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有的早稻秧,特别是翻秋秧插下不久常出现早穗现象,南方叫出“老仔”。如不及时进行处理,会因分蘖很少,主苗过早抽的穗短小,谷粒小而轻,造成严重减产。一、早穗原因和类型早稻(包括翻秋)早穗的主要内在原因是,一般早稻类型的品种特性是强感温性的。在一定的日照条件下,生育期长短主要受温度所左右。高温可使生育期缩短30％(主要缩短幼穗分化前的营养生长期)。高
Some early rice seedlings, especially the fall seedlings inserted soon appeared early panicle phenomenon, the southern called “Lao Tsai.” If not processed in time, due to very few tillers, the main sprouts premature spike short, small and light grain, resulting in serious cuts. First, the cause and type of early rice Early rice (including turning autumn) The main reason for the early panicle is that the general characteristics of early rice varieties are strongly thermosensitive. Under certain sunshine conditions, the length of growth period mainly depends on the temperature. High temperature can shorten the growing period by 30% (mainly to shorten the vegetative growth period before spike differentiation). high