Effects of Cultivation Conditions on Leaf Area Index, Quality and Yield of Cotton under Mulched Drip Irrigation
DENG Zhong
ZHAI Guo-liang
ZAI Song-mei
FENG Jun-jie
ZHAO Hong-shu
Abstract：The dynamic change of cotton plastic mulching by drip irrigation LAI and quality and yield was studied under different cultivation conditions during growth in Korla city.The results showed that LAI of cotton changed as a curve and its peak emerged at fool-boll stage.LAI and height are increased through deep tillage fertilixation but because without chemistry control measures lead to plant rapidly growth in late stage and effective photosynthetic decreased so yield is decreased slightly.While height and LAI are decreased properly and the plant shape is optimized through drip paclobutrazol(PP_(333))follow water measures in growth stages,single boll weight is not decreased but boll number per plant is increased.Yield is increased 2.4%、5.5% and 30.6% compared with spraying DPC on leaf and deep tillage and conventional flood irrigation respectively,lint button percent comes to 44.70%.So the yield effect of drip paclobutrazol(PP_(333))follow water is superior to spraying DPC on leaf,but they have mutual complementary quality effect.
Keywords：plastic mulching by drip irrigationcultivation conditionLAIfiber qualitycotton yield
Publication Date：2010-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：3( 83-85 )