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肥料是作物的粮食。这里粗略地介绍施肥技术中应注意事项:(一)不宜表施氮肥。旱地表施,易使氮肥分解挥发,特别是碳酸氢铵挥发出的氨气可以灼伤作物苗叶,为此,应开沟深施,施后盖土。水田表施容易引起硝化、反硝化作用而损失氮素,施后应耘田,以防肥分流失。(二)不宜在温室或塑料大棚内施用氨水和碳酸氢铵。因温室和塑料大棚较密闭,气温较高,氨水和碳酸氢铵挥发性强,气温高会加速挥发出氨气,易伤作物苗叶。(三)不宜在水田施用硝态氮肥。如水稻、席草田
Fertilizer is the grain of crops. Here to roughly introduce fertilization techniques should be noted: (A) should not surface nitrogen fertilizer. Dry land surface facilities, easy to decompose and volatilize nitrogen fertilizer, in particular ammonium bicarbonate volatilized ammonia can burn crops seedling leaves, for which, should be ditching deep facilities, facilities cover the soil. Paddy field facilities easily lead to nitrification, denitrification and loss of nitrogen, Shi Yun should be applied to prevent loss of fertilizer points. (B) should not be used in greenhouses or plastic greenhouse ammonia and ammonium bicarbonate. Greenhouse and plastic shed more confined, the temperature is higher, ammonia and ammonium bicarbonate volatile, high temperature will accelerate the volatilization of ammonia, easy to hurt crop seedlings leaves. (C) should not be applied nitrate nitrogen fertilizer in paddy fields. Such as rice, grass seats field