| The effect of water levels on yield and water use efficiency of soybean in northeast black soil region |
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| DOI：10.7606/j.issn.1000-7601.2012.06.11 |
| Key Words: black soil region irrigation yield water use efficiency |
| Author Name | Affiliation | | ZOU Wenxiu | Key Laboratory of Mollisols Agroecology， National Observation Station of Hailun Agvoecology System, Northeast Institute of Geograpthy and Agroecology, Chinese Academy of Sciences, Harbin 150081, China | | HAN Xiaozeng | Key Laboratory of Mollisols Agroecology， National Observation Station of Hailun Agvoecology System, Northeast Institute of Geograpthy and Agroecology, Chinese Academy of Sciences, Harbin 150081, China | | JIANG Heng | Key Laboratory of Mollisols Agroecology， National Observation Station of Hailun Agvoecology System, Northeast Institute of Geograpthy and Agroecology, Chinese Academy of Sciences, Harbin 150081, China
Graduate University of Chinese Academy of Sciences, Beijing 100049, China | | YANG Chunbao | Key Laboratory of Mollisols Agroecology， National Observation Station of Hailun Agvoecology System, Northeast Institute of Geograpthy and Agroecology, Chinese Academy of Sciences, Harbin 150081, China | | HAO Xiangxiang | Key Laboratory of Mollisols Agroecology， National Observation Station of Hailun Agvoecology System, Northeast Institute of Geograpthy and Agroecology, Chinese Academy of Sciences, Harbin 150081, China | | LI Meng | Key Laboratory of Mollisols Agroecology， National Observation Station of Hailun Agvoecology System, Northeast Institute of Geograpthy and Agroecology, Chinese Academy of Sciences, Harbin 150081, China | | ZHANG Xinhui | Shandong Gaomi Bureau of Land Resource, Caomi, Shandong 261500, China |
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| Abstract: |
| Field experiments of controlling water with water levels including over water treatment(I1), suitable wa-ter treatment(I2), drought water treatment(13)and natural rainfall(R) were carried out in order to study the effect of different water levels on yield and water use efficiency of soybean in Hailun agricultural ecology station of Chinese Acade-my of Sciences in 2011. The biomass and plant height of soybean in different treatments were in increasing order of I32·mm), and the second was in I2 with 14.38 kg/(hm2·mm). There-fore, in terms of yield and water use efficieney of soybean, l2 with 347 mm volume of water input could meet the water demand of soybean in the growing season, and irrigation time was critical for saving irrigation water and increasing yield and water use efficiency. |
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