Effect of different mulching films on yield benefit and residual film recovery rate of machine-picked cotton in southern Xinjiang
This study aimed to explore the effects of different mulching films on machine-picked cotton yield,economic benefit,and mulching film recovery in southern Xinjiang.The experiment was conducted in 2021 in the cotton field of Shaya County,Aksu Prefecture,Xinjiang Uygur Autonomous Region.The bare land was used as the control to set two different mulching films,namely,high castle mulching film(GB)and common PE mulching film(PE).The yield and economic benefits of cotton under different mulching films were statistically analyzed,and the residual mulching films were recovered.The results showed that,compared with the common PE film and bare land,GB could significantly increase the soil temperature of the 0-10 cm soil layer in the cotton field during the seedling stage(20 d after sowing)by 0.78℃and 2.19℃,respectively.The water retention rate at 30th day was 2.51 percentage points higher than that of common PE film,which was effective for increasing temperature and preserving soil moisture.The yield and economic benefit of cotton were significantly increased in GB.Compared with the common PE mulching film and bare land,the seed cotton yield increased by 9.91%and 33.13%,and the profit in GB and PE mulching increased by 55.77%and 27.22%,respectively,compared that in bare land which was beneficial to cotton growth and yield.In addition,the tensile load and fracture nominal strain GB of before and after use were higher than that of ordinary PE film,and the disposable mechanical recovery rate exceeded 80%.This study showed that high castle mulching film had a better effect on increasing temperature and preserving soil moisture in machine-picked cotton fields in southern Xinjiang,was more beneficial to cotton growth and yield than common PE film and bare soil,and the recovery efficiency was higher.To promote the green and sustainable development of cotton fields in southern Xinjiang,it could be preferential for widespread use.
high castle filmcottonplastic film recyclingeconomic benefit
国家科技期刊平台
NSTL
万方数据
维普
