桃源县湘杂棉8号的栽培试验初报  

Planting Experiment of Xiangzamian No.8 in Taoyuan County

作　　者：燕道首 揭桂元 程泽新[2] 

机构地区：[1]桃源县农业技术推广站,湖南桃源415700 [2]桃源县农业局经作站,湖南桃源415700

出　　处：《湖南农业科学》2011年第4期31-34,共4页Hunan Agricultural Sciences

基　　金：国家产业体系公益项目

摘　　要：为确定桃源县棉花种植的最佳密度等参数,设置6个不同的棉花种植密度与施N水平处理,进行了3 a试验。结果表明:在不同密度处理条件下,棉花的农艺、经济性状、光合产物的合成积累量、籽棉、皮棉产量、成本投入与产出净收益等都表现较明显的差异。结合桃源县的气候特点,湘杂棉8号的种植密度以1 200～1 400株/667m2、施用纯氮25 kg/667m2最佳,有利于高产高效。In order to determine the optimum parameters,such as planting density,for cotton in Taoyuan County,six different planting densities and nitrogen fertilizer rates were set for three years experiments.The results showed that with different planting densities,the agricultural characters,the economic characters,the accumulation amount of photosynthate,the yield of seed cotton and lint,the cost input and net income of cotton all showed an obvious differences.According to the climatic characters of Taoyuan County,the optimum planting density and the optimum pure nitrogen fertilizer rate of Xiangzamian No.8 were 18 000~21 000 shoots/hm2 and 375 kg/hm2 respectively,which were propitious to high yield and high efficiency.

关 键 词：种植密度 湘杂棉 桃源 

分 类 号：S562[农业科学—作物学]