磷硅肥与过磷酸钙对杂交水稻肥效比较

Effected comparison between phosphosilicon fertilizers and calcium superphosphate in hybrid rice

田间小区试验、多点示范试验和分析测定结果表明：磷硅肥对杂交水稻有９２％的显著性增产效果；在等磷量或等价值用肥条件下，效果均优于过磷酸钙；能促进杂交水稻健壮生长，增强抗性，剑叶面积扩大；有效提高土壤有效磷含量、土壤有效硅含量和剑叶硅含量。

The experiments were conducted to study the effect of phosphosilicon fertilizers(PSi) and calcium phosphate application(PC) in the hybrid rice.The results showed that the application of phosphosilicon fertilizers increased the yield of the hybrid rice significantly. Its more effective to use PSi than to use PC in the application of equal rate or in the application of equal value. PSi promoted the growth of hybrid rice and the area of the flag leaves was increased. The contents of available P and Si in the soil were increased. The content of Si in the flag leaves was increased.