| 基于Jensen模型的压砂地西瓜灌溉制度优化研究 |
| |
| 引用本文： | 马波,田军仓.基于Jensen模型的压砂地西瓜灌溉制度优化研究[J].干旱地区农业研究,2016,34(6):123-129. |
| |
| 作者姓名： | 马波 田军仓 |
| |
| 作者单位： | 宁夏大学土木与水利工程学院,宁夏银川750021;宁夏节水灌溉与水资源调控工程技术研究中心,宁夏银川750021;教育部旱区现代农业水资源高效利用工程研究中心,宁夏银川750021 |
| |
| 基金项目： | 教育部2010年度“长江学者和创新团队发展计划”创新团队(IRT1067) |
| |
| 摘 要： | 针对压砂地西瓜水资源高效利用和合理灌溉制度问题,于2008年和2009年采用试坑对比试验方法进行了研究,利用水分生产函数Jensen模型分析了压砂地西瓜耗水规律及需水关键期,并用Jensen模型对压砂地西瓜灌溉制度进行了优化,结果表明:(1)压砂地西瓜全生育期耗水量为79.6~409.9 mm;(2)西瓜需水关键生育阶段顺序为"苗期开花坐果期膨大初期膨大中期伸蔓期膨大后期";(3)压砂地西瓜各生育阶段的水分敏感系数λ_1=0.6171,λ_2=0.2707,λ_3=0.0355,λ_4=0.1097,λ_5=0.1390,λ_6=0.1106;(4)通过灌溉制度优化发现:供水量范围为80~240 mm时增产效果最明显,供水量达到320 mm时,压砂地西瓜可获得高产。最优灌溉制度为:苗期灌水20~30 mm,伸蔓期灌水50~55 mm,开花坐果期灌水40~45 mm,膨大初期灌水70 mm,膨大中期灌水60~70mm,膨大末期灌水60~65 mm。
|
| 关 键 词： | 西瓜 压砂地 灌溉制度 Jensen模型 |
Research on the optimal irrigation schedule of watermelon in gravel mulch field based on Jensen model |
| |
| MA Bo,TIAN Jun-cang.Research on the optimal irrigation schedule of watermelon in gravel mulch field based on Jensen model[J].Agricultural Research in the Arid Areas,2016,34(6):123-129. |
| |
| Authors: | MA Bo TIAN Jun-cang |
| |
| Institution: | College of Civil and Hydraulic Engineering, Ningxia University, Yinchuan, Ningxia 750021, China; The Research Center of Engineering Technology on Water-saving Irrigation and Water Resource Regulation Ningxia, Yinchuan, Ningxia 750021, China; The Center of Engineering Research on Modern Agricultural Water Resources Efficient Utilization in Arid Region, Yinchuan, Ningxia 750021, China and College of Civil and Hydraulic Engineering, Ningxia University, Yinchuan, Ningxia 750021, China; The Research Center of Engineering Technology on Water-saving Irrigation and Water Resource Regulation Ningxia, Yinchuan, Ningxia 750021, China; The Center of Engineering Research on Modern Agricultural Water Resources Efficient Utilization in Arid Region, Yinchuan, Ningxia 750021, China |
| |
| Abstract: | The paper aimed at the problem of rational irrigation schedules and high efficiency utilization of water resources for watermelon in gravel mulch field,adopted the test pits contrast method in 2008 and 2009,using the water production function as Jensen model,analyzed the water consumption rule,key water requirement period and optimized the irrigation schedules by using Jensen model for watermelon in gravel mulch field.The results showed that:(1) The water consumtion in whole growth period of watermelon in gravel mulch field was 79.6 to 409.9 mm.(2) The order of key water demand period for watermelon was' seedling stage ＞ flowering and fruit setting stage ＞ expand initial stage ＞ expand middle stage ＞ stretch tendril stage ＞ expand late stage'.(3) The water sensitive index for each growth stage were:λ1 =0.6171,λ2=0.2707,λ3=0.0355,λ4=0.1097,λ5=0.1390 and λ6=0.1106.(4)Through the optimal irrigation schedule fotnd:the yield increasing effect was the most obvious when the irrigation supply was 80 to 240 rmm;The high yield can be obtained when the irrigation supply reached 320 mm.The optimal irrigation schedule were:20 to 30 mm in seedling stage,50 to 55 mm in vine-extending stage,40 to 45 mm in flowering and fruit setting stage,70 mm in expand initial stage,60 to 70 mm in expand interim stage,60 to 65 mm in expand late stage. |
| |
| Keywords: | watermelon gravel mulch field irrigation schedules Jensen model |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《干旱地区农业研究》浏览原始摘要信息 |
| 点击此处可从《干旱地区农业研究》下载免费的PDF全文 |
|
