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,2008年进行了翼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每公顷达37 618. 01kg,玉米产量每公顷达7 493.83 kg,大白菜产量每公顷达114 640.63 kg,三茬作物每公顷总产值62 119元.每公顷纯效益 48769元.比露地马铃薯玉米传统栽培模式每公顷纯效益增加37 757元,比地膜马铃薯玉米栽培模式每公顷纯效益增加26 219元,经济效益显著提高.

Model on the Highly Effective and Three-dimensional Compoundable Cultivation of Potato,Corn and Chinese Cabbages in the East of Hebei Province

A high effective cultivation pattern was studied on the basis of traditional patterns.The varieties of potato with middle growth period were selected and planted in high ridge with plastic mulching in 2008,the varieties of short growth period of corn were selected to shorten the common growing time with Chinese cabbages;The Chinese cabbages were planted in the way of transplanting pattern.Under this pattern,the potato's average output was 37 618.01kg.hm-2,the corn was 7 493.83 kg.hm-2,the Chinese cabbage wa...