Study of water-permeable plastic film mulching on soil moisture and temperature and growth and development regulation of broomcornmillet
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DOI:10.7606/j.issn.1000-7601.2016.02.12
Key Words: water-permeable plastic film  dry land broomcornmillet  soil moisture  soil temperature  yield
Author NameAffiliation
REN Rui-yu Crop Research Institute, Gansu Province Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China 
HE Ji-hong Crop Research Institute, Gansu Province Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China 
DONG Kong–jun Crop Research Institute, Gansu Province Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China 
LIU Tian-peng Crop Research Institute, Gansu Province Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China 
ZHANG Lei Crop Research Institute, Gansu Province Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China 
YANG Tian-yu Crop Research Institute, Gansu Province Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China 
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Abstract:
      In Huining county, Gansu province, Longmi 5 was used as the indicator cultivar to study the effects of water-permeable plastic film mulching, common plastic film mulching and no mulching on soil moisture and temperature, growth and development of broomcornmillet. The result showed that water-permeable plastic film with moisture permeable function was more effective on the water retention than common plastic film. However, micropore evaporation of the water-permeable plastic film caused moisture content slightly lower than that of the common plastic film at 0~20 cm soil layer. Compared with open ground, water-permeable plastic film and common plastic film had obvious effects on heat insulation and temperature increasing, which significantly increased broomcorn millet yield by 46.79% and 67.13%, respectively. However, there was no significant difference in yield between plastic film mulching modes.