设施滴灌无土栽培红掌耗水规律研究

以连栋日光温室内无土盆栽红掌为试材，根据控制灌水下限占田间持水率90％、80％、70％、60％和50％的比例设置5个处理，系统研究了滴灌条件下气象因子对红掌耗水规律的影响，探讨了Penman-Monteith模型对设施无土栽培红掌耗水的预测。结果表明，供试条件下红掌日耗水量分阶段结果为：移栽至8月中旬0．2～0．4mm...

Water Consumption Regularity of Soilless Culture Anthurium Irrigated by Drip Irrigation in Greenhouse

The experimental Anthurium of this paper was cultivated in multi-span greenhouse and planted in plastic pot with substrate.The five treatments were based on the proportion of low irrigation limit with field moisture capacity,the proportion was 90%,80%,70%,60% and 50% from T1 to T5.Result showed that the daily water consumption amount fluctuated from 0.2 to 0.4 mm/d before middle August,from 0.2 to 0.5 mm/d during middle August and the primary stage of September.The highest daily water consumption amount was about 0.6 mm/d.The Anthurium water consumption amount was about 36.1 to 42.4 mm during experiment.Compared with T1,the water consumption amount decreased 11.0%,5.2%,2.9% and 14.8% from T2 to T5.Penman-Monteith model could be used to calculate the evaportranspiration of Anthurium.