摘要
采用微区试验连续两年研究了NPK不同用量配比及有机肥对莲藕生长、产量和养分吸收的影响。结果表明,高量NPK和较低量NPK+有机肥处理均有利于增加荷叶总面积,并显著提高莲藕产量;单施N、P或K,一般能提高莲藕中该种元素的含量,增施有机肥明显提高莲藕N、P和K的含量,莲藕对K素的吸收量较高,NPK养分吸收量之比平均约为1∶0.25∶2。
Effect of different N, P and K ratio and organic manure on the growth,yield,and nutrient uptake of root lotus （Nelumbo nucifera Gaertn）was studied in 2005-2006 by using micro-plot experiment. The result showed that both high rate of NPK and relatively low rate of NPK combined with organic manure had good effect on lotus leaf development and yield. N, P or K application helped to increase the nutrient content in root lotus, and organic manure application helped to increase the content of N, P and K in root lotus. Root lotus had a large absorption of K, the nutrients uptake ratio of N：P：K was about 1：0.25：2 on average.
出处
《湖北农业科学》
北大核心
2008年第11期1277-1279,共3页
Hubei Agricultural Sciences
基金
湖北省农业科技创新中心基金项目(2007-620-001-03)
国际植物营养研究所(IPNI)资助项目(Hubei200401)
关键词
氮磷钾配比
有机肥
莲藕
生长
产量
养分吸收
N, P and K ratio
organic manure
root lotus
growth
yield
nutrient uptake
