| Effects of different film mulching modes on growth, yield and water use efficiency of winter rapeseed in dryland in Tianshui |
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| DOI：10.7606/j.issn.1000-7601.2013.04.015 |
| Key Words: film mulching mode dryland winter rapeseed growth yield water use efficiency |
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| Abstract: |
| The experiment was conducted with five treatments, including whole film mulching and double ridge-furrow planting (FM1), whole film mulching and soil covering (FM2), whole film mulching (FM3), film mulching and ridge-side planting (FM4) and traditional cultivation (CK), to investigate the effects of different film mulching modes on the growth period, over-wintering rate, yield, economic traits and water use efficiency of winter rapeseed. The results showed that the modes of FM1, FM2, FM3 and FM4 could affect economic traits, improve water use efficiency and over-wintering rate, increase yield and shorten growth period of winter rapeseed to some extend. Among all the treatments, the mode of FM1 showed the best effects, under which the water use efficiency was increased by 3.4 kg·mm-1·hm-2, the growth period was shorten by 7 d, the over-wintering rate was increased by 24.5%, and the yield was raised by 42.8%, as compared to those under CK; under the modes of FM3, FM2 and FM4, the yield were raised by 33.9%, 26.0% and 24.8% respectively. |
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