(1) Nitrogen fertilizer:
Ammonium bicarbonate, also known as ammonium bicarbonate, is suitable for a variety of crops and various types of soil without adverse effects on the soil. Can be used as top dressing or base fertilizer, but must be applied deep and immediately cover the soil to avoid ammonia volatilization and smouldering crop leaves and leaves. When making the base fertilizer, turn the ammonium bicarbonate into the ground and then flatten it. The average amount of mu is 20-25 kg. When topdressing, you should master the principle of applying soil cover immediately and watering it in time, with a depth of 7-10 cm, generally 15-20 kg per acre. Ammonium bicarbonate should not be used as a seed fertilizer. When it is necessary to use it as a seed fertilizer, it should be ditched at a distance of 7 cm away from the seed. The amount of soil after application should not exceed 5 kg. Ammonium bicarbonate cannot be applied together with an alkaline fertilizer such as plant ash or the like to avoid loss of ammonia volatilization. The packaging of ammonium bicarbonate should be strict. Prevent damage. If you have not used it, you should tie it tightly and store it in a cool place. Do not store in the same warehouse as the seed. After the carbonic acid is agglomerated, it should be used as it is.
(2) Ammonium sulfate:
Also known as ammonium sulfate, ammonium sulfate can be used in a variety of soils, most suitable for alkaline and calcareous soils. The base fertilizer is 10-20 kg per mu. Chasing depends on the growth of the crop, but pay attention to deep application of soil and watering, or before rain. Ammonium sulphate is suitable for seed fertilizer, and the average dosage is 5 kg. Fertilization should be timely watered or rained to facilitate the use of fertilizer. It is not advisable to contact or mix with alkaline substances when storing and using ammonium sulfate, so as not to reduce the fertilizer efficiency.
(3) Ammonium nitrate:
Also known as ammonium nitrate, suitable for a variety of crops and soil, suitable for topdressing, but to be applied in stages, about 10 kg per acre is appropriate, generally not used as a base fertilizer. Ammonium nitrate is flammable and should not be placed together with flammable materials during storage to avoid fire. Ammonium nitrate is easily deliquescent and should be stored in a high dry place. Do not use agglomerated ammonium nitrate to avoid an explosion.
(4) Urea containing nitrogen:
No adverse effects on crops and soil, strong hygroscopicity, should be stored in a dry place. Suitable for all kinds of soil, can be used as base fertilizer, top dressing and top dressing. Urea has a high nitrogen content, and the application rate should be reduced correspondingly to other nitrogen fertilizers. Generally, it does not exceed 10 kg per mu, and the application date should be 4-7 days earlier than other nitrogen fertilizers. In dryland application, whether it is base, top dressing, dry or wet application, it should be applied deeply. Because it does not contain harmful ingredients, it is suitable for root dressing, application concentration, food crops 1.5%-2%, cotton 0.5%-1%, vegetables 1%.
(5) Phosphate fertilizer:
Soil and crops have the effect of improving saline. When used as a base fertilizer, it can be mixed with organic fertilizer for 10-15 days, then applied in the arable land and turned into the ground. 35-50 kg per acre. When planting fertilizer, you can use ditch or hole application, and concentrate the fertilizer on the side of crop seeds, 5-10 kg per acre. In the late stage of crop growth, if phosphorus is insufficient, the root can be sprayed with phosphorus. The method is 50 kg of water plus 0.5-1 kg of superphosphate. Soak for a day and night, filter off the dregs and use. The amount of liquid used for spraying phosphorus on the root is 40-50 kg. Spraying on cloudy or evening can make crops full and promote early maturity.
(6) Compound fertilizer:
Crops have different needs for various nutrients, and the proportion of nutrients contained in compound fertilizers is fixed and cannot fully meet the needs of different soils and different crops. Therefore, fertilizers containing single elements should be supplemented.
to sum up:
The fertilizer has high nutrient content and fast fertilizer efficiency, and has the advantages of being easily absorbed by crops, convenient use and transportation, and labor saving. However, chemical fertilizers do not contain organic matter, and nutrients are single, and they cannot be fertilized. Therefore, it is necessary to supplement the application of chemical fertilizers on the basis of adding organic fertilizers, and at the same time, do not make the proportion of nitrogen, phosphorus and potassium imbalance.
