论文部分内容阅读
日光温室覆膜滴灌条件下,采用5 20标准蒸发皿的水面蒸发量为控制灌溉参数,研究了不同蒸发皿系数(Kcp=0.6,0.8,1.0,和1.2)的灌水量对黄瓜生长的影响。试验结果表明:在秋冬茬口的日光温室内,垄作覆膜滴灌条件下,黄瓜的株高、叶面积以及经济产量都随着灌水量的增加而提高,但灌溉水利用效率随之降低。综合考虑黄瓜产量和灌溉水利用效率,日光温室覆膜滴灌条件下秋冬茬口黄瓜生产时,当灌水周期为2 d时,蒸发皿系数取为01 8~11 0,产量和灌溉水利用效率都较高,推荐作为该茬口的灌溉制度技术指标。
Under the condition of drip irrigation with film mulching in sunlight greenhouse, the water evaporation of 5 20 standard evaporating dish was used to control the irrigation parameters. The effects of different irrigation panicle coefficients (Kcp = 0.6, 0.8, 1.0, and 1.2) on cucumber growth were studied. The results showed that the plant height, leaf area and economic yield of cucumber increased with the increase of irrigation volume under the conditions of drip irrigation under ridge mulch in autumn and winter stubs, but the irrigation water use efficiency decreased accordingly. Considering cucumber production and irrigation water use efficiency, when cucumber production in autumn and winter stubble in solar greenhouse with drip irrigation, when the irrigation cycle is 2 days, the pan coefficient is taken as 01 8 ~ 11 0, yield and irrigation water use efficiency are both High, recommended as the stubble irrigation system technical indicators.