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培育壮秧,需要综合的技术措施,但从最近几年育秧的情况看,以气象的角度来说,应着重注意处理好如下几个问题。 一、适时播种 最佳的早稻播种期,不仅要考虑避免烂秧和培育壮秧,而且要使早稻全生育期处于良好的气候条件下而有利于增产。早稻适宜播种期一般应具体考虑如下几方面:(1)播种期间天气适宜;(2)移栽期日平均气温稳定在15℃以上;(3)分蘖期温度在18℃以上,幼穗分化期日平均气温稳定在21℃以上,能避过“五月寒”;(4)不影响晚稻季节。
Nurturing strong seedlings, the need for comprehensive technical measures, but from the situation of nursery seedlings in recent years, the weather point of view, should pay attention to deal with the following questions. First, timely sowing the best early rice sowing period, not only to consider avoiding rotting and cultivating strong seedlings, but also to make early rice throughout the growth period in good weather conditions and help increase production. The suitable sowing date for early rice should generally consider the following aspects in detail: (1) the weather is suitable during sowing; (2) the average daily temperature at transplanting is stable above 15 ℃; (3) the tillering temperature is above 18 ℃, Temperatures stabilized above 21 ℃, can avoid the “May cold”; (4) does not affect the late rice season.