中棉所50在鄂东棉区的适宜播期和种植密度探究  

Study on Suitable Sowing Date and Planting Density of the Cotton Variety CCRI 50 in East Hubei Cotton Region

作　　者：闫振华[1] 赵树琪[1] 张华崇 戴宝生[1] 黄晓莉[1] 李蔚[1] 

机构地区：[1]黄冈市农业科学院,湖北黄冈438000

出　　处：《湖北农业科学》2017年第22期4230-4233,共4页Hubei Agricultural Sciences

基　　金：国家棉花产业技术体系专项资金资助项目(CARS-18-41);湖北省农业科技创新中心资助项目(2017-620-001-03)

摘　　要：为了确定棉花(Gossypium hirsutum L.)品种中棉所50在鄂东棉区的适宜播期和种植密度,分别设置6个播期和6个密度进行试验。结果表明,不同播期和种植密度对短季棉中棉所50农艺性状和产量性状均有不同程度的影响。为确保获得较高水平的产量,应在6月上旬之前完成播种,适宜种植密度为7.50万~9.00万株/hm^2,最适种植密度为8.25万株/hm^2,当播期为5月25日,种植密度为8.25万株/hm^2时,其皮棉产量最高为1 445.29 kg/hm^2。In order to determine the suitable sowing date and planting density of short season cotton varieties in Hubei province,CCRI 50 was used as material in an experiment with six sowing dates and six planting densities.The results showed that different sowing date and different planting density had different influence on the agronomic and economic traits of CCRI50.To ensure a high level of production,CCRI 50 should be sown before the first ten days of June.The suitable planting density of CCRI 50 was between 75 000 plants/hm^2 and 90 000 plants/hm^2,and the best planting density was 82 500 plants/hm^2.When sown on 25 May with a planting density of 82 500 plants/hm^2,it gave the highest lint yield of 1 445.29 kg/hm^2.

关 键 词：棉花(Gossypium hirsutum L.) 短季棉 中棉所50 播期 种植密度 鄂东棉区 

分 类 号：S562[农业科学—作物学]