%A SHAO Guang-Cheng, GUO Rui-Qi, À¶Jing-Jing, CHEN Chang-Ren, GAO Zheng %T Entropy weight coefficient evaluation of irrigation and drainage scheme based on analysis of quality and rain ingredients of tomato %0 Journal Article %D 2012 %J Journal of Drainage and Irrigation Machinery Engin %R 10.3969/j.issn.1674-8530.2012.06.022 %P 733-737 %V 30 %N 6 %U {http://zzs.ujs.edu.cn/pgjx/CN/abstract/article_481.shtml} %8 2012-11-30 %X In order to find an irrigation and drainage treatment under which tomatoes have a good quality and high yield under rainª²shelter cultivation conditions in South China, effects of ten different irrigation and drainage schemes on plant growth, physiological indicators and fruit quality, yield of tomato were observed in a plot experiment, and a comprehensive index was proposed to assess the quality of tomatoes based on their main ingredients measured. The quality comprehensive index, yield, water consumption and irrigation amount were served as the indicators, then entropy weight evaluation values for the ten irrigation and drainage treatments were determined by using the entropy weight coefficient method. It was shown that the ninth treatment with the entropy weight value of 0.873was optimal, the better one is the fifth treatment with the weight valve of 0.85, and the poorest one was the first treatment with the lowest weight value of 0.593. The results indicated that for the ninth treatment where a 60% irrigation amount of the control treatment was applied, and the plastic drainage tube was located at 0.8m depth under the soil surface in the rainª²shelter cultivation condition, even the reduction in tomato yield was slightly reduced, the quality indexes such as soluble solids, titratable acidity, vitamin C, ratio of sugar over acid and so on were improved, causing better fruit taste and flavor; meanwhile, a high water use efficiency was achieved. Clearly, that treatment can be used as the irrigation and drainage scheme for tomato to have good quality and high yield in South China in rainª²shelter cultivation.