[Plant seed preservation method] What are the commonly used seed storage methods of seed preservation method?

Several seed storage methods commonly used

seeds are the most basic agricultural production materials, the internal cause of agricultural production, and the carrier of various technical measures.Therefore, it is a key link in agricultural production, and it is also an important task in rural winter and spring.If the necessary knowledge and poor management will cause serious harm to pests, resulting in a reduction in the videline of the seeds, a reduction in the number, and severe the seeds of seeds, which will greatly lose agricultural production.Now introduce the storage methods of several main crop seeds:

1. corn

1.Ears store

This is a method of storage that is both economical and effective.This method is conducive to the cooked and dry after the seeds, reducing the harm of warehouses and microorganisms, but the use of warehouse capacity is low.Specific method: In the dry and cold area of winter, use sorghum stalks to prepare corn warehouses in the open -air venue and store fruit ears overwinter.Or leave the autumn corn ears.Suitable for farmhouses to store a small amount.However, this method should not be adopted in areas with high temperature and high humidity, because under such environmental conditions, corn can easily absorb moisturizing and recover, insects, mold, and dry, low temperature and closed storage methods must be adopted.

2.Grain storage

If the number of seed storage is large, this method is mostly used.The key is to reduce the moisture content of the seeds to less than 13 %.After the corn is decarned, the sun is dry and the warehouse is closed.During the storage period, the inspection of seed temperature, moisture and insect pests is strengthened. Once the phenomenon of fever, mildew, sweating, knotting, buds and insects should be taken in time, measures should be taken in time.At the same time, according to the weather and seed storage, ventilation and ventilation in time, and the seedlings must be carried out if necessary.

Two, Wheat

1.Heat in the warehouse storage

This is a storage method adopted by the heat resistance characteristics of Wheat, which has a good effect on insecticidal and promoting seeds.The method is simple and is not limited by the number of seeds.Specific methods: In the sunny weather, the Wheat seeds were exposed to reduce the water content below 12 %. The seed temperature reaches above 46 C but does not exceed 52 C. It lasts for two hours. Then quickly put the seeds into the warehouse while it is hot.And cover 2 to 3 layers of closed insulation, keep the seed temperature between 44 and 47 C. After 7 to 10 days, the sack was lifted and the ventilation temperature was performed until it was the same as the warehouse temperature, and then storage and storage were kept closed.

2.Pottery tank or altar storage method

This storage method is suitable for the storage of a small amount of Wheat species in farmhouses.That is, after washing the cylinder or altar to dry the sterilization and extinguishing insects, first put a certain amount of dried grass and wood ash on the bottom of the cylinder.The newspaper, the newspaper is strictly covered with a dry gray of about 10 cm thick, and then covered with sealing.Prevent moisture and insects during storage.

Third, rice

1.Warehouse storage method

This method requires that the seeds of the seeds are below 14 %.Before entering the warehouse, the board was put in the library, and a layer of grass curtain was spread on the board, and then the seeds were put in the seeds.The temperature of the warehouse is required to keep a stable state to avoid cold and heat.

2.Cellar method

This method is separated from the outside world, and the temperature and humidity change are small, which is not only suitable for storage of rice species with good maturity and low water content, but also for seeds with a little maturity and slightly high water content.The specific method is as follows: Choose a high -dry place, dig a long Square cellar, the depth of the cellar is 1.5 to 2 meters, and the width is not more than 2 meters.The rice seeds are covered with a mat, and then cover the soil for 30 to 60 cm. In early November, the seeds entered the cellar. When the temperature reached 0 to 2 C in April the following year, the seeds were removed.After the temperature rises in the spring, dry it in time to prevent the seeds from fever and deterioration.

