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放干冬水田改一季为两季,是多年来提高水田复种指数增加粮食产量的一个重要方法:但届有一些地方改制后由于整地质量差,排水不好,湿害严重,或者土壤不易化块,在一次放水后,即形成硬块两三年不化,不但小麦产量低、还引起来年大春水稻坐兜低产 。面对这一事实,采用以免耕、浸润为核心的小麦半旱耕作则初步能解决上述问题、例如,半旱小麦能在不排干田水的情况下生长健壮,产量接近或超过当地旱田旱地小麦:
Putting dry winter paddy fields into one season for two seasons is an important method to increase the crop yield of paddy field for many years. However, after some local reforms, due to poor land preparation, poor drainage, severe wetting damage, , After a drain, that is, the formation of lumps of two or three years is not, not only low yields of wheat, but also cause the spring of next year spring paddy low yield. Faced with this fact, the adoption of semi-arid tillering at the core of no-till and infiltration can initially solve the above-mentioned problems. For example, semi-arid wheat can grow robustly without draining field water and its yield is close to or exceeds that of the local dry land Dry land Wheat: