Diammonium phosphate should not be applied too much to vegetables and vegetables. It requires a lot of nitrogen and potassium to grow, and requires less phosphorus. For example, eggplant requires a ratio of nitrogen, phosphorus, and potassium to 3:1:4, celery to 2:1:5, and cabbage to 8:1:7. The diammonium phosphate has a nitrogen to phosphorus content ratio of about 1:3 and does not contain potassium, which cannot meet the growth requirements of vegetables.
Nitrogen-containing compound fertilizer should not be applied to the leguminous crops such as soybean, mung bean, broad bean, peanut and other roots with nitrogen-fixing rhizobium. Excessive application not only causes waste, but also inhibits rhizobial activity and reduces nitrogen fixation capacity.
Rare earth micro-fertilizer should not be directly applied to the soil. It should be used as seed fertilizer or foliar sprayed with rare earth micro-fertilizer for 25-35 grams per acre, soaked in 0.05% solution, soaked for 12-24 hours. Foliar application is preferably 0.05%, 50-70 kg per acre, and can be mixed with pesticides.
Ammonium nitrogen fertilizer should not be mixed with alkaline fertilizer, ammonium bicarbonate, ammonium sulfate, ammonium nitrate, ammonium phosphate should not be mixed with plant ash, kiln ash potassium. Nitrate nitrogen should not be applied to rice fields. Nitrate ions dissociated from ammonium nitrate and sodium nitrate are easily wetted by water to the deep layers of the soil, causing denitrification and loss of nitrogen. The application of nitrate nitrogen fertilizer in dry land is also avoided. Use large water before or after applying large water.
It is not advisable to water the urea immediately after application. It is not suitable to be applied to the soil after being applied to the water and converted into amide. It is easy to be lost with water. Therefore, it should not be watered immediately after application. It should not be applied before heavy rain. The fertilizer efficiency is over 20%.
Phosphate fertilizer should not be dispersed. Phosphate fertilizer is easily absorbed and fixed by the soil, thus losing fertilizer efficiency. Many farmers' friends are accustomed to evenly apply calcium, magnesium and phosphorus fertilizers to the soil, which will cause great waste. The contact area between phosphate fertilizer and soil should be reduced. The correct method should be to first stack the calcium magnesium phosphate fertilizer and the fertilizer for about one month, then apply it or apply it near the crop.
Potassium fertilizer should not be used in the late stage of crop growth to transfer potassium from the lower stems and leaves of the crop to the top part of the crop for reuse. Potassium deficiency is more late than the symptoms of nitrogen deficiency and phosphorus deficiency. Potassium fertilizer should be applied in advance of crop seedling stage or before jointing, or one-time application of base fertilizer.
Human excrement should not be directly sprayed on vegetables. Human excrement contains a variety of pathogens. If it is used directly in vegetable fields without decomposing, it will contaminate vegetables, and it should not be used too much for fruits and potatoes. After high temperature stacking, or mixed with other fertilizers, it can be used after treatment.
Unfertilized cake fertilizer should not be directly applied to crops. The proportion of carbon and nitrogen in crop cake fertilizer is small, decomposition is fast, and high temperature is easy to occur. Application of unfermented cake fertilizer will increase local temperature, burn crop roots, or affect seed germination, and will also attract Breeding underground pests. Therefore, the cake fertilizer should be crushed and immersed in human excrement until it is heated.
Unfertilized livestock and poultry excrement should not be used as seed fertilizer or topdressing. Unfertilized livestock and poultry excrement will produce a large amount of carbon dioxide gas, so that the seeds are hypoxic and suffocated. At the same time, it ferments and decomposes in the soil to produce a large amount of heat energy, which will accelerate the soil moisture. Evaporation is not conducive to the absorption of seeds and seedlings.
Nitrogen-containing compound fertilizer should not be applied to the leguminous crops such as soybean, mung bean, broad bean, peanut and other roots with nitrogen-fixing rhizobium. Excessive application not only causes waste, but also inhibits rhizobial activity and reduces nitrogen fixation capacity.
Rare earth micro-fertilizer should not be directly applied to the soil. It should be used as seed fertilizer or foliar sprayed with rare earth micro-fertilizer for 25-35 grams per acre, soaked in 0.05% solution, soaked for 12-24 hours. Foliar application is preferably 0.05%, 50-70 kg per acre, and can be mixed with pesticides.
Ammonium nitrogen fertilizer should not be mixed with alkaline fertilizer, ammonium bicarbonate, ammonium sulfate, ammonium nitrate, ammonium phosphate should not be mixed with plant ash, kiln ash potassium. Nitrate nitrogen should not be applied to rice fields. Nitrate ions dissociated from ammonium nitrate and sodium nitrate are easily wetted by water to the deep layers of the soil, causing denitrification and loss of nitrogen. The application of nitrate nitrogen fertilizer in dry land is also avoided. Use large water before or after applying large water.
It is not advisable to water the urea immediately after application. It is not suitable to be applied to the soil after being applied to the water and converted into amide. It is easy to be lost with water. Therefore, it should not be watered immediately after application. It should not be applied before heavy rain. The fertilizer efficiency is over 20%.
Phosphate fertilizer should not be dispersed. Phosphate fertilizer is easily absorbed and fixed by the soil, thus losing fertilizer efficiency. Many farmers' friends are accustomed to evenly apply calcium, magnesium and phosphorus fertilizers to the soil, which will cause great waste. The contact area between phosphate fertilizer and soil should be reduced. The correct method should be to first stack the calcium magnesium phosphate fertilizer and the fertilizer for about one month, then apply it or apply it near the crop.
Potassium fertilizer should not be used in the late stage of crop growth to transfer potassium from the lower stems and leaves of the crop to the top part of the crop for reuse. Potassium deficiency is more late than the symptoms of nitrogen deficiency and phosphorus deficiency. Potassium fertilizer should be applied in advance of crop seedling stage or before jointing, or one-time application of base fertilizer.
Human excrement should not be directly sprayed on vegetables. Human excrement contains a variety of pathogens. If it is used directly in vegetable fields without decomposing, it will contaminate vegetables, and it should not be used too much for fruits and potatoes. After high temperature stacking, or mixed with other fertilizers, it can be used after treatment.
Unfertilized cake fertilizer should not be directly applied to crops. The proportion of carbon and nitrogen in crop cake fertilizer is small, decomposition is fast, and high temperature is easy to occur. Application of unfermented cake fertilizer will increase local temperature, burn crop roots, or affect seed germination, and will also attract Breeding underground pests. Therefore, the cake fertilizer should be crushed and immersed in human excrement until it is heated.
Unfertilized livestock and poultry excrement should not be used as seed fertilizer or topdressing. Unfertilized livestock and poultry excrement will produce a large amount of carbon dioxide gas, so that the seeds are hypoxic and suffocated. At the same time, it ferments and decomposes in the soil to produce a large amount of heat energy, which will accelerate the soil moisture. Evaporation is not conducive to the absorption of seeds and seedlings.
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