摘要
在磷、钾素含量较高的黄红壤上研究了连续施用磷钾肥对油菜产量、养分吸收和经济效益的影响。结果表明：施用磷钾肥，可以显著提高油菜产量，增产幅度达45．3％-180％，磷肥效应起主导作用。连续施用磷钾肥有利于养分的协调供应，提高了油菜植株的养分含量和养分吸收量。磷钾肥的施用还能大幅度提高经济效益，三季油菜纯利润平均增加了I372．8-1851．1元／hm^2。
Effect of continuous application of phosphorus and potassium fertilizer on rapeseed yield and nutrient uptake in yellow - red soil with high available P and available K was studied. The results indicated that application of P and K fertilizer can notably increase rapeseed yield by 45.3% - 180%. The yield response to P plays a leading role. Continuous application of P and K fertilizer were beneficial to provide balanced nutrient, increased nutrient content and nutrient uptake in rapeseed. Application of P and K fertilizer could raise net income of rapeseed production substantially. The average net income in the three seasons was increased by 1 372. 8 - 1 851. 1 yuan/hm^2.
出处
《中国油料作物学报》
CAS
CSCD
北大核心
2006年第2期180-183,共4页
Chinese Journal of Oil Crop Sciences
基金
安徽省"九五"科技攻关项目(99110062)
关键词
油菜
磷肥
钾肥
产量
养分
Rapeseed
P fertilizer
K fertilizer
Yield
Nutrient
