1. The role and efficacy of Urea Fertilizer

Urea is a type of nitrogen fertilizer. It is a typical amide nitrogen fertilizer with a nitrogen content of 46%. It is also the highest nitrogen -containing nitrogen fertilizer. It is suitable for various soils and crops. It has a wide range of applications. So what are the effects and effects of Urea?

1. Promote crop growth

Nitrogen in Urea is one of the nutritional elements necessary for crop growth and development.And if the crops are deficient in nitrogen fertilizer, the plants will be lighter and the old leaves become yellow;fruit trees are small, less fruit, thick peel, hard Skin, hard and hard.

2. Promote the development of crops in the growth period of growth

During the growth stage of crops, Urea on crops can promote the development of crop (especially fruit trees).The use of Urea for crops can promote the nitrogen content of crop blades, speed up the growth of new shoots and inhibit flower buds.

3. Killing pests

Urea is used as leaf Fertilizer, while killing the crop, it can kill pests.After dissolving Urea and laundry powder with water, the crop surface is sprayed on the crop. It can quickly supplement the crop to supplement Fertilizer and effectively kill some pests.The killing performance of software pests such as green insects, aphids, and red spiders has reached more than 90%.As a neutral Fertilizer, Urea is easily absorbed by the leaves, and the damage to the crop is very small.

2. What are the uses of agricultural Urea

In terms of agriculture, Urea is used as a Fertilizer, and there are many uses. The main uses are the following:

1. Fertilization

(1) Urea is a neutral speed -effective nitrogen fertilizer, which can be used as base Fertilizer, topdressing, and leaf surface Fertilizer. The main function is to promote cell division and growth, and promote the leaves of the plant.

(2) If Urea wants to be used for Fertilizer, the seeds and Urea should be kept a certain distance to avoid direct contact.

2. Adjust the amount of flowers

Apple small years, about 5-6 weeks after the apple tree blooms, 0.5%Urea solution is applied to the leaf surface, spraying twice continuously, which can increase the nitrogen content of the leaves, accelerate the growth of new shoots, and inhibit the differentiation of flower bud.

3. Sparse flowers and fruit

Peach trees are more sensitive to Urea. After spraying 8-12%Urea solution, within 7-14 days, sparse flowers can be achieved.

4. Prevention and treatment pests

According to the proportion of Urea: washing powder: clear water = 4: 1: 400, mixes evenly, spray the leaf surface, and can prevent and treat pests such as aphids, red spiders, vegetables and other pests on crops such as fruit trees, vegetables, cotton.

5. Do feed additives

For cows above June, sheeps over March can be added to daily feed.Under normal circumstances, the amount of Urea should not exceed 1%of the dietary and dry substances, and it can also be used by adding 15-20g Urea per 100kg weight.

6. rice species

During the spikes and beginning of the rice, 1.5-2%Urea solution is used to spray the parent or mother, which improves the bisection rate of the parents.

1. fishing time

From 12:00 on May 1 to 12:00 on August 16.

Second, the waters of fishing

The South China Sea (including Beibu Gulf) under the north latitude of Guangdong to the "Fujian and Guangdong Sea Global Line) under its jurisdiction.

Third, the range of fishing rest

1. All types of fishing vessels other than fishing tools, and fishing auxiliary vessels for fishing vessels.

2. fishing tackles and fishing boats actively report to the competent agricultural and rural authorities of the local agricultural and rural areas to report fishing management if they report to the competent agricultural and rural authorities and their marine comprehensive law enforcement agencies, and they are also included in fishing management.

3. All ships involved in fishing towns.

1. What is the difference between high -top football shoes and low -top football shoes

football shoes are generally worn when playing football. There are many types of. According to the high level of shoes, they can be divided into high -top football shoes and low -top football shoes. So what is the difference between football shoes and low gangs?

1. The height of the shoe is different

Low -gang football shoes are low, probably under the ankle; high -top football shoes can usually wrap the ankle.

