1. Unfertilized farmyard manure and cake fertilizer should not be used directly. The farmyard manure and cake fertilizer should be fully piled up and decomposed, and then used after high temperature disinfection or chemical treatment.
Second, chlorine-containing fertilizers should not be used in saline-alkali soils and bogey-free crops. Avoid chlorine crops such as tobacco, fruit, sugar beets, potatoes, watermelons, etc.
Third, nitrogen fertilizer should not be applied before shallow application or watering. Nitrogen fertilizers are generally converted to ammonium nitrogen after being applied to the soil, which is easily lost with water or volatilized by light and heat, and loses fertilizer efficiency.
4. Ammonium nitrogen fertilizer should not be mixed with alkaline fertilizer such as grass ash.
5. Nitrogen fertilizer should not be applied to legumes. There are nitrogen-fixing rhizobium in the roots of legumes. Excessive application of nitrogen fertilizer will not only cause waste, but also make the crops more mature and affect the yield.
6. Phosphate fertilizer should not be dispersed. The phosphorus element in the phosphate fertilizer is easily absorbed and fixed by the soil, and the fertilizer effect is lost. The phosphate fertilizer and the fertilizer should be mixed and piled up for a period of time, and then the ditch or the hole is applied near the root of the crop.
7. Fertilizers with higher phosphorus content should not be used more for vegetables.
8. Potassium fertilizer should not be used in the late stage of crop growth.
9. Rare earth fertilizers should not be applied directly to the soil.
10. It is not advisable to indiscriminately apply fertilizers regardless of crop varieties and growth periods.
Second, chlorine-containing fertilizers should not be used in saline-alkali soils and bogey-free crops. Avoid chlorine crops such as tobacco, fruit, sugar beets, potatoes, watermelons, etc.
Third, nitrogen fertilizer should not be applied before shallow application or watering. Nitrogen fertilizers are generally converted to ammonium nitrogen after being applied to the soil, which is easily lost with water or volatilized by light and heat, and loses fertilizer efficiency.
4. Ammonium nitrogen fertilizer should not be mixed with alkaline fertilizer such as grass ash.
5. Nitrogen fertilizer should not be applied to legumes. There are nitrogen-fixing rhizobium in the roots of legumes. Excessive application of nitrogen fertilizer will not only cause waste, but also make the crops more mature and affect the yield.
6. Phosphate fertilizer should not be dispersed. The phosphorus element in the phosphate fertilizer is easily absorbed and fixed by the soil, and the fertilizer effect is lost. The phosphate fertilizer and the fertilizer should be mixed and piled up for a period of time, and then the ditch or the hole is applied near the root of the crop.
7. Fertilizers with higher phosphorus content should not be used more for vegetables.
8. Potassium fertilizer should not be used in the late stage of crop growth.
9. Rare earth fertilizers should not be applied directly to the soil.
10. It is not advisable to indiscriminately apply fertilizers regardless of crop varieties and growth periods.
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