论文部分内容阅读
对华北地区日光温室冬春茬黄瓜产量与灌水量的关系进行了研究，黄瓜于１１月２５日播种，翌年１月１０日定植，从定植到拉秧１４０ｄ（天），设５个灌水量处理（１６２．５～４８４．１ｍ３·６６７ｍ－２）。结果表明，黄瓜产量（９１９２～１２９３３ｋｇ·６６７ｍ－２）随灌水量的增加而增加，灌水利用效率则随之减少，黄瓜品质有下降的趋势。利用含盐量２．２ｇ·Ｌ－１微咸水灌溉，土壤盐分累积显著，但土壤表层盐分随灌水量的增加而减少。
The relationship between yield and irrigation volume of winter and spring cucumbers in solar greenhouse in North China was studied. The cucumbers were sown on November 25 and planted on January 10 of the next year. From planting to planting 140 days (day), five irrigation treatments (162.5 ~ 484.1m3 · 667m-2). The results showed that the yield of cucumber (9192 ~ 12933kg · 667m-2) increased with the increase of irrigation water while the irrigation efficiency decreased, and the quality of cucumber decreased. Salinity was significantly increased with brackish water with salt content of 2.2 g · L-1, but salinity of soil surface decreased with the increase of irrigation water.