论文部分内容阅读
针对青海东部干旱山区的自然特点，提出雨水集流的可行性及获得３７５０ｋｇ／ｈｍ２产量的最佳补水量（１２７．５—１９５ｍ３／ｈｍ２）、补水时间（５月下旬至６月中旬）和施肥量（尿素和二铵各２２５ｋｇ／ｈｍ２）。产量增长率达到１６．８％，补灌１ｍｍ水生产粮食３１．５ｋｇ／ｈｍ２。
According to the natural characteristics of the arid mountainous area in the eastern part of Qinghai, the feasibility of rainwater harvesting and the optimal recharge of 3750kg / hm2 (127.5-195m3 / hm2) were obtained. The recharge time (late May to mid June) and fertilization Quantity (urea and diammonium each 225kg / hm2). Production growth rate reached 16.8%, fill irrigation 1mm water production of grain 31.5kg / hm2.