稀穴密株种植对棉花生长发育特性的影响  

Effect of Dense-planting at Thin-hole on the Characteristics of Growth and Development for Cotton

作　　者：杨淑巧[1] 王慧杰[1] 南建福[1] 裴蕾[1] 姚彤琦[1] 黄云红[1] 王敏志[1] 

机构地区：[1]山西省农业科学院棉花研究所,山西运城044000

出　　处：《现代农业科技》2014年第17期44-45,共2页Modern Agricultural Science and Technology

基　　金：山西省科学技术发展计划项目(20120313003);山西省农业科学院院重点项目(2012yzd10)

摘　　要：为探索棉花合理种植方式和种植密度,进行了稀穴密株种植试验。结果表明:采用稀穴密株种植棉花,不仅可减少劳动力,而且在适宜的密度下可显著提高棉花产量。在种植方式为3株/穴时,棉花的株高比对照增加6.97%,极显著高于对照;在花铃期以前,稀穴密株处理的光合速率都明显高于对照,花铃期以后,稀穴密株种植群体的光合速率下降较快;3株/穴时棉花的单株成铃数比对照增加52.38%,籽棉产量增加25.90%。The experiment of dense-planting at thin-hole for cotton was carried out to explore reasonable planting method and planting density. The results showed that,using the technology of dense-planting at thin-hole,not only could reduce the labor force,but also could significantly increase cotton production in the appropriate density.When the planting density was 3 plants/acupoint,the cotton plant height increased 6.97% than CK.The photosynthetic rate was significantly higher than CK before the flowering stage,the photosynthetic rate of the plants of dense-planting at thin-hole decreased rapidly after the flowering stage.The number of boll per plant of 3 plants/acupoint cotton increased 52.38%than CK,seed yield increased by 25.90%.

关 键 词：棉花 稀穴密株 群体特征 产量 

分 类 号：S562[农业科学—作物学]