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对二系稻组合赣化7号和 W6154/早特青的吸肥特性进行了研究.结果表明:二系稻组合的氮、磷、钾吸收总量较汕优63高,且在秧田期有明显的营养吸收优势.二系稻组合抽穗后的吸氮强度及吸肥量亦较高.吸肥量较多的组合,生物产量和经济产量均高.赣化7号的产量优势较明显,但单位产量的肥料吸收量,三个组合间无明显差异.
The results showed that the absorption of nitrogen, phosphorus and potassium of two-line hybrid rice was higher than that of Shanyou 63, Obvious advantages of nutrition absorption.Secondly, the nitrogen absorption intensity and the amount of fat absorption of two-line rice combinations after heading were also higher.The combinations with higher absorption of fat had higher biological yield and economic yield.The yield superiority of Gan-7 was more obvious, However, the amount of fertilizer absorbed per unit yield did not differ significantly among the three combinations.