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低产田是当前“两高一优”农业生产的主要障碍。全国低产田的面积估计有1/3或更多。其特点是:酸、碱、粘、沙、冷、瘦、荒,导致土壤耕性差,作物生长孬,单产低,经济效益差。我们针对低产田提出改进和治理措施,供参考。酸①使用生石灰中和酸性,每667平方米40～50公斤,在整地时均?
Low yield field is the main obstacle to the current “two high and one excellent” agricultural production. The estimated area of low-yielding fields in the country is one-third or more. Its characteristics are: acid, alkali, sticky, sand, cold, thin, shortage, resulting in poor soil plow, crop growth 孬, low yield, poor economic efficiency. We propose improvements and control measures for low yield fields for reference. Acid ① use of lime and acidic, each 667 square meters 40 ~ 50 kilograms, both during land preparation?