1, urea foot easy to dissolve fertilizer, strong mobility, it is easy to cause loss. After applying urea in dry land, avoid watering immediately.
2, ammonium bicarbonate should not be applied to the surface of ten soils. The ammonium carbonate is highly volatile and easily causes burning. It is best to open a deep hole.
3. Ammonium bicarbonate should not be applied in greenhouses and greenhouses. Ammonium bicarbonate is known as "gas fertilizer" and is easily decomposed into ammonia gas and volatilized in greenhouses and greenhouses.
4, carbon nitride fertilizer should not be mixed with alkaline fertilizer. Carbonaceous ammonium nitrides such as ammonium bicarbonate, ammonium sulfate, ammonium nitrate, and ammonium phosphate encounter alkaline substances and cause nitrogen loss. It should not be mixed with alkaline fertilizer such as grass ash, kiln ash potassium fertilizer and lime nitrogen.
5. Nitrate fertilizer should not be applied in aquatic flowers. Nitrate ions dissociated from nitrates such as ammonium nitrate are easily dissolved in water to the deep layers of the soil to cause denitrification, resulting in nitrogen loss.
6. Ammonium sulfate should not be applied for a long time. Ammonium sulphate is a physiological fertilizer that is applied alone on a piece of land, which increases the acidity of the soil and destroys the physical structure of the soil.
7. Phosphate fertilizer should not be dispersed. Phosphorus has small mobility and is easily absorbed and fixed by the soil. It is best to use a ditch or a hole to concentrate the near root of the crop.
8. Potassium fertilizer should not be applied in the late stage of crops. Potassium has the characteristics of being able to be transferred from the lower base of the crop to the young part of the top, so the symptoms of potassium deficiency are later than those of nitrogen and phosphorus. Therefore, potassium fertilizer should be applied before the crop growth, or once as a base fertilizer.
9, containing chlorinated fertilizers should not be applied alone for a long time, and avoid the application of chlorine crops. Long-term application of potassium chloride alone will increase the accumulation of chloride ions in the soil, leading to the nutrient structure of the upper soil.
Destruction and soil acidification.
10. Nitrogen-containing compound fertilizer should not be used in large quantities in legume crops. Soy, peanuts, mung beans, broad beans, peas, alfalfa.
2, ammonium bicarbonate should not be applied to the surface of ten soils. The ammonium carbonate is highly volatile and easily causes burning. It is best to open a deep hole.
3. Ammonium bicarbonate should not be applied in greenhouses and greenhouses. Ammonium bicarbonate is known as "gas fertilizer" and is easily decomposed into ammonia gas and volatilized in greenhouses and greenhouses.
4, carbon nitride fertilizer should not be mixed with alkaline fertilizer. Carbonaceous ammonium nitrides such as ammonium bicarbonate, ammonium sulfate, ammonium nitrate, and ammonium phosphate encounter alkaline substances and cause nitrogen loss. It should not be mixed with alkaline fertilizer such as grass ash, kiln ash potassium fertilizer and lime nitrogen.
5. Nitrate fertilizer should not be applied in aquatic flowers. Nitrate ions dissociated from nitrates such as ammonium nitrate are easily dissolved in water to the deep layers of the soil to cause denitrification, resulting in nitrogen loss.
6. Ammonium sulfate should not be applied for a long time. Ammonium sulphate is a physiological fertilizer that is applied alone on a piece of land, which increases the acidity of the soil and destroys the physical structure of the soil.
7. Phosphate fertilizer should not be dispersed. Phosphorus has small mobility and is easily absorbed and fixed by the soil. It is best to use a ditch or a hole to concentrate the near root of the crop.
8. Potassium fertilizer should not be applied in the late stage of crops. Potassium has the characteristics of being able to be transferred from the lower base of the crop to the young part of the top, so the symptoms of potassium deficiency are later than those of nitrogen and phosphorus. Therefore, potassium fertilizer should be applied before the crop growth, or once as a base fertilizer.
9, containing chlorinated fertilizers should not be applied alone for a long time, and avoid the application of chlorine crops. Long-term application of potassium chloride alone will increase the accumulation of chloride ions in the soil, leading to the nutrient structure of the upper soil.
Destruction and soil acidification.
10. Nitrogen-containing compound fertilizer should not be used in large quantities in legume crops. Soy, peanuts, mung beans, broad beans, peas, alfalfa.
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