摘要
根据1992年的试验资料,对半干旱地区马铃薯田水分平衡进行了初步分析。结果表明,全生育期需水量317.3 mm,耗水量250.5 mm,水分亏缺量66.8 mm;水分满足率为78.9%,秋霜冻导致马铃薯减产,使水分生产效率降低。
The water balance in potato field were analysed in Semi-drought region by experimental plot data in 1992.The results showed that the water requirement was 317.3 mm,water consumption 250.5 mm.water diffcient capacity 66.8 mm,and the water satisfaction rate 78.9% in growing period,as well as influence of autumn frost and it brought out the potato reduction in yield and decreased water productive efficiency.
关键词
马铃薯
需水量
耗水量
水分平衡
potato
water requirement
water consumption
water dificient number
water balance
