江西丘陵棉区棉花覆膜栽培的高产机理及技术要点

The Key Techniques and High Yield Mechanism of Cotton Plastic-mulched Cultivation in Hilly Area of Jiangxi Province

通过2010～2011年在瑞昌市武蛟乡丘陵棉田进行直播棉的覆膜与露地栽培对比试验,结果表明:棉花地膜覆盖栽培可提高土壤温度、增加土壤积温,保墒、提墒、稳定土壤水分,改善土壤理化性质和养分状况,促进棉花生育进程和根系生长。同时提出了相应的栽培技术要点,并对地膜棉的易早衰和白色污染提出了防止措施。

In order to research the key techniques and high yield mechanism of cotton cultivation, two treatments, direct seeding covered with plastic film and direct seeding without plastic film mulched, were designed and compared in hilly cotton field of Wujian town in Ruichang city from 2010 to 2011 in this paper. The results showed that plastic - mulched cultivation could increase soil temperature and soil accumulated temperature, preserve soil moisture, improve the physical and chemical properties of soil and nutrient status, promote the proceeding of cotton growth and root growth. At the same time, the author has put forward the corresponding cultivation techniques points and the prevention measures for premature senility and white pollution of cotton plastic - mulchcd cultivation.