| The effect of degradable agricultural mulch films on the growth and yield of cotton in Southern Xinjiang |
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| DOI：10.7606/j.issn.1000-7601.2016.04.29 |
| Key Words: degradable agricultural mulch film cotton growth seed cotton yield Southern Xinjiang |
| Author Name | Affiliation | | ZHU You-juan | AKS Vocational and Technical College, Akesu, Xinjiang 84300 China | | WU Wei-mo | Collge of Plant Science, Tarim University, Alar, Xinjiang 843000, China | | WEN Shan-ju | Collge of Plant Science, Tarim University, Alar, Xinjiang 843000, China | | WEI Jian-jun | Institute of Crops of Xinjiang Academy of Agricultural Reclamation, Shihezi, Xinjiang 832000, China | | ZHAN Yong | Institute of Crops of Xinjiang Academy of Agricultural Reclamation, Shihezi, Xinjiang 832000, China | | CHEN Kang-wei | NANKOU Farm of The First Division of Xinjiang Production and Construction Corps, Alar, Xinjiang 843000, China | | Yang Ren-bi | NANKOU Farm of The First Division of Xinjiang Production and Construction Corps, Alar, Xinjiang 843000, China |
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| Abstract: |
| Field experiments with 15 kinds of degradable agricultural plastic films mulching cotton were carried out on the Southern Xinjiang, China during the period of 2008—2009. The 15 degradable agricultural plastic films with induction time of 30～120 days were manufactured by three factories in Beijing, Sichuan and Shanxi Province, China. The polyethylene (PE) and non-mulching film treatments were used as the black treatments. This paper studied on degradation characteristics of degradable agricultural plastic films, and the effects of them on the growth and yield of cotton. The results showed that the degradable agricultural plastic films degraded with breaks and holes, while the PE plastic films did not. The degradable agricultural plastic film of Beijing 1# with induction time of 90 days broke easily as compared to other films after mulching cotton 45 days. In comparison with the PE film, the degradable agricultural plastic film of Beijing 1# with induction time of 80 days was observed with some significant strip cracks in the scanning electron microscopy (SEM) graph after mulching cotton 145 days. Compared with non-mulching film treatment, degradable plastic films covering had a significant influence on cotton plant height, leaf number, boll number per plant, the number of branch and aboveground dry matter weights during different growth stages, as well as bolls/plant and number of fruiting branch/plant. However, there were no significant differences in these characteristics between mulching degradable agricultural plastic films and PE film. There were also no significant differences in lint percent, single boll weight and seed cotton yield between degradable agricultural plastic films and conventional PE film. Mulching of degradable agricultural plastic films can significantly increase the yield of cotton than non-mulching film treatment. |
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