2. Different uses

Low football shoes are more flexible when playing football, but the stability is slightly worse; high -top football shoes are mainly to make sand and gravel, glue grain not easy to enter shoes, and ankle protection.

2. football shoes are good or low -top

football shoes are divided into high and low gangs. Some of the professional stars prefer low -top football shoes, and some prefers high -top football shoes. So which one is good for football shoes and low gangs?

1. The advantages and disadvantages of low -help football shoes

The advantages of low -ranking football shoes are lightweight, more flexible, it will be lighter to wear, and changes will be more flexible; the disadvantage is that the protection is not as good as high -top football shoes, and it is easy to enter glue.

2. The advantages and disadvantages of high -top football shoes

The main advantage of high -top football shoes is to fit the ankle, which is better comfortable, especially on human grass with more rubber particles, which can effectively prevent rubber grains in the shoe, which also has a certain protective effect on the ankle of football players; disadvantages areIt is more laborious to wear and take off. When you first wear it, you need to take some effort to adapt.

In general, high -top football shoes and low -top football shoes have their own advantages and disadvantages. It is not necessarily better. It mainly depends on which one you prefer to wear.

What to do if the swimming mirror is foggy

1. The most direct way is to buy anti -fog agents, rub the swimming moster, and then rinse with water.

2. Wash with a small amount of babies (tear -free formula) to wipe the swimming mirror, and then wash it with water;

3. There are also many friends who licked it directly with their tongues, which can also achieve a certain effect;

4. You can also use detergent, shower gel, shampoo drip into the frame. After applying it evenly, wash it with water (clean water will stimulate your eyes).

Factors affecting the effect of anti -fog

1. External factors

(1) Poor water quality is not good and has oil quality.

(2) Disinction water or too much chlorine pool.

(3) The high temperature exceeds 75 degrees Celsius.

(4) Direct light of ultraviolet rays.

(5) Chemical agent erosion.

(6) The mirror surface is scratched.

2. Personal constitution is easy to fog

(1) Those with a large amount of sweats can easily cause oil dirt.

(1) Oily Skin, with a large amount of oil on the face.

(1) Those with long eyelashes and brushing the lens.

3. Use habits

(1) After use, it is not rinsed with water, causing the internal oil to cover the anti -fog surface.

(2) Bring into the three -warm (sauna) oven, soak at high temperature or various medicinal baths such as chemicals to make the anti -fog fail.

(3) Directly exposed to the sun, and the ultraviolet destruction of anti -fog chemical effects.

(4) Place the car instrument board and set the object box (high temperature).

(5) Wipe the mirror in an incorrect way (wipe dry with a wipe or gently scrape the mirror).

4. swimming moster style

(1) The swimmingoscope space is small. When the amount of sweats is large, there is fog in the air; for example: the space in the bathroom is small, and the temperature and humidity are high, and the whole bathroom is fog.

(2) Wearing for more than 20-30 minutes for a long time, you must remove the fresh air to replace it, otherwise there will be fog.

How to maintain or restore the effect of anti -fog effect

1. The anti -fog function is hydrophilicity. Please soak it with water before use and then wear it. The anti -fog effect is better.

2. During the process of wearing, cleaning or use, avoid contact with nails or fingers and the internal anti -fog surface of the mirror to prevent the lens from scratching and destroying the anti -fog effect.

3. After each swimming, rinse it with water to prevent the oil stain from drying and block the anti -fog effect.

4. After each swimming, due to personal sweat and oil in the pool water, it will be attached to the mirror, which will affect the anti -fog function of the mirror surface.At this time, you can use a neutral cleaning agent to gently rub the foam with your fingers, and then use your fingers to use a little foam to gently wipe the swimming mirrors and wash the oil inside the goggles (note: before wipe with the foam, soak the lens first;When you wipe it with your fingers, avoid the fingernail scratching the anti -fog film.); Then rinse with water, you can remove the oil and restore the anti -fog effect.

