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作 者:刘剑斌
机构地区:[1]建阳市林业局,福建建阳350002
出 处:《西南林业大学学报(自然科学)》2013年第4期35-38,共4页Journal of Southwest Forestry University:Natural Sciences
基 金:福建省自然科学基金项目(2007J0323)资助;南平市科技局专项基金项目(IV2009244)资助
摘 要:为科学地制定施肥措施,全面改善千年桐幼林的营养状态,使主要养分元素N、P、K达到理想的平衡状态,采用单形格子设计,应用诊断施肥综合法(DRIS)对千年桐苗木N、P、K 3种元素进行营养诊断,结果表明:苗木养分含量适宜的P/N为0.6922、N/K为0.9369、K/P为1.5419;处理E7为较理想的施肥方案,即氮肥(尿素)126 g/株,磷肥(过磷酸钙)236 g/株,钾肥(硫酸钾)138 g/株。The nitrogen ( N), phosphorous (P) and potassium (K) nutrition montana seedlings by means of applying diagnosis and recommendation integrated diagnoses were made for Aleurites system (DRIS) with simplex lat- tice design to formulate scientific fertilization measures, to balance the N, P, K nutrition elements and overall im- prove the nutrition status of A. montana young plantation. The results showed that the most suitable nutrition pro- portions for A. montana seedlings were P/N equals 0. 692 2, N/K equals 0. 936 9, K/P equals 1. 541 9. It was showed that combination E7 was an ideal fertilization plan, namely, 126 g of N fertilizer (urea) per plant, 236 g of P fertilizer (calcium superphosphate) per plant, and 138 g of K fertilizer (potassium sulfate) for each plant.
分 类 号:S723.1[农业科学—林木遗传育种]
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