The Study On High-yield Cultivation Technology Of Short-season Cotton After Wheat In Northern Anhui Province

Stubble short season cotton high yield technique is an effective way to alleviate cotton planting area is reducing year by year,varieties and planting densities were the important factors influencing the short season cotton yield and quality.In order to study the stubble short season cotton productive technology,2012,2013 for two consecutive years in fuyang city academy of agricultural sciences tested experiment research,the main test and the results were as follows:1.Different varieties (or lines) stubble short season cotton comparison test:Testing varieties(or lines) with 10.CRI50, N300 respectively,1226,1476,Chao zao 3,1301,1062,1257,0910 and 1011,the test results show that under the same planting density,Chao zao 3 stages of the shortest 97d,the other is above 100,N300 lint supreme,Chao zao 3 seed cotton yield the highest,1062 lint yields the highest,CRI50 comprehensive performance is good,considering comprehensive factors,CRI50 by suitable for planting in northern Anhui province.2.Different planting density on the stubble in the short season cotton CRI50 production by the impact:This experiment selected varieties of CRI50,Ⅰ:3500 plants/667m2; II:4000 plants/667m2Ⅲ:4500 plants/667m2;IV5000 plants/667m2; V:5500 plants/667m2;VI:6000 plants/667m2;VII:6500 plants/667m2;8 density processing of 7000 plants/667m2.The results showed that from 3500 plants/667m2 to 7000 plants/667m2,branch number, the number of strains of the bell, the single boll weight,lint is gradually reduce with the increase of density.With the increase of planting density, production decline after rising first,with the highest total of 6000 plants/667m2 production outputConsidering comprehensive factors,The CRI50 in fuyang city of cotton by planting density of 6000 plants/667m2 with more appropriate.3.Different planting density on the stubble short season cotton Chao zao 3 production:Strains were used in this study for Chao zao 3,Ⅰ:4500 plants/667m2; Ⅱ:5000 plants/667m2;Ⅲ:5500plants/667m2;IV:6000plants/667m2;V:6500plants/667m2;Ⅴ: 7000 plants/667m2; Ⅶ:7500 plants/667m2;8 density of Ⅷ8000 plants/667m2.Results show that with the increase of density exceeds Chao zao 3 production increasing trend on the whole,8000 plants/667m2 production is the highest.