1. Avoid high-temperature ammonium phosphate in the open air. At a temperature of 16 °C, the nitrogen loss rate is 3.4% for 1 day, 10.6% for 5 days, 18% for 10 days, and 26% for 15 days. In the case of °C, the nitrogen loss rate was 18.9% for 1 day, 67.9% for 5 days, and 93.6% for 10 days. It can be seen from the above data that the higher the ambient temperature, the greater the loss of nitrogen. Nitrogen fertilizers such as ammonium bicarbonate and ammonia water have poor stability. When the temperature exceeds 20 °C, they are easily decomposed into ammonia, carbon dioxide and water, and are gradually lost. Therefore, it is best to buy more fertilizers, try not to have surplus, and summer should be more so. The prepared fertilizer should be placed in a cool and dry room, and the temperature should be kept at 10-15 °C.
Second, avoid moist ammonia, calcium and other chemical fertilizers are very strong, when the air humidity is high, the ground is wet, ammonium nitrate will "water" loss, calcium will reduce the active ingredients. Moreover, ammonium nitrate will also absorb moisture and agglomerate, and explosion will occur when the human is broken. The method of moisture protection is as follows: store in the warehouse as much as possible. If there is no warehouse, try to store it in the shed and frame, and pad the bottom pad, and protect it from moisture. Then cover it with plastic cloth or linoleum paper to prevent moisture absorption and reduce fertilizer efficiency. .
Huaxian County Agricultural Products Inspection and Testing Center Chang Bili
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