Four, soybeans

Due to poor heat conduction of soybeans and prone to change at high temperatures, low temperature and closed storage methods should be adopted.Specific method: After the soybeans are designed, dry the air and dry in time, and control the seeds of the seeds below 12 %.After drying, spread out the cooling first, and then batch the library in batches.In addition to the closed doors and windows, the grasshopper or sacks that can be cleaned and disinfected by the bulk seed pile can also be placed through the clean and disinfected treatment. The cover should be flat, tight, and solid. This method can not only prevent moisture and insects.About 3 to 4 weeks after entering the warehouse, it should be carried out in time, ventilation, ventilation and wetness, and removing miscellaneous sieves to prevent abnormal conditions such as sweating, moldy, and red change.For farmers to store a small amount of seeds, you can use appliances such as glaze, altar tanks, or wooden boxes. The lower and upper parts are paved with some plants ash or dry sand and then closed. During the storage, it is mainly closed. However, it should be paid to timely ventilation.

Five, sorghum, valley

Select the seeds before entering the warehouse to remove impurities and batch grains.The specific method is as follows:

1.Ears storage method

When you choose spikes in the field, leave about 30 cm long stems, bundle small bundles, and hang it in the warehouse after drying.

2.seed

Several crop seed storage methods

Granular storage method

The seeds that have been descended must be dried enough to reduce the water to the safe water content (sorghum: below 13 %; valley: below 12.5 %), and store at low temperature densely.If the seed temperature is below 25 C, it can be safely stored. If the seed temperature exceeds 25 C, the seed water should be appropriately reduced.If the seeds enter the library, if the temperature decreases, it should be ventilated and cooling in a timely manner to prevent exposure.Pay attention to checking the moisture and fever of the seeds during storage.

Six, cotton

The cotton shell is hard, with short velvet on the surface, such as a large pile of storage, closed in the pile, short velvet and moisture. Due to the harvest of different periods, the maturity, and the water content of the water are different. ThereforeStorage after tie, it is best to use the frost before planting.The seeds are fully dry, and the water content is less than 12 % to enter the warehouse. It is suitable to control the height of the seed stack. It is advisable to ventilate and ventilate.Measurement.

In addition, during the storage process, new and old seeds cannot be stored together. Different crop seeds must be strictly prevented from mixed, and they cannot be mixed with Chemical Fertilizer pesticides. During the storage period, we must maintain relatively constant temperature and humidity, strengthen management, check regularly, find problems, find problems, and find problems.Take timely measures and solve it.

What are the seed preservation methods

1.

It is to store dry seeds in a dry environment, so that the seeds are often kept in dry storage during storage.In addition to drying the dry environment, it also needs to be combined with low -mild sealing conditions. This method can be adopted for seeds with low safe water content.

1, Ordinary Dry Tibetan Method

Usually storage of warehouses or basement in production.As long as the seed storage period is short (most1A), The safety water content is low and the germination ability will not be quickly lost in natural conditions, and it can be stored in a dry warehouse or in the basement.Some tree species mainly include fir, cedar, pipeline, locusting, oil pine, stinky, Hehuan, and cricket trees.The law is simple and easy to do, and the cost is low.The specific method is to put the seeds that have been properly dry and have reached a safe water content, put in a container (such as cloth Bags, sacks, barrels, boxes, etc.), and put them in storage rooms, cellar with low temperature, drying, and good ventilation., In -basement.It is necessary to check regularly during the storage. If the seeds are found to be hot, humid, and moldy, effective measures such as ventilation, dryness, stalling, and turning the warehouse should be taken immediately.

2, Low -temperature drying method

Place dry seeds in0~5, relative humidity is50%~60%storage under the conditions so that the life of the seeds can be kept1AThe above, but the seeds are required to be fully dry.To meet the standards of low temperature storage, there are generally special seed storage rooms or temperature -controlled and wet seed libraries.

3.

After loading the seeds into the container, seal it to isolate it from the external air, no gas exchange, and not affected by the changes in the humidity of the external environment.seeds (Yang, Liu, Elm, Sang, etc.) and precious seeds that need to be stored for a long time can be sealing and drying. This method is the best effect.The specific method is to put the seeds into the seal container and place it in0~5In the environment of .If the seeds are not large, use glass and other transparent containers to make it easy to observe the change of the seeds.To prevent the seeds of the seeds from rising, the desiccant must be placed in the seal container.Commonly used desiccants include: color -changing silicone, calcium chloride, charcoal, etc.seeds with low safe water content are the best storage effect with this method, but this method is not suitable for high moisture content seeds.

