摘要
连续2年田间试验及大面积示范的结果表明,在花椰菜高产优质栽培中,配施钾肥能有效地增加花椰菜生物学产量,提高净菜率而获显著增产,较习惯的氮磷配施法增产13 3%;施用商品有机肥4500kg/hm2、纯N334 5kg/hm2、P2O5108kg/hm2条件下,K2O最适配用量为180kg/hm2;在等养分条件下,施用蔬菜专用肥的增产率可达19 4%;同时,配施钾肥可以提高花椰菜的品质和商品率,增加经济效益。
The result of field experiment continuous for two-years and demonstration of big area in cauliflower showed that the best appropriate application amount of K_2O is 180 kg/hm^2 on condition that apply commercial concentrated organic fertilizer 4500 kg/hm^2, N334.5 kg/hm^2,P_2O_5 108 kg/hm^2. it's efficacious for increase biological yield and net vegetable rate thus to gain yield remarkably. Yield of cauliflower is higher by 13.3% than habitual combined N, P fertilization. And applying vegetable special fertilizer can increase production 19.4% under same nutrient condition. Combined application N, P and K fertilization can increase quality and merchandise rate or cauliflower also to increase economic benefits.
出处
《土壤肥料》
CSCD
北大核心
2004年第4期17-19,24,共4页
Soils and Fertilizers
基金
崇明县科委<花椰菜高产优质栽培技术推广>项目的研究内容之一。
关键词
钾肥
花椰菜
产量
品质
potash fertilizer
cauliflower
yield
quality
