Aiming at less and un-uniform distribution rainfall problems, the serious draught in spring, low crop production and water efficiency in sandy soil area of Heilongjiang Province, the experiment of alternative furrow i...Aiming at less and un-uniform distribution rainfall problems, the serious draught in spring, low crop production and water efficiency in sandy soil area of Heilongjiang Province, the experiment of alternative furrow irrigation was conducted in Dumeng County in 2009. The purpose of the experiment was to find the water consumption law and its influence on maize yield. The results showed that the highest water consumption was during the heading stage and the highest daily consumption of water was during the filling stage. The stimulation effect of alternative furrow irrigation on yield was obvious in the appropriate irrigation level. The best irrigation pattern for the highest yield was as follows: the seedling stage was 325 m3 ? hm-2; the jointing stage was 400 m3 ? hm-2; and the filling stage was 288 m3 ? hm-2. The water consumption during each growing period was that the seedling was 38.85 mm; the jointing was 108.11 mm; the heading was 124.39 mm; the filling was 88.96 mm; the milk was 60.21 mm; and the harvesting was 47.89 mm.展开更多
基金Supported by Construction Found of Key Laboratory for Water-saving Agriculture in Universities of Heilongjiang Province (2006BAD29B01)National Science and Technology Program of China (2007BAD88B01)
文摘Aiming at less and un-uniform distribution rainfall problems, the serious draught in spring, low crop production and water efficiency in sandy soil area of Heilongjiang Province, the experiment of alternative furrow irrigation was conducted in Dumeng County in 2009. The purpose of the experiment was to find the water consumption law and its influence on maize yield. The results showed that the highest water consumption was during the heading stage and the highest daily consumption of water was during the filling stage. The stimulation effect of alternative furrow irrigation on yield was obvious in the appropriate irrigation level. The best irrigation pattern for the highest yield was as follows: the seedling stage was 325 m3 ? hm-2; the jointing stage was 400 m3 ? hm-2; and the filling stage was 288 m3 ? hm-2. The water consumption during each growing period was that the seedling was 38.85 mm; the jointing was 108.11 mm; the heading was 124.39 mm; the filling was 88.96 mm; the milk was 60.21 mm; and the harvesting was 47.89 mm.