5. Because the anti -fog in the Swimming goggles will be used for a long time and washed, the anti -fog effect in the Swimming goggles will be reduced. If the above methods are still not effective, the anti -fog agent can be used to enhance the anti -fog effect; alsoYou can apply it to the swimming mirror surface (no need to rinse with water), but these methods can only be briefly fogged and cannot maintain the anti -fog function for a long time.Whether there is oil on the mirror, and clean it according to the normal neutral cleaner foam.

How to extend the performance life of swimming mirror prevention and fog

1. The ultraviolet rays of the sun will destroy the anti -fog performance of the Swimming goggles. Try to avoid placing the swimming moster in the sun.

2. The anti -fog performance of general swimming moster will fail at 80 degrees Celsius.Therefore, you should avoid letting the Swimming goggles contact the thermal source, and avoid placing the Swimming goggles in the storage box irradiated by the sun.

3. The anti -fog performance of the standard swimming moster can be maintained for more than 100 hours. If the mirror surface is found when it is just used, most of the reasons are that the user swims in the unclean or oil -quality water, so that the lens anti -fog surface is attached to a one.Layer oil dirt is blocked by the anti -fog effect. At this time, as long as the oil dirt on the lens with a neutralized lens is used to restore the anti -fog performance of the goggles.

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1. What is the difference between Ski shirts and down jackets

1. Different fabrics

From the perspective of the fabric, the parameters of the Ski clothing are generally much higher than the down jacket.Now down jackets, the mature use of hot -stuck technology, and the widespread application of a large number of new technical fabrics have reduced the overall weight of the down jacket.

Compared with skiing clothes, down jackets are even more light and simpler.Compared with down jackets, skiing clothes emphasize the waterproofness and warmth of clothing functions.Therefore, the fabric requirements are relatively high, and more materials will be used to improve these performance indicators, such as thicker lining, more fabric pressure glue coating.Therefore, skiing is relatively thicker as a whole and more complicated in appearance.For friends who are Fighting on the snow, this characteristic is particularly important. Even if you Ski for a day, you will not wet the clothes in the snow suit.

2. The difference between the hat design

In terms of hats, the difference between skiing and down jackets is relatively large.From the perspective of down jackets, the handling of the hat, that is, is directly connected to the clothing, its collection is also very simple. Generally, it is fixed around the collar, and the hat is smaller and very close.The advantage of it is that it can reduce unnecessary process materials to increase weight, and it can also make the sealing degree of clothing achieve the best, and better protect the user's body in the harsh climate.

Ski clothing is more despise the role of hooding, because skirs rarely use the hood of skiwear. They can choose to use a better hat and a safer helmet to use it. ThereforeBookmark in the collar of the clothing, either dismantle it directly from the clothing.

3. Different wind -proof skirts

The windshield of the Ski clothing is designed to prevent irrigation and the snow from the lower part of the clothing after falling.It is basically a necessary design for Ski suits.

But for down jackets, such designs are rarely considered.So if you wear down jackets to Ski, if you accidentally fall, snow will easily enter the clothes.

2. Which of the skiwear or down jacket is warm

The warmth of skiwear and down jackets mainly depends on the filling of the filling, the appearance of the outer material and the number of fluffy, and the fluffyness.The inner layer of warm material used in Ski suits is generally hollow cotton or DuPont cotton, which is better for warmth. The filling of the down jacket is mainly duck down. The processed duck down has a strong warmth ability.Therefore, generally, the skiwear is not warm. Ski sports are a sport with a large amount of sweating. Generally, skiwear will be thinner and breathable.Prevent excessive designs of sweating, and down jackets are designed for warmth.

However, if it is in skiing, the warmth effect of the skiwear is much better than the down jacket, because the down jacket is moisture. Once the snow is dipped in the snow, the snow grains melt, and enter the clothes and wet the filling of the down jacket.The down jacket not only keeps warm, but also makes the Ski people feel colder because of humidity.

Disclaimer: The above method stems from the index of the program system or the sharing of netizens. It is for your reference only and does not represent the research perspective of this website. It proves that it is valid. Please pay attention to the authenticity and authority of the source of the content of the content.Apply to delete & gt; & gt; error correction & gt; & gt;