低洼水田夺高产的几项关键技术辽阳县农业技术推广中心杨振福低洼水田的特点是，地下水位高，田水向下渗透慢，土壤中氧气含量少。土壤受死水长时间浸泡易产生有害气体，危害水稻根系，使之逐渐衰弱腐烂，造成植株早衰而减产。因此，在低洼水田种稻，必须针对其特点，采取... Low-lying paddy fields to win a few high-yielding key technologies Liaoyang County Agricultural Technology Promotion Center Yang Zhenfu low-lying paddy fields are characterized by high groundwater levels, infiltration of Tianshui down slow, less oxygen in the soil. The soil is easy to produce harmful gas when it is immersed in dead water for a long time, endangering the rice roots, making it gradually decay and decay, causing the plants to decline prematurely and reduce the yield. Therefore, paddy rice in low-lying paddy fields, must be aimed at its characteristics, take ...