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Impact of agricultural residual plastic film on the growth and yield of drip-irrigated cotton in arid region of Xinjiang, China

文献类型： 外文期刊

作者： Hu, Can 1 ; Wang, Xufeng 2 ; Wang, Shiguo 3 ; Lu, Bing 1 ; Guo, Wenshong 2 ; Liu, Chaoji 2 ; Tang, Xiuying 1 ;

作者机构： 1.China Agr Univ, Coll Engn, Beijing 100083, Peoples R China

2.Tarim Univ, Coll Mech & Elect Engn, Alar 843300, Xinjiang, Peoples R China

3.Xinjiang Acad Agr & Reclamat Sci, Mech Equipment Res Inst, Shihezi 832000, Peoples R China

关键词： residual plastic film; plastic film pollution; soil pollution; pollution control; cotton; production management

期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING （ 影响因子：2.032； 五年影响因子：2.137 ）

ISSN： 1934-6344

年卷期： 2020 年 13 卷 1 期

页码：

收录情况： SCI

摘要： Long-term and widespread use of plastic mulching has led to the accumulation of residual plastic film (RPF) in farmland soils of Xinjiang, China. However, there is no specific quantitative basis for RPF pollution or a clear understanding of the influence of residual film on crop growth. The aim of this study was to investigate the effect of RPF on the growth of cotton, an important cash crop of Xinjiang. Based on the field conditions and previous reports, various amount of residual film was applied in 0-30 cm soil layer. The growth index including emergence rate, dry matter, and yield of cotton was examined at different growth stages under different soil residual film levels. Results demonstrated a significant effect of RPF on soil moisture distribution and movement. Plastic residues had a significant effect on cotton growth at levels above 200 kg/hm(2), and the yield decreased as the RPF amount increased. Based on these findings, 200 kg/hm(2) was suggested as a threshold level to determine the effects of RPF on cotton. This study provided a basis to rate RPF pollution in farmland soils and help understand the impact of pollution on crop productivity.

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