What are the effects of trace element fertilizers in trace element fertilizers?
What are the effects of trace element Fertilizers
When a trace element is lacking, the growth and development of crops are significantly affected, the output decreases, and the quality decreases.On the other hand, excessive trace elements can poison crops, which affects production and quality lightly, and even endangers health.
What are the trace element Fertilizers
Those trace nutritional elements that are indispensable for normal growth and development of plants are agricultural as chemical products for Fertilizer. Like boron Fertilizer, zinc Fertilizer, manganese Fertilizer, molybdenum Fertilizer, copper Fertilizer, iron Fertilizer, cobalt Fertilizer, they are micro Fertilizers.These trace elements account for roughly: 0.05%manganese, 0.02%iron, zinc 0.01%, boron 0.005%, copper 0.001%, molybdenum 0.0001%.
1. Divided by nutrients:
(1) Single quality slightly fat.This type of Fertilizer generally contains only one trace element required for crops, such as zinc sulfate and iron sulfate.Most of these Fertilizers are easily soluble in water.Therefore, it is convenient to apply, can be used as base Fertilizer, Fertilizer, and topdressing.
(2) Compound micro -Fertilizer.Most of this type of Fertilizer is made of one or more trace elements when making Fertilizers. It includes a large amount of elements and trace elements and the composite between trace elements and trace elements.For example, ammonium phosphate zinc, ammonium phosphate manganese, etc.This type of Fertilizer, one time is applied to several kinds of nutrients at the same time, which is more labor -saved, but it is difficult to achieve local conditions.
(3) Mixed micro -Fertilizer.This type of Fertilizer is made of various single -quality Fertilizers when manufacturing or applied.
2. According to the type of micro -Fertilizer compounds:
(1) Easy -soluble inorganic salt.Most of these Fertilizers are sulfate.
(2) Unsaccharide inorganic salt.Most of them are phosphate and carbonate, and some are oxides and sulfur.For example, ammonium phosphate zinc, zinc chloride, etc.Suitable for base Fertilizer.
(3) glass Fertilizer.Most of the silicate powder containing trace elements, sintering or dissolving through high temperature
For glass -like substances, such as the stabs of the smelter, can generally only make bottom Fertilizer.
(4) Cheese Fertilizer.It is a compound of natural or artificial synthesis, chelated with trace elements, such as chelating zinc.
(5) Industrial waste with trace elements.
How to use trace element Fertilizers
1. Soil fertilization
In addition to chemical Fertilizers (such as borax, zinc sulfate, manganese sulfate, etc.), commonly used, as well as integrating Fertilizer, glass Fertilizer, slag, or lower foot material, they are usually used as base Fertilizers and planting Fertilizers.The application method is to be applied to the soil before sowing, or mixed with nitrogen, phosphorus, potassium and other chemical Fertilizers.For rice, zinc sulfate is applied for 1 kg per acre, and borax generally uses 0.5 kg to 1 kg per mu. It must be mixed with Organic fertilizer such as Fertilizer Fertilizer to prevent concentrated application of local hazards.
2. Follow the roots
The soluble micro -Fertilizer is distributed into a certain concentration of water solution, and the stems and leaves of the crop are sprayed.The advantage of this method is to avoid the harm caused by uneven Fertilizer in the soil. At the same time, it can also be sprayed multiple times according to specific needs in the different stages of the crops to improve Fertilizer effects.Conditional areas can use mechanical operations or aircraft spraying when applying large areas, and generally spray concentrations from 0.01%to 0.05%.
3. seed treatment
Wain the seeds or seedlings with trace elements before sowing. This is the most economical and effective method, which can greatly save Fertilizer.The concentration of soaking species of boric acid or borax is 0.01%to 0.03%.Only a solution of 5 liters per 500 kg of seeds.Soybean is mixed with ammonium molybdenonate and only 10 grams to 20 grams per acre.