麦垅移栽棉高产栽培优化方案研究  

Studies on optimization plan in high-yielding cultivation of cotton planted in wheat-cotton transplantation

作　　者：王海潮[1] 左田夫[1] 唐保善[1] 杨安民[1] 夏志明[1] 刘漫道[1] 

机构地区：[1]西北农林科技大学农学院,陕西杨陵712100

出　　处：《河南农业大学学报》2001年第3期211-215,共5页Journal of Henan Agricultural University

基　　金："九五"农业部第一批优质棉基地科技服务项目 ( 990 9-14 4 8)

摘　　要：选用不同棉花品种 ,采取春育夏栽措施 ,开设单因子和多因子综合试验结果表明 ,麦垅移栽棉花中棉 19号具有较高的增产潜力和效益 .苗龄和移栽时间是决定皮棉产量的主要因素 ,密度为次 .在收获 5 796kg·hm-2 小麦的情况下 ,皮棉产量≥ 10 5 0kg·hm-2 农艺措施优化方案取值范围X1为 5 1～ 45d ;X2 为 0 5 - 15～ 2 0 ;X3 为 76d× 110～ 6 8h× 93mm ;X4 为 72 833～ 7940 6株·hm-2 .同中棉 16号相比 ,密度和移栽时间是中棉 16号产量构成的主要因素 ,在同等产量水平下 ,不仅中棉 19号是中棉 16号高产措施优化组合方案的 1倍多 ,而且育苗移栽株数减少近 5 0 % 。Single factor and multi factor comprehensive experiments were conducted by selecting different cotton variety and taking measures of spring cultivation and summer transplantation.The results showed that transplated cotton Zhong mian No.19 in wheat cotton transplantation has higher yield increasing potential and benefit.Seedling stage and transplanting date are the main factors determining cotton yield,followed by density,among all agronomic measures and factors.When wheat yield is 5 796 kg·hm -2 and cotton output is 1 050 kg·hm -2 ,the optimization plan of agronomic measures are as follows: X 1 ranges from 51～45 d, X 2 from 15th～20th in May, X 3 from 76×100～68×93 and X 4 from 72 833～94 406 plants·hm -2 .Compared with Zhongmian No.16,density and transplanting date are the main factors affecting yield.When the yields of the two variety are the same,the optimization plan of high yield agronomic measures for Zhongmian No.16 is twice as much as that of Zhang mian No.19,and the number of seedling plants transplanted is reduced by nearly a half,which is wery good for lange scale diffusion.

关 键 词：棉花 小麦 优化组合 移栽 栽培优化方案 

分 类 号：S512.1[农业科学—作物学]