庄浪南坪乡玉米栽培试验优化方案

The Optimization Scheme of Corn Cultivation in NanPing of Zhuanglang County

覆膜时期及方式的选择对玉米的产量有很大影响,为得到玉米栽培试验的最优方案,开展秋覆膜、顶凌覆膜、春覆膜、早春揭膜覆膜、全膜二膜、以半膜(CK)为对照方式等六种不同覆膜时间及方式下对玉米产量的研究,结果显示,以早春接膜覆新膜增收增产最明显,亩产量901.2 kg,亩纯收入为1 537.4元,投产比为3.2,比半膜(CK)亩产量高出224.1 kg,亩纯收入高出495.2元,半膜的产投比仅为1.8,因此,在秋覆膜全膜双垄沟播技术的基础上,提倡早春揭膜覆新膜。

The choice of the mulched period and the ways have great influence on the yield of corn,to get the best way of corn cultivation,the paper carried out the studied work by six different coated time and ways,these are autumn plastic-film mulching,top plastic-film mulching,spring plastic-film mulching,early spring open the plastic-film and mulch new film,the second plastic-film mulching,and half a membrane mulching as control(CK).The results show that the fourth way are most income,yield per mu is 901.2kg,mu net income is 1 537.4 yuan,and put into production ratio is 3.2,more than half a membrane coating(CK) per mu yield by 224.1 kg,mu net income by 495.2 yuan,put into production ratio of half a membrane coating(CK) is just only 1.8.Therefore,on the basis of the technical of planting in furrow and whole plastic-film mulching on double ridges,we advocate the fourth way.