摘要
在甘肃省河西走廊的盐化潮土上,进行了甜菜多功能专用肥配方筛选及经济效益最佳施用量的研究。结果表明:甜菜多功能专用肥配方组合为:有机碳肥0.9375∶保水剂0.0025∶甜菜专用肥0.0563∶聚乙烯醇0.0037。甜菜多功能专用肥施用量(x)与甜菜块根产量(y)间的肥料效应回归方程为:y=72.79+1.843x-0.0217x2,经济效益最佳施用量为24.08t/hm^2,块根理论产量为104.60t/hm^2。施用甜菜多功能专用肥与传统化肥比较,甜菜叶丛高度、叶丛鲜重、根体长度、根直径、单根重和根产量分别增加6.52%、6.40%、6.42%、6.66%、5.00%和5.27%,施肥利润和肥料投资效率分别增加0.23万元/hm^2和0.42元/元。
The formula selection of multi-functional special fertilizer of sugar beet and application rate for optimum economic benefits were studied in salinization moisture soil of the Hexi corridor.The results showed that the formula of multi-functional fertilizer of sugar beet was：organic carbon fertilizer 0.9375：aquasorb 0.0025：beet specific fertilizer 0.0563：POVAL 0.0037.The regression equation of multi-functional special fertilizer（x） and root yield of sugar beet（y） was：y = 72.79 ＋ 1.843 x-0.0217 x^2.The theoretical root yield of sugar beet was104.60 t/ha when fertilizer application rate for optimum economic benefit was 24.08 t/ha.Compared with traditional fertilizer, the plant height, fresh plant weight, root length, root diameter, single root weight and root yield of sugar beet increased by 6.52%, 6.40%, 6.41%, 6.40%, 5.00% and 5.27%, respectively; fertilization profit and investment efficiency increased by 2300 yuan/ha and 0.42 yuan/yuan.
出处
《中国糖料》
2017年第2期24-27,共4页
Sugar Crops of China
基金
甘肃科技支撑计划农业类(144NKCA241)
关键词
甜菜
多功能专用肥
配方
经济效益最佳施用量
beet
multi-functional special fertilizer
formula
application rate for optimum economic benefits