4, Super dry storage method

Also known as the storage of ultra -low moisture content, refers to the reduction of seed water content to5Below, a method of storage of seeds under the condition of room temperature or lower than room temperature after sealing.The effect of super dry treatment and low temperature storage is consistent, such as short -lived elm tree seeds, naturally stored1~2The month loses the germination power, and the super dry treatment reduces the moisture content of the seeds to2%Below, store at room temperature3The vitality of the month is still very high.Most seeds with low water content can be stored over dry storage, but different types of seeds have different degrees of dryness.Fat seeds have strong dryness and can be stored in super dry; starch and protein seeds have a large degree of resistance to dryness.The seeds are not dry and better, and there is a critical value of a super dry moisture.When the moisture content of the seed is lower than the critical value, the seed life is no longer extended, and dry damage occurs.The critical value of different seeds of different seeds is different.3%~5%The best moisture content of Eucommia seeds is super dry.3.5%~4.5%Essence

Second, wet Tibetan method

Put the seeds in a moist, moderate low -mild ventilation environment.Most of the seeds with high water content can be used in this method, such as: chestnuts, crickets, walnuts, etc., the temperature during wet hidden is best0~3Around .

1, Outdoor burial

Choose the width of high terrain, loose soil, good drainage, and backwind1~1.5MThe pit, the length is determined by the number of storage seeds. The depth requires below the soil frozen layer. Put some stones in the pit first, about the height10cmLeft and right, then spread some wet sand on it, the thickness is4CMOn the left and right, put the storage seeds on it, the seeds are placed on the ground10~20cmBy the time, it is covered with wet sand, and the soil is piled into a conical shape beyond the ground surface.10cm, Insert a pore bamboo Tube from the center of the pit to the bottom of the pit (for ventilation).The temperature and humidity in the pit are often checked, such as chestnuts, begonias, Du Li, etc. This method is well stored.

2, Indoor stacking method

The same is the same as the Outdoor burial. It is just sprinkled with water in the warehouse or the basement of the basement, and then supplemented by wet sand. The seeds are mixed with wet sand and stacked.

How to distinguish the seeds of vegetables?

Take a look:Based on certain shapes, sizes, and Skin colors of the seeds.Leek, green onion, and onion seeds are very similar, while leeks are horseshoe -shaped, Smooth and uneven, shallots and onions are pronged, and they are more black than leek seeds.Bright.Some seed lengths have a certain correlation with the length of the fruits, and if the Cucumber is also slender if the long Cucumber is slender.The cabbage species are large, the mustard species are small, and cabbage rapeseed is medium.The epidermis of the cabbage of the cabbage is relatively rough, and the blue species lack luster. There is a layer of white frost in cauliflower species. There are always some yellow grain seeds in rapeseed species, similar to immature tender seeds.The cabbage is black and bright as a new seed. The seeds are dark and white are Chen seeds.

Listening:Grab the bean seeds and shake it in your hand, listen to the crispness of its sound.The crispy sound is low, and most of the Chen species of losing germination rate.The sound is turbid, and the germination rate is not crispy. It is available.

Three smells:Sniff the smell of seeds.The flavor of the celery is the new seed, and the fragrance is Chen seeds.Onion seeds have onion flavors, chili seeds are spicy, and there is no spicy flavor of sweet peppers.

Four pinch:Grab a handful of Cucumber seeds with your hands. If many seeds stick to the hand as new seeds, it is Chen seeds without stickiness.Gently rub the tomato seeds with three fingers, and the fingers are more Smooth.

Five:Put the cabbage seeds and eggplant with their fingernails, which can be used in half for the Chen species that loses germination and cannot be used.

Six:Put the oily seeds of the Cross flowers on the plate with nails and crushed it with nails. After pressing it, it is scattered and the internal color becomes red.Light green, this kind of germination power is good.

