水稻叶龄模式栽培是江苏农学院凌启鸿等教授研究出的科技成果。这项技术的关键就是依据水稻主茎的不同叶龄期而采取相应的技术措施,夺取水稻高产。 1.水稻主茎总叶数 ①早稻类型:早熟11叶,中熟12叶,迟熟13叶,杂交早稻如威优早1、威优48也为13叶。这类品种伸长节间数为4个。②中稻类型:早熟14叶,中熟15～16叶,迟熟17～18叶。伸长节间数 Rice leaf age model is cultivated by Jiangsu Agricultural College Lingqi Hong and other professors to study the scientific and technological achievements. The key of this technology is to adopt the corresponding technical measures according to the different leaf ages of the main stems of rice to obtain high yield of rice. 1. The total number of leaves of main stem ① The type of early rice: 11 premature, mid-maturity 12 leaves, late 13 leaves, early hybrid rice such as Wei You early 1, Weiyou 48 also 13 leaves. Such varieties of internodes for the four. ② medium type: early 14 leaves, medium maturing 15 to 16 leaves, late maturity 17 to 18 leaves. Extend the number of internodes