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自农村实行生产承包责任制后,各地普遍出现以化肥为主的投肥倾向,有机肥的施用明显减少,有机与无机肥的投入比例严重失调,导致土壤地力下降,化肥利用率降低,影响了水稻生产的进一步发展。针对这一情况,我们从1986年冬开始,在省土肥总站的指导下,以怀乡镇为重点,开展“绿肥高产压青—杂交水稻良种—优化配方施肥”三配套的综合技术试验示范并推广应用。在绿肥压青、培肥地力的基础上,推广耐肥、丰产、抗病、抗
Since the implementation of production contract responsibility system in rural areas, fertilizer-based fertilization tendencies are commonly found everywhere, the application of organic fertilizers significantly reduced, the proportion of organic and inorganic fertilizers serious imbalance, resulting in decreased soil fertility, fertilizer use efficiency decreased, affecting Further development of rice production. In response to this situation, we started from the winter of 1986, under the guidance of the Provincial Department of soil and fat terminus, focusing on the township of Huaihe, to carry out comprehensive technology demonstration and promotion of “three kinds of supporting green manure with high yielding pressure - hybrid rice seed - optimize formula fertilizer” application. On the basis of green manure greening and fertilizing fertility, we will promote fertilizer-resistant, high-yielding, disease-resistant and anti-fertility