辽宁省马铃薯高效复种栽培技术

经过多年试验示范,针对辽宁省气候特点,总结出马铃薯高效复种栽培模式,筛选出各主产区的适宜品种和相应种植密度,为辽宁省马铃薯科学种植提供依据。马铃薯的三膜覆盖极早熟栽培技术比较适合葫芦岛地区和大连地区应用,下茬复种小西瓜等经济效益较高的作物。马铃薯双膜覆盖栽培技术可克服前期低温的不利影响,缓解晚霜冻害,比常规地膜覆盖提前收获15 d以上,其鲜薯价格高,效益可观,为下茬复种粮食和油料作物高产创造条件,比较适合在辽西和辽南的大部分地区应用。马铃薯单膜覆盖栽培技术适用于辽宁大部分地区,下茬可复种蔬菜、粘(甜)玉米等作物。

High Benefit Cultivation Technology of Potato in Multiple Cropping System in Liaoning Province

Based on experimentation and demonstration,and local climate features,high yield and high benefit cultivation models in a two cropping system are put forward,in which the suitable cultivars and plant density are identified,which may lay out scientific foundation for growing potatoes.Three-layer film coverage and early maturing cultivation technique is suitable for Huludao and Dalian,and the succeeding crop such as water melon gave high economic return.Double-film coverage could overcome the adverse effect of low temperature in early growing season,prevent potato from damage of late frost,and advance 15 days for harvest of potatoes as compared with conventional plastic coverage,therefore potatoes harvested could be marketed at high price and enough time is left for succeeding food or oil crops.This model is suitable for western and southern Liaoning.Single plastic film coverage is suitable for most parts of Liaoning,and vegetable and waxy(sweet) corn could be the succeeding crop of potato.