论文部分内容阅读
钙是蔬菜必需的矿质元素,能促进根系发育,增强新陈代谢和抗病虫害能力,消除有害物质的毒害作用。缺钙时蔬菜分生组织受害最早,影响细胞壁形成和细胞分裂,通水细胞和排水细胞解体,值株不能正常生长。疏菜是言钙作物,平均吸钙量比小麦、每1.3倍。钙素不足,会使疏菜出现缺钙症。黄瓜缺钙,叶片边缘呈现黄色;若花芽分化时得不到钙的话,果实膨大后就会形成畸
Calcium is an essential mineral element of vegetables, can promote root development, enhance metabolism and pest resistance, eliminate toxic effects of harmful substances. Calcium vegetables suffer the most early damage to meristem, affecting the formation of cell walls and cell division, water cells and water cells disintegration, the value of strains can not grow normally. Vegetables are made of calcium crops, the average amount of calcium than calcium, every 1.3 times. Lack of calcium, vegetables will cause calcium deficiency disease. Cucumber calcium deficiency, the edge of the leaves showed yellow; if the flower bud differentiation is not calcium, the fruit will be deformed after the expansion