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碳酸氢铵简称碳铵,含氮17％和二氧化碳53.2％,水溶液呈碱性(PH8.2～8.4)。其化学性质不稳定,极易吸潮结块,氨易大量挥发损失,并具有一定的腐蚀性,其利用率仅25—30％。但碳铵也有许多优点。如早春低温时期它比尿素供肥迅速;土壤对碳铵中的铵离子具有强烈的吸附能力,可减少淋失;碳铵施入土壤后除产生氨、二氧化碳和水外,不会产生任何有害的残留物质.其二氧化碳还对作物的光合作用有利。另外,折纯氮的价格也比尿素低,且货源也比尿素充足,容易购得。所以,只要掌握碳铵的特性,扬长避短,就能更好地发挥其肥效。 1.水田宜施碳铵。碳铵施入土壤后,迅速离解出带正电荷的铵离子,既可供作物根系直接吸收利用。也可被土壤颗粒吸收保存,陆续供作物吸收
Ammonium bicarbonate referred to as ammonium bicarbonate, nitrogen 17% and carbon dioxide 53.2%, aqueous solution was alkaline (PH8.2 ~ 8.4). Its chemical properties are unstable, easy to absorb moisture agglomeration, easy ammonia volatilization loss, and has a certain corrosive, the utilization rate of only 25-30%. However, ammonium bicarbonate has many advantages. As early as the spring when it is more rapid than the urea fertilizer; soil ammonium bicarbonate in ammonium bicarbonate has a strong adsorption capacity, can reduce leaching; ammonium bicarbonate into the soil in addition to produce ammonia, carbon dioxide and water, will not produce any harmful Of its residual material, which also contributes to the photosynthesis of the crop. In addition, the price of pure nitrogen off than urea is low, and the supply of urea than adequate, easy to buy. Therefore, as long as the characteristics of ammonium bicarbonate to master, avoid weaknesses, we can better play its fertilizer effect. 1 paddy field should be given ammonium bicarbonate. Ammonium bicarbonate applied to the soil quickly dissociate positively charged ammonium ions, both for direct absorption and utilization of crop roots. Can also be absorbed by soil particles, one after another for crop absorption