Ammonium bicarbonate, also known as ammonium bicarbonate, is suitable for a variety of crops and various types of soil without adverse effects on the soil. Can be used as top dressing or base fertilizer, but must be applied deep and immediately cover the soil to avoid ammonia volatilization and smouldering crop leaves and leaves. When making the base fertilizer, turn the ammonium bicarbonate into the ground and then flatten it. The average amount of mu is 20-25 kg. When topdressing, you should master the principle of applying soil cover immediately and watering it in time, with a depth of 7-10 cm, generally 15-20 kg per acre. Ammonium bicarbonate should not be used as a seed fertilizer. When it is necessary to use it as a seed fertilizer, it should be ditched at a distance of 7 cm away from the seed. The amount of soil after application should not exceed 5 kg. Ammonium bicarbonate cannot be applied together with an alkaline fertilizer such as plant ash or the like to avoid loss of ammonia volatilization. The packaging of ammonium bicarbonate should be strict. Prevent damage. If you have not used it, you should tie it tightly and store it in a cool place. Do not store in the same warehouse as the seed. After the carbonic acid is agglomerated, it should be used as it is.
(2) Ammonium sulfate:
Also known as ammonium sulfate, ammonium sulfate can be used in a variety of soils, most suitable for alkaline and calcareous soils. The base fertilizer is 10-20 kg per mu. Chasing depends on the growth of the crop, but pay attention to deep application of soil and watering, or before rain. Ammonium sulphate is suitable for seed fertilizer, and the average dosage is 5 kg. Fertilization should be timely watered or rained to facilitate the use of fertilizer. It is not advisable to contact or mix with alkaline substances when storing and using ammonium sulfate, so as not to reduce the fertilizer efficiency.
(3) Ammonium nitrate:
Also known as ammonium nitrate, suitable for a variety of crops and soil, suitable for topdressing, but to be applied in stages, about 10 kg per acre is appropriate, generally not used as a base fertilizer. Ammonium nitrate is flammable and should not be placed together with flammable materials during storage to avoid fire. Ammonium nitrate is easily deliquescent and should be stored in a high dry place. Do not use agglomerated ammonium nitrate to avoid an explosion.
(4) Urea containing nitrogen:
No adverse effects on crops and soil, strong hygroscopicity, should be stored in a dry place. Suitable for all kinds of soil, can be used as base fertilizer, top dressing and top dressing. Urea has a high nitrogen content, and the application rate should be reduced correspondingly to other nitrogen fertilizers. Generally, it does not exceed 10 kg per mu, and the application date should be 4-7 days earlier than other nitrogen fertilizers. In dryland application, whether it is base, top dressing, dry or wet application, it should be applied deeply. Because it does not contain harmful ingredients, it is suitable for root dressing, application concentration, food crops 1.5%-2%, cotton 0.5%-1%, vegetables 1%.
(5) Phosphate fertilizer:
Soil and crops have the effect of improving saline. When used as a base fertilizer, it can be mixed with organic fertilizer for 10-15 days, then applied in the arable land and turned into the ground. 35-50 kg per acre. When planting fertilizer, you can use ditch or hole application, and concentrate the fertilizer on the side of crop seeds, 5-10 kg per acre. In the late stage of crop growth, if phosphorus is insufficient, the root can be sprayed with phosphorus. The method is 50 kg of water plus 0.5-1 kg of superphosphate. Soak for a day and night, filter off the dregs and use. The amount of liquid used for spraying phosphorus on the root is 40-50 kg. Spraying on cloudy or evening can make crops full and promote early maturity.
(6) Compound fertilizer:
Crops have different needs for various nutrients, and the proportion of nutrients contained in compound fertilizers is fixed and cannot fully meet the needs of different soils and different crops. Therefore, fertilizers containing single elements should be supplemented.
to sum up:
The fertilizer has high nutrient content and fast fertilizer efficiency, and has the advantages of being easily absorbed by crops, convenient use and transportation, and labor saving. However, chemical fertilizers do not contain organic matter, and nutrients are single, and they cannot be fertilized. Therefore, it is necessary to supplement the application of chemical fertilizers on the basis of adding organic fertilizers, and at the same time, do not make the proportion of nitrogen, phosphorus and potassium imbalance.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
Professional Roll Forming Machine Co., Ltd. , http://www.lnformingmachine.com