冀东地区马铃薯玉米大白菜高效立体复种栽培模式

为了提高冀东地区种植业的经济效益,在马铃薯玉米传统栽培模式的基础上,进行了冀东地区马铃薯玉米大白菜高效立体复种栽培模式试验。马铃薯选用中熟品种,高垄地膜覆盖栽培;玉米选用生育期较短的中熟品种,减少与大白菜的共生期;秋大白菜采用育苗移栽方式,播期提前。该模式中马铃薯产量达37 618.01 kg/hm^2,玉米产量达7 493.83 kg/hm^2,大白菜产量达114 640.63 kg/hm^2,三茬作物总产值62 119元/hm^2,纯效益48 769元/hm^2。比露地马铃薯玉米传统栽培模式纯效益增加37 757元/hm^2,比地膜马铃薯玉米栽培模式纯效益增加26 219元/hm^2,经济效益显著提高。

Research on the Highly Effective Three-dimensional Compoundable Cultivation Pattern of Potato,Corn and Chinese Cabbage in East Hebei Province

A highly effective cultivation pattern was studied on the basis of traditional patterns.Middle-ripe varieties of potato were selected and cultivated in high ridge with plastic mulching.Varieties of short growth period of corn were cultivated so as to shorten the common growing time with Chinese cabbage.Chinese cabbages were cultivated in the way of transplanting pattern.The results showed that under this pattern,the potato's average output was 37 618.01 kg/hm2,corn 7 493.83 kg/hm2,Chinese cabbage 114 640.63...