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我们知道,植物生长发育需要多种营养元素,科学家们在植物体内发现有74种元素。可是,目前生产的化肥品种较少,含有效成分也单一。为了满足作物生育的需要,使肥料充分发挥作用,人们常把不同化肥混合起来施用。 说起肥料的混合施用,这里有很多学问,有些肥料之间是亲家,混合施用有利;有些肥料之间是冤家,混合施用有害。 所谓肥料中的亲家,就是指两种以上肥料混合后可长期贮存,并且有改善物理性状、加速养分转化、防止养分损失、提高肥效、减少对作物的副作用。 1.改善物理性状:硝酸铵和氯化钾是一对亲家,它们都易吸湿结块,特别是硝酸铵吸湿性更强,可是它们混合后发生化学反应,可变成氯化铵和硝酸钾混合肥料,因此吸湿性变小,结块性减弱,物理性状得到改善。 2.防止养分损失:氨水的氮素养分易挥发损失,然而按一定比例把它与农肥或过磷酸钙混合起来,就可以防止它的养分损失。氯化铵、氯化钾
We know that plant growth and development require a variety of nutrients, scientists found in plants with 74 kinds of elements. However, the current production of fewer varieties of fertilizers, including the active ingredient is also a single. In order to meet the needs of crop growth and fertilizers, people often mix different fertilizers for application. Speaking of mixed application of fertilizers, there are a lot of knowledge, some of the fertilizers are relatives, mixed application of favorable; some are enemies between fertilizers, mixed with harmful. The so-called pro-family fertilizer, refers to the mixture of two or more kinds of fertilizers can be long-term storage, and improve physical properties, accelerate nutrient conversion, prevent nutrient loss, improve fertilizer efficiency, reduce side effects on crops. 1 to improve physical properties: ammonium nitrate and potassium chloride is a relatives, they are easy to absorb moisture caking, especially ammonium nitrate hygroscopicity more, but they mixed chemical reaction can be changed into ammonium chloride and potassium nitrate Mixed fertilizer, so hygroscopic smaller caking property weakened, physical properties are improved. 2. Prevent Nutrient Loss: Ammonia nitrogen fertilizer is volatile, but by a certain percentage of it and agricultural fertilizer or superphosphate mixed together, we can prevent its loss of nutrients. Ammonium chloride, potassium chloride