Seven tasks:Try to bite with your mouth.Mustard and snowy seeds have a strong spicy flavor; cabbage, cauliflower, and blue seeds have bitter flavor; rapeseed seeds are sweet; cabbage has a light flavor, and new species are heavier than old species;The respective smell; chili has spicy flavor, sweet peppers without spicy flavor.

Vegetable cropy seed identification skills

1. Rapeseed: Peel the seeds of rapeseed seeds for observation. All young buds and young roots are blue and white, and the leaves are green, yellow and white, yellow, moist, and elastic.With brown, the cotyledon is also brown and dumped, shrinking to the seeds that are already dead.

2. Cabbage: The seedlings of the seeds are 3-5 years, and the life limit is 2-4 years.The mature and full new seeds are iron rust or reddish brown, mature seeds are golden red, Smooth and fresh epidermis, slightly concave at the germ, pressed with nails, yellow or yellow -green, more fat, and the Skin is not easy to break; Chen seeds are not easy to break;The epidermis is dark iron rust or dark brown, dark and lustrous. There is often a layer of "white frost". It is pressed with nails. The child's leaves are orange -yellow, and the epidermis is broken into small pieces.

3. Cucumber: 3-5 years of seedlings, 2-3 years in use.The epidermis of the new seed is milky white or white, shiny, the end of the end of the end is more pointed, and the seed Skin is tough. When peeling, the slices are connected to the film.There is no gloss in the epidermis, there are macular, the end of the end of the end is more blunt, the Skin is crispy, and it is not easy to connect when peeling.

4. Tomato: The seedlings of the seeds are 3-6 years, and the life limit is 2-3 years.New seeds are neat, oblique, long and soft, rubbing the palm of the palm without stabbing with the hands, and the gross hair is not easy to be rubbed.The oil can be printed and dyeing paper; the seeds of the Chen seeds are tingling with the heart of the hands, and the seeds are easily rubbed or rubbed. After cutting, the seed kernels are yellow and white.

5. Eggplant: 3-6 years of seeds and 2-3 years of use.New seeds are orange -yellow, with slightly yellow edges. When bite with teeth, it is easy to slide. When twisting with your hands, it is tough when twisting with your hands.The center color is consistent, there is no toughness when the hands are twisted, the broken place is neat, and the Skin is crisp.

6. Pepper: 3-4 years of seedlings, 2-3 years in use.The Skin of the new seeds is dark beige, orange -yellow in the umbilicus, shiny, soft and not easy to break when the teeth are bitten, and the spicy taste is large;When bite, it is hard and crispy, easy to break, and small or spicy.

7. Onion and garlic vegetables: The seedlings of the seeds are 1-2 years, and the use period is about 1 year.Including onions, green onions, chives, etc.The Skin of the new seed is dark black, shiny, embryo white, and has the original fishy smell of this variety; the epidermis of the seeds is black and dark, and the embryo is yellow.

Blueberry seedlings breeding regulations for potted blueberry planting conditions and methods

Seedling process

1, Use organizational training methods to cultivate half -high blueberry and short -cut blueberry seedlings:

(1) Basic medium:WPM ZT (0.5~1.0mg/L) IBA0.05 mg/L)Essence

(2) Start training: use the tip of the stem or stem, use75%Alcohol sterilization30S, Use again0.1%Sterilization of mercury8Min, Then rinse it with sterile water five times, inoculate to the medium, light16H, Light intensity2000 ~ 3000Lex, temperaturetwenty threeAround .

(3) Proliferation and training: After the seedlings are full of seedlings, they are repeatedly transferred until the required number is required.

(4) Evaluation: The bottle seedlings are good, the color is normal, and the infection rate is controlled5%Inside, the quantity is moderate, which is qualified.

2, Transplanting:

(1) Three days after the seedlings are refined, cut into a contract3Cm stem section, use800Double bacterial spirit and root powder soak10minAfter that, transplant it into the seedling plate filled with water moss, and the temperature is controlled15~28, humidity70~90%, Ding the Shading net until the stem section is rooted.Everywhere15Spray once800Domobacterial and rooting fluid.

Move in after rooting1213In the nutritional bowl of centimeters, seedlingspHValue control4.5Left and right, at the same time1/4The left and right sawfo or pine needles.

