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作者针对杂交早稻用种量偏高等问题，从１９８８年以来，试验推广两稀栽培法获得成功。硬床稀播育壮秧，能有效减少由于泥浆塌谷使部分弱芽入泥过深，缺氧闷死；大行稀栽能充分发挥田间小气候效应，发挥杂交稻分薛优势，迅速达到所需苗数，从而实现省种高产。
The authors aimed at the problem of high seed yield in early hybrid rice. Since 1988, the experiment has promoted the success of the cultivation with two sparse cultivars. Hard bed dilute sowing strong seedlings, can effectively reduce the slump due to the mud so that some of the weak sprouts into the mud too deep, suffocated suffocate; Dahon dilute planted to give full play to the field microclimate, hybrid rice points Xue advantage to quickly reach Need seedlings, in order to achieve provincial high yield.