摘要
毛竹林４年定位（定点、定株、定时）的试验研究表明，竹叶、竹根和根间土的Ｎ、Ｐ、Ｋ浓度均存在季节、年度的变化，并与竹林生长特点和产量有密切关系。叶和根中的养分随其年龄增加而减少，叶龄相同者养分浓度基本相似。孕笋期土壤和竹叶中磷的作用大于氮，出笋期土壤水解氮的含量与出笋、成竹数的关系密切。从而，为营养诊断和合理施肥提供了基础理论依据。
The research was conducted in 1989～1993 in Longhu Forest Farm of
ShaowuCity, Fujian Province. The randomized blocks design included eleven treatments and
threerepetitions. The main results were as follows :(1)The nutrient content in the
leaves,rootsand soil changes with different season or year,which is closely related to the
growth charac-teristics and yield of bamboo forest;(2)The content of N,P and K in the leaves and
roots re-duces with the increase of their age. There were similar nutrient contents in the leaves
of thesame age;(3 )In the shooting stage,the order of importance of N,P, K in leaves and
soilswere P>N,but in spring the soil hydrolysable N was closely related to the output Qf
shootsand clums. This study provides some theoretical basis for nutrient diagnosis and
reasonablefertilization.
出处
《林业科学研究》
CSCD
北大核心
1995年第5期477-482,共6页
Forest Research
关键词
毛竹
养分动态
产量
Phyllostachys pubescens, nutrition dynamics,yield Zhang
xianyi,Professor,Chen Jinlin (Nanjing Forestry University Nanjing 210037 )
Ye
Changqing,Liang Wenyan(Forestry Committee of Shaowu City,Fujian Province)
Zhang Bisong,Li
Qipeng(Longhu Forest Farm
