全膜覆盖双垄沟播马铃薯密度试验  

An experiment on Density of Potato under Condition of Film Whole-mulching and Double Furrow Sowing Technology

作　　者：王晓煜[1] 郭忠富[1] 王永成[1] 兰小龙[1] 

机构地区：[1]宁夏固原市原州区农业技术推广中心,宁夏固原756000

出　　处：《宁夏农林科技》2013年第12期9-10,共2页Journal of Ningxia Agriculture and Forestry Science and Technology

摘　　要：在宁南山区全膜覆盖栽培条件下，以晋薯7号马铃薯品种为供试材料，种植密度37500～75000株／hm2，对马铃薯生物学性状、产量进行分析。结果表明：株高、单株结薯数、单株薯重、单株大中薯率随着种植密度的增加逐渐降低；单株小薯数随着密度的增加而增多。当密度达到60000株／hm2时产量最高，增产达24％，效益最好；随着密度的增加产量虽有所增加，但增产不增收。Under the condition of film whole-mulching cultivation in Southern Mountainous Area of Ningxia and with the potato variety of Jinshu no.7 as the tested materials, an experiment was made with the planting densities of 37 500-75 000 plants/hm2. The biological characters and yield were analyzed adopting random permutation. The result showed that the plant height decreased gradually with the increase of the density, the tuber number per plant, tuber weight per plant, large tuber per plant and large and medium tuber rate decreased with the increase of the density and the small tuber per plant increased with the increase of the density. When the density reached 60 000 plants/hm2 the yield was the highest, the yield increase rate reached 24% and the benefit was the best. Ahhough the yield increased somehow with the increase of the density but the income was not increased.

关 键 词：旱作雨养区 全膜覆盖 马铃薯 密度 

分 类 号：S532[农业科学—作物学]