(2) Management: Moderate watering every day, observe the condition and insects, and prevent timely prevention.

(3) Assessment: rooting rate70%, The survival rate after rooting90%For qualification.

(4) After the root system is full of nutritional bowl, you can move into the field.

Several conditions of potted blueberry planting:

1,soilpH: Blueberries can grow healthy in an acidic medium and cultivate soilpHValue4.5~5.5The most suitable for blueberry growth.GardenpHGenerally6~7Between the acidic soil sold by the flower and bird market,pHThe lowest value is also there is also5.5~6between.Generally, sulfur powder is used to adjust sulfur powder, and one gram of sulfur powder is added per liter can make the soilpHDecrease1There are also individual varieties that have little requirements for acidicity, but they are not as good as planted under acid soil.

2Cold storage: The so -called cold storage volume is the normal flowering result of blueberries generally requires lower than7.2The low temperature duration of .The classification of blueberry varieties is mainly based on cold storage.The cold storage is not enough, even if it is blooming, it will not bear fruit.(PS: In the above classification, suitable areas are for reference only. For example, many places in high mountains in the southern areas are also suitable for the planting of the northern high -crow blueberry.Cure

3Fertilizer: Blueberry is suspected of fat and calcium. In planting, it is generally added with rotten beef, sheep, rabbit manure or rotten soil in the early stage of planting.A small amount of topdressing is still necessary.Avoid big fatWell, wiseGenerally, the content is used1: 1: 1Nitrogen, phosphorus and potassium Compound fertilizer, or ammonium sulfate1: 2000Double solution.Also pay attention to stay away from calcium, such as some people often put eggshells in Flower pots.

4Watering: Blueberries are wet, but they need to be loose and breathable soil. Therefore, the water permeability of the soil must be good. When the temperature is high, it may need to be watered once in the morning and evening.After I tried to plant Beigao to friends in Guangdong, proper watering can make blueberries resist high temperature and safe in summer.

5Light: The needs of blueberries for light are the same as other plants, which is essential.;;Compared with the same variety, if the light intensity is not enough, the flower buds will be less and the fruit quality will be reduced. For orchards with excessive cultivation density, proper trimming will be conducive to photosynthesis.For the balcony terrace, the light management of blueberries is simpler than the orchard, but it should be paid attention to ventilation.

It is recommended that it is better to place Nantai platform

6Following: The pollination of blueberries is a vital level. Most of the blueberries are heterogeneous pollination.Gaopya blueberries can be solidly, while rabbit eyes blueberries and low -cut blueberries generally need to be configured with pollination trees.The structural characteristics and pollen viscosity of the blueberry floral ware, the pollination is mainly done by insects.It is generally believed that the wings of the Hornets can vibrate, which can vibrate pollen, and the variety of corollas is not easy to pick powder. Therefore, the plantation garden mainly relies on rejuvenating pollination.Artificial pollination, you can lightly dip the pollen with a brush;;A friend uses a hair dryer to pollinate, and the effect is also very good. It can be seen that the sufficient amount of wind can also play a good role in pollination.

7Cold anti -prevention: short and semi -high -high blueberries have strong cold resistance, but due to different low temperatures in various places, there are still frost damage in extreme weather. The most important of which are the end of the open -air winter branches and flower buds.EssenceTherefore, the cultivation and wintering protection in cold areas are also important measures to increase production.

Personal test: South High variety -Sharp Blue, Mist,2013Frozen2014In the spring of the spring in Shandong, the freezer of the sun, the freezing damage occurs in the sun1In the end of the month-2In the beginning of the month, the top of the branches3-4Flower buds were frozen, the sun was frozen to death, and no freezing damage occurred in the cold shed.

8Potted plants: In the more compact and golden cities, blueberries are mainly potted. Almost all blueberries are suitable for potted plants.The terrace should also pay attention to the appropriate varieties of height and height, so that the Flower pot moves.

What seed germination is the fastest

1. Sesame (3-5 days)

Sesame is a short -day crop for one year, with a short growth period and rapid germination.Under the condition of suitable temperature and moderate humidity, it can germinate about 3-5 days. It grows rapidly and is one of the fastest plants.

