| Cite this article: | 张雷.鲜食甜玉米需水规律及节水灌溉制度研究[J].灌溉排水学报,0,():-. |
| zhanglei.鲜食甜玉米需水规律及节水灌溉制度研究[J].灌溉排水学报,0,():-. |
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| Study on Water consumption rule and Water Saving Irrigation System of Fresh Sweet Maize |
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zhanglei
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Yunnan Institute of Water Resource and Hydropower Research
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| Abstract: |
| Abstract: In order to guiding scientific irrigation of sweet maize,the water requirement and water saving irrigation has been experimented. The experiment were based on high-yield growing experience and real-time monitoring in the moisture content and meteorological factors. The dynamic change of moisture content was analyzed. The water requirement,water consumption rule and kc of sweet maize were counted. The irrigation system has been optimized for real experiment water irrigation system. The result showed that the water requirement, daily water consumption in all growth period of sweet maize were 197.7 and 212.9mm, 3.0mm/d and 3.1mm/d from 2016 to 2017. There were differences of daily water consumption among different growth stages, and the daily consumption in tasselling stage was the highest and the seedling was the smallest. The average of crop coefficient were 0.63 and 0.67. The optimal irrigation time and period for sweet maize were designed. By optimum design ,The number of irrigation were four times and the net irrigation water use were reduced by 31.84% to 33.97% compared with the real experiment water irrigation system. The water requirement of sweet maize was low and water consumption rule was similar to cron ,appropriate irrigations at the growth stages was essential to maize production. |
| Key words: Keywords: sweet maize; water requirement ;water consumption rule; crop coefficient; irrigation system |
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