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为了研究超高交水稻最大承载能力 ,比较了超级杂交稻苗头组合培矮 6 4S/ E32较三系高产杂交组合汕优6 3在植株钾、硅和纤维素等方面的诸多差异 :超级杂交稻植株钾、硅和纤维素总量表现出明显的优势 ;比较其干重百分率 ,两组合钾差异不显著 ,但超级杂交稻茎节间硅和纤维素含量具有优势 ;超级杂交稻齐穗后节间的钾和硅淀积作用明显 ,叶片的钾撤退相对较少 ;高肥条件下超级杂交稻植株钾、硅和纤维素总量因其干重增加而增多 ,其中叶鞘各要素的增重十分明显 ,高肥条件下干重百分率普遍下降 ,尤以硅为甚
In order to study the maximum carrying capacity of super-high-yielding rice, we compared the differences in potassium, silicon and cellulose of super-high-yielding hybrid rice Pei’ai 64S / E32, Total potassium, silicon and cellulose showed obvious advantages. Compared with the percentage of dry weight, the difference between two combinations of potassium was not significant, but the contents of silicon and cellulose in the internodes of super hybrid rice had the advantage. Potassium and silicon deposition were obvious, and the leaf potassium withdrawal was relatively less. The total potassium, silicon and cellulose in super hybrid rice increased with the increase of dry weight under high fertilizer conditions, and the weight gain of each element of leaf sheath was very high Obviously, the percentage of dry weight under high-fat conditions generally dropped, especially for silicon