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氮素是作物体内蛋白质的主要成分,蛋白质中一般含有16%￣18%的氮。作物的生长发育,必须依靠细胞的不断生长,而细胞进行生命活动的主要成分是蛋白质。氮元素形成的各种蛋白质在作物生命活动中发挥着多种作用:结构蛋白构成的生物膜,是多种生命过程进行的场所;酶蛋白直接影响着生理生化反应的进行;贮藏蛋白是营养物质的一种贮藏形式;氮元素参与形成的核酸是遗传信息的携带者,是细胞遗传的物质基础。因此氮素在植物体内的含量,直接影响到植物的生长发育。如果氮素不足,作物体内新细胞的形成将受到抑制,作物的生长和发育就会减缓或停滞,同时,缺氮还会引起叶绿素含量降低,
Nitrogen is the main component of the body of the body of the protein, the protein generally contains 16% ~ 18% of nitrogen. Crop growth and development, we must rely on the continuous growth of cells, and cells of the main components of life activities are proteins. Various proteins formed by nitrogen element play a variety of roles in the life activities of crops: the biofilm formed by structural proteins is a place where various life processes are carried out; the enzyme proteins directly affect the progress of physiological and biochemical reactions; the storage proteins are nutrients Of the storage form; the nitrogen involved in the formation of nucleic acid is a carrier of genetic information is the material basis of cytogenetics. Therefore, the content of nitrogen in plants, a direct impact on plant growth and development. If the nitrogen deficiency, the formation of new cells in the crop will be inhibited, the growth and development of crops will slow or stagnant, at the same time, nitrogen deficiency can cause chlorophyll content decreased,