施肥对叶用银杏生长及叶产量的影响  

The effects of fertilizer on growth and leaf yield in Ginkgo leaf producing plantation

作　　者：谢友超[1] 曹福亮[2] 李荣锦[1] 张往祥[2] 仇才楼 陈万章 

机构地区：[1]江苏省农林厅林业局,江苏南京210013 [2]南京林业大学,江苏南京210037 [3]江苏省沿海防风林试验站,江苏射阳224300

出　　处：《江苏林业科技》2000年第6期9-12,共4页Journal of Jiangsu Forestry Science & Technology

摘　　要：通过对沿海盐碱地上生长的 5年生叶用银杏实生苗施用N、P、K、NP、NK、PK和NPK等 7组肥料试验结果表明 ,施肥对苗高高峰期的生长有明显的促进作用 ,其中用N、P等部分处理全年苗高生长量较大 ;所有施肥处理叶产量的增加值均大于对照 ,但以N肥效果最好。因此 。The multiple test studies,involving seven kinds of fertilizer,with each fertilizer in three different levels,proceeded in 1999 on 5 year old Ginkgo seedlings at salt field.The main results showed as follows:the seedling height growth could be advanced apparently by fertilizing before June 15,but only the annual height growths of some treatments such as fertilizer N (urea) and fertilizer P (calcium phosphate) were larger than CKs.The leaf yield enhancements with all fertilizer treatments were more than CKs throughout the year,but the fertilizer N (urea) efficiency was best and fertilizer K (KCL) efficiency was worst.So the fertilizer N(urea),fertilizer P (calcium phosphate) or the middle level of fertilizer NPK (urea,calcium phosphat and KCL) could be used in Ginkgo leaf producing plantation at salt field.

关 键 词：银杏叶用园 施肥 单株叶产量 沿海盐碱地 生长 

分 类 号：S567.190.6[农业科学—中草药栽培] S792.950.5[农业科学—作物学]