论文部分内容阅读
目前,氨水是广大农村施用量大、施用范围广泛的速效氮肥之一。约占总施氮肥量的30％左右。我区每年生产氨水11,000吨,另外还需从北京、天津购进氨水,用于大田生产。氨水是一种液态氮肥,含氮17％左右,碱性,施入土壤后不遗留任何残余物,适于各种土壤和作物。但是氨水易分解放出氨气,肥效降低。有些社队施用氨水后增产不明显,其主要原因是保存、施用不当,氮素损失大。为充分发挥氨水的增产效益,我们对氨水不同存放条件和施用方法进行了试验。
At present, ammonia is one of the quick-acting nitrogen fertilizers widely applied in a wide range of rural areas and widely used. About 30% of the total amount of nitrogen fertilizer. Our district produces 11,000 tons of ammonia annually, and also purchases ammonia from Beijing and Tianjin for field production. Ammonia is a liquid nitrogen fertilizer, about 17% nitrogen, alkaline, applied to the soil without leaving any residue, suitable for a variety of soil and crops. However, ammonia is easy to decompose and emit ammonia, reducing fertilizer efficiency. Some community teams after the application of ammonia production is not obvious, the main reason is the preservation, improper application, nitrogen loss. In order to give full play to ammonia production efficiency, we have different ammonia storage conditions and application methods were tested.