Effects of film mulching on the growth of silage maize and weed | 覆膜对青饲玉米生长发育及杂草的影响
2010
Guo Mijuan, Chinese Agricultural University, Beijing (China), College of Biological Sciences | Yu Chengqun, Chinese Academy of Sciences, Beijing (China), Institute of Geographic Sciences and Natural Resources | Zhong Huaping, Chinese Academy of Sciences, Beijing (China), Institute of Geographic Sciences and Natural Resources
[Objective] The aim was to provide scientific reference for the production of silage maize in correlated regions of Tibet. [Method] Effects of film mulching on the growth period, growth traits and yield of silage maize and weed were analyzed. [Result] Under the treatment of film mulching, the growth period of silage maize could be advanced for 7-16 d; the plant length, stem diameter and leaf area were increased; and the grain output was increased by 75.9%. According to the market price of silage maize in 2008, 22 500 Yuan/hm2 was increased. There were 13 kinds of weeds in silage maize field, which belonged to 13 genuses, 8 families. Among them, 6 kinds of weeds belonged to gramineae, among which Echinochloa crusgalli and Setaria viridis were dominated in the weed communities. Plantago depressa, Eragrostis pilosa and Malva verticillata var. chinensis could be totally controlled by the film mulching; meanwhile the others could be also controlled in a certain degree except Echinochloa crusgalli. [Conclusion] The plastic mulching planting is worth popularizing for the developing of animal husbandry and the incoming of the local farmers in Tibet.
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