| Effects of dry and wet irrigation on the growth of rice under system of rice intensification |
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| DOI：10.7606/j.issn.1000-7601.2007.05.22 |
| Key Words: intensified cultivation rice dry and wet irrigation redox potential(Eh) |
| Author Name | Affiliation | | ZHANG Yu-ping | State Key Laboratory of Rice Biology China National Rice Research Institute,Hangzhou,Zhejiang 310006,China | | ZHU De-feng | State Key Laboratory of Rice Biology China National Rice Research Institute,Hangzhou,Zhejiang 310006,China | | LIN Xian-qing | State Key Laboratory of Rice Biology China National Rice Research Institute,Hangzhou,Zhejiang 310006,China | | CHEN Hui-zhe | State Key Laboratory of Rice Biology China National Rice Research Institute,Hangzhou,Zhejiang 310006,China | | LI Hua | State Key Laboratory of Rice Biology China National Rice Research Institute,Hangzhou,Zhejiang 310006,China | | YANG Yan-ping | State Key Laboratory of Rice Biology China National Rice Research Institute,Hangzhou,Zhejiang 310006,China |
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| Abstract: |
| Effects of aerobic irrigation on the rice growth were conducted in the experimental station of China National Rice Research Institute under system of rice intensification.The result showed that: it saved water by 1.4%,12.4%,9.0% and 11.2% at returning green stage,tillering stage,booting stage and heading stage respectively,and the water use efficiency was 0.93 kg/m3,34.2% higher than that of the control;soil redox potential(Eh) changed circularly and advanced after drying 4 to 5 days,and rewatering 4 to 5 days;and the conditions of soil aerating and root activity were improved,furthermore,it promoted big panicle,and increased the grain yield of rice by 6.9%. |
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