| Effects of different mulching treatments on yield and water use efficiency of winter wheat in Weibei Highland |
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| DOI：10.7606/j.issn.1000-7601.2016.06.08 |
| Key Words: wheat mulching yield water use efficiency WeiBei Highland |
| Author Name | Affiliation | | MA Hao | The Resources and Environment College of Northwest A＆F University, Yangling, Shaanxi 712100, China | | HAO Ming-de | The Resources and Environment College of Northwest A＆F University, Yangling, Shaanxi 712100, China
Institute of Soil and Water Conservation of Northwest A＆F University, Yangling, Shaanxi 712100, China | | GUO Hui-hui | The Resources and Environment College of Northwest A＆F University, Yangling, Shaanxi 712100, China | | SU Fu-yuan | The Resources and Environment College of Northwest A＆F University, Yangling, Shaanxi 712100, China | | NIU Yu-hua | Institute of agricultural products processing technology of shaanxi science and technology University, Xi'an 710021, China |
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| Abstract: |
| In order to elucidate the effects of different mulching treatments on yield and water use efficiency (WUE) of winter wheat, we studied the yield, nutrient absorption and WUE on full plastic-film mulching and dual mulching of full plastic-film and wheatgrass during summer fallow and different periods throughout the year. The results showed that both full-year and summer fallow mulching treatments can improve wheat yield, the yield of full year with full plastic-film mulching had reach 5 383 kg·hm-2, which was the highest in all treatments and increased yield by 15.4% compared with conventional tillage with no mulching; full year with full plastic-film mulching had remarkable improvement on wheat agronomic characteristics compared to no mulching treatment, kernel number per row and ear number per hectare was increased by 16.2% and 33.0%, respectively. Compared to no mulching mode, the total absorptions of N, P and K were increased by 12.3%, 21% and 21.8% in grain and 55.1%, 36.7% and 29.3% in stems and leaves in the treatment of full year with full plastic-film mulching, respectively. The mode of mulching had significantly improved WUE of wheat, the yield of full-year with full plastic-film mulching was the highest which was increased by 11.3% compared to no mulching. Generally, full-year with full plastic-film mulching was the best mode which could promote the wheat yield, WUE, absorptions of N, P and K, and improve agronomic characteristics of winter wheat. |
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