日光温室茄子膜下滴灌耗水规律研究

Study on Water Consumption Regularity for Eggplant under Film-mulched Drip Irrigation in Greenhouse

为了制定日光温室茄子的膜下滴灌灌溉制度,对日光温室茄子的膜下滴灌耗水规律进行了研究。结果表明:在膜下滴灌条件下,日光温室茄子在定植后经过一周的缓苗期之后生长逐渐加速,耗水量随之加大;除灌12水的丰水处理(T5)在结果后期耗水量达到最大值外,其他4个处理的耗水量均在结果前期达到最大值。通过对茄子产量与总耗水量进行回归分析可知,在日光温室膜下滴灌条件下,茄子产量与总耗水量之间呈二次曲线关系,茄子整个生育期的最佳耗水量为205.06 mm。

In order to establish the drip irrigation schedule under mulch for eggplant in greenhouse,the water consumption regularity for eggplant under film-mulched drip irrigation in greenhouse was studied.The results showed that the growth rate and water consumption increased constantly after transplant seedling for one week.The treatments of sufficient irrigation about 12 times reached the maximum water consumption at the later fruiting stage,whereas,the other four irrigation treatments reached the maximum value at the early fruiting stage.There was a quadratic curve relation between the yield and water consumption of eggplant by the regression analysis method.Then we concluded that the optimum water requirement was 205.06 mm during the whole period of eggplant under film-mulched drip irrigation in greenhouse.