幼龄苹果园间作马铃薯互作效应研究  

The interaction effect of potato intercropping in young apple orchard

作　　者：张彪 ZHANG Biao(Pingliang Academy of Agricultural Sciences,Pingliang 744000,Gansu,China)

机构地区：[1]平凉市农业科学院,甘肃平凉744000

出　　处：《湖北农业科学》2020年第10期29-31,104,共4页Hubei Agricultural Sciences

摘　　要：以二年生和三年生苹果树为试材,设置2种营养带宽度(1.9、2.5 m),通过两因素交互试验,研究幼龄果园在不同间作模式下苹果树与马铃薯的互作效应。结果表明,对二年生苹果树来说,不同营养带宽度对苹果树的生长无显著影响,但对马铃薯产量有显著影响,苹果树营养带宽度为1.9 m时,马铃薯产量极显著高于营养带宽度为2.5 m的,因而二年生果园优选的马铃薯间作密度为0.70 m×0.35 m。对三年生苹果树来说,营养带宽度为1.9 m时,马铃薯产量显著高于营养带宽度为2.5 m的,但苹果树的株高、主干直径和分枝数显著小于营养带宽度为2.5 m的,幼龄苹果园间作马铃薯需要保证苹果树的生长,因而三年生苹果树优选的马铃薯间作密度为0.50 m×0.35 m。Two and three-year-old apple trees were used as the test materials,and the two kinds of width of nutrition zone(1.9 and 2.5 m)was set up.Through the interaction test of two factors,the interaction effect of fruit trees and potatoes in different intercropping modes of young orchard was studied.The results showed that for 2-year-old fruit trees,different width of nutrition zone had no significant effect on the growth of fruit trees,but had significant effect on potato yield,when the width of nutrition zone was 1.9 m,the yield of potato was significantly higher than that of 2.5 m.Therefore,the optimum intercropping density for 2-year-old orchard was 0.70 m×0.35 m.For 3-year-old fruit trees,when the width of nutrition zone was 1.9 m,the yield of potato was significantly higher than that of 2.5 m,but the plant height,trunk diameter and branching number of fruit tree were significantly smaller than that of 2.5 m.Potato intercropping in young orchard needs to ensure the growth of fruit trees.Therefore,intercropping potatoes in 3-year-old apple orchard,the best intercropping density was 0.50 m×0.35 m.

关 键 词：幼龄苹果园 间作 马铃薯 营养带宽度 互作效应 

分 类 号：S661.1[农业科学—果树学]