| 徐剑,赵经华,马英杰,杨磊,陈凯丽.水氮耦合条件下打瓜产量及耗水性的模糊综合评判[J].干旱地区农业研究,2019,37(3):110~116 |
| 水氮耦合条件下打瓜产量及耗水性的模糊综合评判 |
| Fuzzy comprehensive evaluation of yield and water consumption of seeding-watermelon under water-nitrogen coupling condition |
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| DOI：10.7606/j.issn.1000-7601.2019.03.14 |
| 中文关键词: 打瓜 水氮耦合 层次分析法(AHP) 模糊评判 产量 水分利用效率 北疆灌区 |
| 英文关键词:seeding-watermelon water and nitrogen coupling analytic hierarchy process（AHP） fuzzy valuation yield water use efficiency the irrigation area in northern Xinjiang |
| 基金项目:新疆水利科技项目（2017G01） |
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| 中文摘要: |
| 研究水氮耦合对打瓜产量和水分利用效率的影响，以选择适宜的灌溉定额。设置3个不同灌水定额（300 、450、600 m3·hm-2）和3个不同施氮量（0、138、276 kg·hm-2）共9个组合，研究水氮耦合对打瓜产量和水分利用效率影响的同时，利用基于层次分析法（AHP）的模糊综合评价，对各指标进行综合分析。结果表明：当灌水定额增加300 m3·hm-2、施氮量增加276 kg·hm-2，打瓜产量和水分利用效率分别增加1 416.7 kg·hm-2和5.24 kg·hm-2·mm-1，即打瓜产量和水分利用效率随着灌水定额和施氮量的增大而增加；当灌水定额从450 m3·hm-2增加到600 m3·hm-2、施氮量从138 kg·hm-2增加到276 kg·hm-2， 打瓜产量减少178.9 kg·hm-2，即水肥量继续增加则产量下降；灌水定额450 m3·hm-2(W2)和施氮量138 kg·hm-2（N2）时，组合产量和WUE分别为2 582.9 kg·hm-2和10.91 kg·hm-2·mm-1，节水增产效果最佳；该组合的模糊综合评价亦为最优，与大田试验分析结果一致。 |
| 英文摘要: |
| The effects of water-nitrogen coupling on yield and water use efficiency of seeding-watermelon were stadied, and the suitable irrigation system was selected. Three different irrigation quotas (300, 450 m3·hm-2 and 600 m3·hm-2) and three different nitrogen application rates (0, 138 kg·hm-2 and 276 kg·hm-2) were set in 9 combinations. At the same time, the indexes were comprehensively analyzed by using the fuzzy comprehensive evaluation method based on analytic hierarchy process (AHP). The results showed that when irrigation quota increased by 300 m3·hm-2 and nitrogen application increased by 276 kg·hm-2, the yield and water use efficiency of watermelon increased by 1 416.7 kg·hm-2 and 5.24 kg·hm-2·mm-1, respectively. That is to say, the yield and water use efficiency increased with the increase of irrigation quota and nitrogen application rate. When irrigation quota increased from 450 m3·hm-2 to 600 m3·hm-2 and nitrogen application increased from 138 kg·hm-2 to 276 kg·hm-2, the yield of watermelon decreased by 178.9 kg·hm-2, taht is, the yield decreased with the increase of water and fertilizer application. The yield and WUE of irrigation quota 450 m3·hm-2 (W2) and nitrogen application 138 kg·hm-2 (N2) combination were 2 582.9 kg·hm-2 and 10.91 kg·hm-2·mm-1, respectively. The water saving and yield increasing of W2N2 was the best, and the fuzzy evaluation of W2N2 was also the highest, which was consistent with the results of field experiments. |
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