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叶片施肥法经常用于克服园艺植物和农作物的特殊营养缺乏症,以促进生长和提高产量。虽然叶片施肥法成本高,不及土壤施肥普遍,但在某些情况下仍可作为一种施肥方法。本工作研究:(1)测定玉米花期前、后喷施尿素 N(富~(15)N)后整个地上部和各部分的利用率;(2)测定籽粒发育中植株各部位标记尿素 N 的分市与迁移。
Leaf fertilization is often used to overcome specific nutritional deficiencies in horticultural plants and crops to promote growth and increase yield. Although leaf fertilization is costly and less common than soil fertilization, it can still be used as a fertilization method in some cases. The research work is as follows: (1) To determine the utilization rate of whole shoots and parts after sprayed with urea N (rich ~ (15) N) before and after the flowering stage of popcorn; (2) City and relocation.