文章摘要
陈华斌, 田军仓, 李王成, 沈晖.基于水肥耦合的滴灌西兰花光合-产量-品质试验及综合评价[J].水土保持学报,2021,35(6):235~242
基于水肥耦合的滴灌西兰花光合-产量-品质试验及综合评价
Experiment and Comprehensive Evaluation of Photosynthesis, Yield and Quality of Broccoli Under Drip Irrigation Based on Water and Fertilizer Coupling
投稿时间:2021-06-01  
DOI:10.13870/j.cnki.stbcxb.2021.06.032
中文关键词: 西兰花  水肥耦合  非线性回归  主成分分析
英文关键词: broccoli  coupling of water and fertilizer  nonlinear regression  principal component analysis
基金项目:宁夏自治区重点研发计划重大项目"宁夏现代化生态灌区关键技术集成研究与示范"(2018BBF02022);宁夏高等学校一流学科建设项目(NXYLXK2017A03,NXYLXK2021A03)
作者单位E-mail
陈华斌1, 田军仓1,2,3, 李王成1,2,3, 沈晖1,2,3 1. 宁夏大学土木与水利工程学院, 银川 750021

2. 宁夏节水灌溉与水资源调控工程技术研究中心
, 银川 750021

3. 旱区现代农业水资源高效利用教育部工程研究中心
, 银川 750021 
slxtjc@163.com 
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中文摘要:
      研究膜下滴灌条件下,不同水肥组合对西兰花光合、产量、水肥利用效率及品质的影响,并建立西兰花产量—品质与水肥因素的回归模型及主成分综合评价体系,寻求西兰花最优的灌水量和施肥量组合,为西兰花高效节水灌溉提质增效提供技术依据。以西兰花为试验作物,采取膜下滴灌的灌溉方式,采用二因素三水平随机区组试验设计。灌水量设置3个水平,分别为1 740,2 175,2 610 m3/hm2,施肥量设置3个水平,分别为1 200,1 500,1 800 kg/hm2,共9个处理。结果表明:在生育期降水量为20.8 mm,灌水量为2 610 m3/hm2,施肥量为1 800 kg/hm2,西兰花的产量及品质最好,综合评价得分也最高,说明高水高肥处理下最有利于西兰花的生长,是适宜本地滴灌西兰花的灌溉施肥制度。
英文摘要:
      The effects of different water and fertilizer combinations on the photosynthesis, yield, water and fertilizer use efficiency and quality of broccoli under drip irrigation were studied. The regression model and principal component comprehensive evaluation system of yield quality and water and fertilizer factors of broccoli were established to seek the optimal combination of irrigation amount and fertilizer amount, so as to provide technical basis for improving the quality and efficiency of efficient water-saving irrigation of broccoli. Taking broccoli as the experimental crop, drip irrigation under mulch was adopted, and two factors and three levels randomized block experiment design was adopted. The irrigation amount was set at three levels, which were 1 740, 2 175, 2 610 m3/hm2, and the fertilization amount were 1 200, 1 500, 1 800 kg/hm2. There were nine treatments. The results showed that in the growth period, the precipitation was 20.8 mm, the irrigation amount was 2 610 m3/hm2, and the fertilization amount was 1 800 kg/hm2. The yield and quality of broccoli were the best, 2 610 m3/hm2 irrigation and 1 800 kg/hm2 fertilization, and the comprehensive evaluation score was also the highest, which indicated that the high water and high fertilizer treatment was the most favorable for the growth of broccoli, and it was a suitable irrigation and fertilization strategy for local drip irrigation of broccoli.
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