摘要
安塞试验站2005-2006连续两年采用N、P、K三因素最优设计，田试不同施肥量对南瓜Vc和干物质两项营养品质的影响，探讨南瓜优质的N、P、K肥效反应模式。结果表明，N肥对南瓜Vc含量的影响最大，K肥对干物质含量的影响最大，N与P交互作用和N与K交互作用对南瓜Vc、干物质含量影响显著。筛选出南瓜优质的较佳施肥量为：施氮90～95kg／hm^2，施磷75～80kg／hm^2，施钾25～30kg／hm^2。N：P2O5：K2O=1．00：0．83：0．28.
The experiment for optimum design of N, P and K fertilization model was conducted to study the influence of different fertilization rate to pumpkin dry matter quality and Vc content. The results showed that N had significant effect on Vc content of pumpkin, and P had significant effect on the content of dry matter, while the influence of N and P, N and K correlation to pumpkin dry matter and Vc content was remarkable. The optimum amount of N, P, and K fertilization was nitrogen N 90-95 kg/hm^2, phosphorous P2O5 75 - 80 kg/hm^2 and potassium 25 - 30 kg/hm^2. The N ： P2O5 ： K proportion was 1 ： 0.83 ： 0.28 .
出处
《干旱地区农业研究》
CSCD
北大核心
2008年第3期86-89,108,共5页
Agricultural Research in the Arid Areas
基金
中国科学院知识创新项目(KZCX2-XB2-05-01)
国家科技支撑项目(2006BAD09B07)
中国科学院水土保持研究所领域前沿项目(SW04302)
关键词
南瓜
氮
磷
钾
品质
施肥模式
pumpkin
N
P
K
quality
fertilizing model
