摘要
研究了柱花草热研2号、热研10号、热研13号枝条、叶片等构件数量对不同N、P、K施量的响应。结果表明,随着施氮量的增加,柱花草叶片数、一级枝条数二级枝条数均逐步增加,叶片数在施氮量达到1g/盆或1.5g/盆时达到最大值;一级枝条在施氮量1.5g/盆或2g/盆时达到最大值,二级枝条在施氮量1g/盆或1.5g/盆时达到最大值。施磷可以促进叶片数量增加(P<0.05),当施磷量为2g/盆时叶片数量达到最多。当施磷量>2g/盆时,对一、二级枝条数量有促进作用。钾肥对柱花草叶片、枝条数量均具有促进作用,柱花草叶片数量和枝条数量均在施钾量为0.75g/盆时达到最大值。
The response of module leaf and branch of three varieties of Stylosanthes guianensias cv.Reyan 2,Reyan 10 and Reyan 13 to different concentration of N,P and K were studied.The results showed that with increasing of the application rates of nitrogen fertilizer,the number of leaf,first branch,and second branch increased,and reached maximum at the rate of 1.5g/pot N.The module leaf could be facilitated by fertilizer P（P0.05） and its number reached maximum at the rate of 2 g/pot P.The first and second branch number reached maximum while the concentrate of P was over 2 g/pot.The number of module leaf and branch was facilitated by fertilizer K,the leaf and branch number reached maximum at the concentrate 2g/pot K.
出处
《中国草地学报》
CSCD
北大核心
2012年第6期32-35,共4页
Chinese Journal of Grassland
基金
广东省自然科学基金(9151022501000013)
广东省科技计划(2007A020300002-7)
关键词
施肥浓度
柱花草
构件
空间分布
Fertilizer concentration
Stylosanthes guianensias
Module
Space distribution
