水稻旱作虽是种在旱田里不淹水层,主要靠自然降水满足水稻对水分的需要,但由于自然降水在年度、月份和旬別间分布不平衡,不进行人工灌溉,就不能使旱作水稻稳产高产。可是何时最需要灌溉,灌水量多少合适,都没有经验,因此对旱作水稻田的灌溉问题进行了初步研究。 Although dry cultivation of paddy rice is not flooded in the dry land, mainly by natural precipitation to meet the water needs of rice, but because of the uneven distribution of annual precipitation in the year, month and ten days, without artificial irrigation, it can not make the drought Make rice stable and yield high. However, when is the most needed irrigation, the amount of irrigation is appropriate, have no experience, so the problem of irrigated rice in dry land for a preliminary study.