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农村不少农户长期使用同一块秧田,而且用养脱节,导致秧田耕作层变浅、通透性变差、土性变冷、土温低、有效养分缺乏,育出的秧苗扎根扶针后出叶缓慢,长势极差,而且耗肥严重,易感病。对这类老化秧田,可从以下方面进行改良。(一)提前耕耖晒垡,促进土壤熟化育秧前尽量提早耕耖晒垡,有利改善土壤温、气状况。若为冬闲田,秋收后抓紧翻耕,实行冬季晒垡冻土。春后再耕耖,晒垡,使土壤进一步熟化。
Many farmers in rural areas use the same seedling for a long period of time, and raising and removing the stalks lead to shallowing of the tillage plow layer, poor permeability, cold soil, low soil temperature and lack of available nutrients. Leaves are slow, very poor, and the serious depletion of fertilizer, susceptible to disease. For such aging seedling, can be improved from the following aspects. (A) advance plowing sun drying, and promote soil maturity as early as possible to cultivate sunning sunning before planting, will help improve soil temperature and gas conditions. If the winter idyllic field, pay close attention to tillage after the harvest, the implementation of the winter sun permafrost. Spring plow, drying, so that the soil further maturation.