论文部分内容阅读
对移栽地膜棉和移栽棉的土壤物理性状、根系活力、花芽分化特点、干物质积累分配及叶面积变化等进行试验研究 ,结果表明 :移栽地膜棉覆膜能增加土壤温度 ,保持土壤水分含量相对稳定性 ,降低土壤容重 ;花芽分化期提前 3d ,花芽分化强度较移栽棉每日每株高 0 .5个 ;移栽地膜棉比移栽棉皮棉单产增 32 .4%,达极显著水平 ,10月 2 0日前收花量高 4个百分点
Soil physical properties, root vigor, flower bud differentiation characteristics, dry matter accumulation and distribution and leaf area change of cotton and cotton transplanted cotton were studied. The results showed that cotton film mulching could increase soil temperature and maintain soil Relative stability of water content decreased soil bulk density; Flower bud differentiation stage advance 3d, flower bud differentiation intensity per plant per plant 0.5 times higher; transplanting mulching cotton transplanting cotton lint yield increased 32.4% Very significant level, October 20 before closing high 4 percentage points