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液氨直接施肥在新疆自80年开始试验,到83年推广面积达4.2万亩。多年实践证明液氨施肥有成本低、增加产量等优点,而且证明,液氨施肥经济效益的大小与液氨施肥的技术有直接关系。但液氨施肥在我国还是一项新的施肥技术,国内尚无成功技术借鉴,现就我们几年来的实践体会与大家商榷。一、施肥时间1.气温与压力:液氨直接施肥通常在氨瓶具有5kg/cm~2以上就能开始施用。根据我们实践为抢农时,在昌吉地区气温在10℃左右,氨瓶压力3—4kg/cm~2也可开始施肥。最佳施肥时间为气温20℃左右,氨瓶压力8—14kg/cm~2。
Direct application of liquid ammonia in Xinjiang since 80 years of testing, 83 years to promote the area of 42,000 mu. Many years of practice proved that liquid ammonia fertilization has the advantages of low cost and increased yield, etc. Moreover, it is proved that the economic benefit of liquid ammonia fertilization is directly related to the technology of liquid ammonia fertilization. However, liquid ammonia fertilization in our country is still a new fertilization technology, there is no successful domestic technology reference, now we practice the past few years to discuss with you. First, the fertilization time 1. Temperature and pressure: direct liquid ammonia fertilizer usually ammonia bottle with 5kg / cm ~ 2 can start to apply. According to our practice of grab farming, the temperature in Changji area is about 10 ℃, ammonia bottle pressure 3-4kg / cm ~ 2 can begin to fertilize. The best fertilization time is about 20 ℃, ammonia pressure is 8-14kg / cm ~ 2.