First, avoid high-temperature ammonium phosphate placed in the open, at a temperature of 16 ° C, the nitrogen loss rate is: 1 day for 3.4%, 5 days for 10.6%, 10 days for 18%, 15 days for 26%; at the temperature of 20 In the case of °C, the nitrogen loss rate was 8.8% for 1 day, 48% for 5 days, and 77% for 15 days. At a temperature of 32°C, the nitrogen loss rate was 18.9% for 1 day. 5 It was 67.9% for days and 93.6% for 10 days. As can be seen from the above data, the higher the ambient temperature, the greater the loss of nitrogen. Ammonium bicarbonate, ammonia and other nitrogen fertilizers have poor stability. When the temperature exceeds 20°C, they are easily decomposed into ammonia gas, carbon dioxide and water, and they gradually lose their volatility. Therefore, it is advisable to spend as much as you can on fertilizers and try not to have surpluses. This should be the case in summer. The chemical fertilizer prepared for storage should be placed in a cool and dry room, and the temperature should be maintained at 10-15 °C.
Second, avoid wet ammonium nitrate, calcium and other chemical fertilizers very strong temperature absorption, when the humidity is high, the ground is wet, ammonium nitrate will be "chemical water" loss, general calcium will reduce the active ingredient. Moreover, ammonium nitrate will absorb moisture and cause explosion when the human is broken. The moisture prevention method is: store in the warehouse as much as possible. If there is no warehouse, store it in the shed or frame as much as possible and pad the bottom mat to prevent moisture and then cover it with plastic sheet or tar paper to prevent moisture absorption and reduce fertilizer efficiency. .
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