2. rapeseed (4-6 days)

The rapeseed growth is strong, and the entire growth cycle is also short. It takes 4-6 days to germinate, and it is also one of the plants with faster results.

3. Green vegetables (4-7 days)

Green vegetables are generally suitable for planting in spring and autumn, and germination takes about 4-7 days.Moreover, under the condition of suitable conditions, the growth of green vegetables is very fast, not only growing fast, but also a very cold -resistant vegetable.

4. Celery (5-7 days)

Celery is a healthy vegetable, which not only tastes fragrant, but also has rich nutrition.Eybiting takes 5-7 days, and the growth period is generally 2-3 months.

It takes a few days to germinate seeds

1. seed variety

Under normal circumstances, the seeds need to sprout for about 3 to 7 days after sowing. Some varieties such as germinated, spinach, shallots, small rapeseed, etc., germination time is usually between 4 and 8 days. The germination time of strawberry seeds is long, and it may take 15 days to 30 days. seeds of herbal plants, such as early cooked and duck, etc., the germination speed is very fast, and it may even germinate within 48 hours. seeds such as rubber and hazelnuts take a few months to germinate.

2. storage conditions

seeds should be stored in dry, ventilated and cool environments to maintain their nutritional value and vitality.Poor storage conditions may cause slower germination or unable to germinate.

3. Temperature and humidity

Appropriate temperature and humidity are the key factor of seed germination. The higher the temperature, the faster the seed germination, but the too high temperature may also cause the germination failure. The water content of the soil also affects the seeds of the seeds.The suitable soil water content is conducive to seed germination. Excessive or too high soil water content will affect the sprout speed and germination rate.

4. Light

For the seeds of most plants, light is not a necessary condition for germination, but high -quality light can promote seed germination and growth. The seeds of some varieties need to be dry to germinate, while others need light.

Suitable for children to grow bud seeds

1. sunflower

Advantages: large seeds and easy to germinate.Generally, the seeds are inserted into the Nutritional soil for a day, and the depth of burial is about 1 cm. At a temperature of about 20 C, sprouts can be produced in about a week.

Features: Fast growth rate, it can grow to the ruler in about a month, and you can enjoy flowers in two months.And sunflowers are shiny, very amazing and interesting.

2. Dwarf Little Tomato

Advantages: The seeds are alive when you see the soil.You can see the buds in more than a month after sowing, and you can eat fruit in two months.

Features: both can be viewed or edible, with diverse varieties, including yellow, red and purple, which are very attractive.

3. Beans (such as red Beans, mung beans, peas, etc.):

Advantages: Vegetable seeds that will germinate in 3 to 7 days can quickly bring a sense of accomplishment to children.

Features: The seed shell is thin and easy to germinate. It is suitable for children to observe the growth of plant growth.

4. Rapeseed

Advantages: fast hair buds can be planted indoors or Outdoor.

Features: It is necessary to water the humidity every day, appropriate fertilization, and appropriately dilute the density after germination.

5. Buckwheat

Advantages: Fast sprouts, no more light and Fertilizer, can also be easily planted indoors.

Features: It is necessary to water the humidity every day and remove the buds of germination in time.

6, radish

Advantages: simple planting and fast harvest.The traditional red and white varieties germinate quickly and can be planted in any container.

Features: 4-8 days of germination time, that is, about 28 days.

1. Is it illegal to plant tobacco?

It is not illegal, and the law does not prohibitively regulations on private planting tobacco.

"Tobacco Method" Chapter 2 of Tobacco planting, Acquisition and Dialing

Article 7: The tobacco leaves referred to in this law refer to the roasting and fumes required for the production of tobacco products.Other drying tobacco, which is not included in the famous drying list, can be sold in the market trading market.

Article 8: Tobacco planting shall cultivate and promote excellent varieties according to local conditions.The excellent varieties are approved by the National or Provincial Tobacco Variety Review Committee, and they will be provided by the local tobacco company.

