论文部分内容阅读
一、氮肥氮是咖啡营养生长时期必不可少的养分。施足氮肥可使咖啡生势旺盛,产量增加。氮对蛋白质形成具重要意义,而且是光合作用中制造有机物质的叶绿素的主要组分。由此可见,正确施用氮肥或氮磷钾复合肥能促进叶片和新结果枝的茁壮生长。只要适当进行修枝,就能避免因叶量与产量比率不当造成的结实过多,保证提高咖啡产量和改善咖啡质量。 1.氮肥的种类和施用量常用的氮肥有:硫硝酸铵、硝酸铵钙、硫酸铵和尿
First, nitrogen Nitrogen is essential nutrients during the vegetative period of coffee. Shi adequate nitrogen fertilizer can make coffee raw potential, production increased. Nitrogen is important for protein formation and is a major component of chlorophyll for making organic matter during photosynthesis. Thus, the correct application of nitrogen fertilizer or nitrogen, phosphorus, potassium fertilizer can promote the robust growth of leaves and new fruiting branches. As long as proper pruning, to avoid due to the ratio of leaf yield to yield too much, to ensure increased coffee production and improve coffee quality. 1. Types and application of nitrogen fertilizer Nitrogen commonly used are: ammonium sulfate, calcium ammonium nitrate, ammonium sulfate and urine