干旱地区农业研究2012，Vol.30Issue(6)：32-37,49,7.
垄膜沟播与平膜侧播对冬小麦光合特性及产量的影响
Effects of furrow planting with ridge film mulching and side planting with flat film mulching on photosynthesis and yield of winter wheat
摘要
Abstract
To investigate the rational film-covering planting pattern for sub-humid areas of Loess Plateau, two measures of ridge (R) and flat (F) film mulching are adopted, taking traditional cultivation as the control, on soil moisture, photosynthetic indexes, chlorophyll relative content (SPAD) in flag leaves and grain yield of winter wheat under four film mulching treatments. The results showed that: compared to traditional cultivation (CK) , in the whole growth period, the 0 ~ 200 cm soil moisture content in R40 and R60 treatments increased respectively by 8.82% and 10.84% , and the F40 and F60 had 4.40% and 3.96% improvement, while R treatment had averagely 5.42% (P<0.05) more than F treatment. In the film mulching modes, the SPAD value, net photosynthetic rate ( Pn) , transpiration rate (-Tr) and stomatal conductance ( Gs) were significantly ( P < 0.05 ) higher than those in CK, and the R treatment significantly higher than F under the same film mulching width, and the intercellular CO2 concentration ( Ci) was significantly lower than CK ( P < 0.05) . The economic yield and WUE of winter wheat under different film mulching were significantly higher than CK, and the average increasing rate was 20. 18% and 30.97% . Compared to F treatment, the biomass, grain yield and WUE respectively increased under corresponding R treatment. The results indicate that furrow planting with ridge film mulching is a beneficial cultivating model in sub-humid areas of Loess Plateau for winter wheat.关键词
覆膜/土壤水分/光合特性/冬小麦Key words
film mulching/ soil moisture/ photosynthesis/ winter wheat分类
农业科技引用本文复制引用
张鹏,张晓芳,卫婷,贾志宽,任小龙,丁瑞霞..垄膜沟播与平膜侧播对冬小麦光合特性及产量的影响[J].干旱地区农业研究,2012,30(6):32-37,49,7.基金项目
"十二五"国家科技支撑计划"西北旱区农业水土资源潜力与高效利用模式集成及应用"(2011BAD29B09) （2011BAD29B09）
国家"十二五"科技支撑课题"西北旱作区抗逆稳产旱作农业技术集成与示范"(2012BAD09B03) （2012BAD09B03）
