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在长江中下游地区,单季晚稻移栽期与梅雨季节相吻,以致肥床旱育秧在拔秧时出现两大问题:一是因连绵梅雨秧田土壤湿度大,拔秧时秧苗严重带土,倍量增加拔秧移栽时的劳动强度。二是由于肥床旱育秧原生长在低湿土壤条件下,当秧苗生长后期遇到梅雨时,秧苗突发暴长、素质下降,秧苗移栽后虽然败苗仍较少,但蹲苗期比水育秧更长。由于上述问题的存在,致使单季晚稻肥床旱育秧在该地区长期不能推开。为解决这一矛盾,我站总结以往肥床旱育秧的经验和教训,设计出一种水稻肥床旱育秧轻型培育法。此法在本镇连续三年示范,受到当地农户的欢迎。
In the middle and lower reaches of the Yangtze River, the single-season late rice transplanting period matches with the rainy season, resulting in two problems in the seedling bed nursery seedling raising and transplanting: one is the heavy soil moisture due to continuous plum rain seedling, Multiplying the amount of labor increased when transplanted seedlings. Second, due to the growth of fertile bed dry seedling growth in low-moisture soil conditions, when the late growth of seedlings met with the rainy season, the sudden emergence of seedlings, the quality decline, although transplanting seedlings are still less after transplanting, but the squat seedling than aquatic seedlings Longer. Due to the above problems, resulting in single-season late rice bed dry nursery seedlings in the region can not be long-term open. In order to solve this contradiction, I summarize the experience and lessons learned in the past years on dryland seedling cultivation and design a light cultivation method for paddy seedlings. This method in the town for three consecutive years demonstration, by the local farmers welcome.