2. Tobacco planting conditions

1. Sign the contract strictly in accordance with the national plan

"Tobacco planting Contracts" is a written form of a written form of a tobacco company signed with a tobacco and clearing the rights and obligations of both parties. The contract must take effect after the two parties are stamped or signed.Tobacco companies or its entrusted units must sign a purchase contract with tobacco planting in accordance with the plan issued by the state, and must not exceed the national plan.

2. The contract signing of the contract shall follow the principle of equality and negotiation

The tobacco stations authorized by the branch are Party A, and the farmers of the planting tobacco are the contract Party B. The two parties shall follow the principles of equality and voluntarily negotiating and signing the contract.

Third, tobacco planting points

1. planting environment

Tobacco's requirements for the planting environment are still quite high. Tobacco likes a warm and humid environment.For moisture, tobacco requirements are also quite large.Tobacco prefers the acidic soil that is biased towards red first. On the contrary, it is not used to those vast black soil in Heilongjiang.In addition, the growth of tobacco needs enough light.

2. Selection and sowing

For tobacco, choosing seeds is also a critical step. Generally speaking, selection is based on those more common operations to choose the more full, rounded, and no disease seeds.As for the treatment of seeds before sowing, it is generally necessary to bask in the sun for two or three days, and then choose a double -layer thin film paper Tube for seedlings. Generally speakingEssence

Sowing timeGenerally, it is more suitable for sowing around mid -February.When sowing, the weather should still be relatively cold, so it should be applied to the cover film.This can ensure the temperature and humidity during the development of the seeds.

3. Configuration of Nutritional soil

Generally speaking, it cannot be sowed directly. It is best to configure nutrient soil. The composition of nutrient soil is generally appropriate to use two -thirds of the soil and one -third of animal feces.

4. Field management

For tobacco, there is generally a rule that when the output is increased, the quality will decrease accordingly. Therefore, we must pay attention to it. When planting tobaccoHigh -yielding must have a degree, otherwise, in the end, it will lead to a decline in yield.

Fourth, tobacco disease and insect pest control

1. Tobacco Black Tiny Symptoms

Prevention: 1000 times solution of 68%spermic creamy manganese zinc wettable powder, 1000 times liquid of 72.2%Pricker water, or 50%of the enemy can pine wettable powder 800 times solution spray and irrigated roots.

2. Tobacco root black rot

Prevention: In the early stage of onset, optional: methyl sulfurus spirit; polymorrhol;

3. Tobacco Red Star Disease

Prevention: At the beginning of the onset, it can be used: Daisen and zinc; polyphinopol; cleaning of bacteria, 1 spray for 10 days, 1 consecutive to 3 consecutive times.

4. Tobacco ordinary flower leaf disease

Prevention: Use (20,000 units)/(ml) Ningnanicillin for leaf surface spray; 0.1%sodium bronate or 0.1%zinc sulfate and 0.3%Urea can also be used for 3-4 days to spray 2-3 times.

5. Tobacco coal dirt

Prevention: pyrine, moltin, or azine.

6. Tobacco withered disease

Prevention: At the beginning of the onset, began spraying or irrigation: multi -bacterial spirit; methyl sulfuric bacteria, or thorough bacteria clear, each plant was irrigated for good medicinal solution, 2-3 times.

7. Tobacco frost mold

Prevention: At the beginning of the onset, start spraying or pouring: Bingsen zinc, Jiashi Ling manganese zinc, or manganese zinc and hydride, 50-70L per acre used per acre.Spray to.

8. Tobacco aphid

Prevention: It can be used for spraying of 1200 times liquid with 5%imidacloprids and 2500 times liquid of 3%hydromyline.

9. Crowded pupil moth

Prevention: It must be controlled before the larvae 3 years old. After 4 years of age, the larvae resistance is strong.It can be sprayed with 5%high-chlorofonal salt micro emulsion 3000-3500 times the middle and lower tobacco leaves and flower buds, 2-3 times every 15 days.When applying the medicine, you should pay attention to the positive and back of the tobacco leaves, because the oblique night moth egg blocks are generally produced on the back of the tobacco leaves.