| Effects of furrow planting with ridge film mulching and side planting with flat film mulching on photosynthesis and yield of winter wheat |
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| DOI：10.7606/j.issn.1000-7601.2012.06.05 |
| Key Words: film mulching soil moisture photosynthesis winter wheat |
| Author Name | Affiliation | | ZHANG Peng | Chinese Institute of Water-saving Agriculture, Northwes A&F Unioersity/ Key Laboratory of Crop Physi-ecology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, Shaanxi 712100, China | | ZHANG Xiaofang | Chinese Institute of Water-saving Agriculture, Northwes A&F Unioersity/ Key Laboratory of Crop Physi-ecology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, Shaanxi 712100, China | | WEI Ting | Chinese Institute of Water-saving Agriculture, Northwes A&F Unioersity/ Key Laboratory of Crop Physi-ecology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, Shaanxi 712100, China | | JIA Zhikuan | Chinese Institute of Water-saving Agriculture, Northwes A&F Unioersity/ Key Laboratory of Crop Physi-ecology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, Shaanxi 712100, China | | REN Xiaolong | Chinese Institute of Water-saving Agriculture, Northwes A&F Unioersity/ Key Laboratory of Crop Physi-ecology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, Shaanxi 712100, China | | DING Ruixia | Chinese Institute of Water-saving Agriculture, Northwes A&F Unioersity/ Key Laboratory of Crop Physi-ecology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, Shaanxi 712100, China |
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| Abstract: |
| To investigate the rational film-covering planting pattern for sub-humid areas of Loess Plateau, two mea-sures of ridge (R) and flat (F) film mulching are adopted, taking traditional cultivation as the control, on soil moisture, photosynthetic indexes, chlorophyll relative content (SPAD) in flag leaves and grain yield of winter wheat under four film mulching treatments. The results showed that: compared to traditional cultivation(CK), in the whole growth period, the 0~200 cm soil moisture content in R40 and R60 treatments increased respectively by 8.82% and 10.84%, and the F40 and F60 had 4.40% and 3.96% improvement, while R treatment had averagely 5.42%(P<0.05) more than F treatment. In the film mulching modes, the SPAD value, net photosynthetic rate (Pn), transpiration rate (Tr) and stomatal conductance (Gs) were significantly (P<0.05) higher than those in CK, and the R treatment significantly higher than F under the same film mulching width, and the intercellular CO2 concentration (Ci) was significantly lower than CK(P<0.05). The economic yield and WUE of winter wheat under different film mulching were significantly higher than CK, and the average increasing rate was 20.18% and 30.97%. Compared to F treatment, the biomass, grain yield and WUE respectively increased under corresponding R treatment. The results indicate that furrow planting with ridge film mulching is a beneficial cultivating model in sub-humid areas of Loess Plateau for winter wheat. |
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