硅、钾、镁配比施用对水稻干物质积累的影响

采用随机取组设计对硅钾镁三元肥料不同配比对水稻干物质积累及与产量的关系进行了试验。结果表明,成熟期干物质积累量与产量成正相关;本试验条件下,硅肥和镁肥可明显的提高水稻的干物质积累量,钾肥效果不明显;合理配施硅、钾、镁肥优化出龙粳14的最高干物质量为21755.24kg·hm^-2,相应的SiO2、K2O、MgO的用量为90,82.8,29.25kg·hm^-2;垦鉴稻10号的最高干物质量为25473.5kg·hm^-2,相应的SiO2、K2O、MgO的用量为43.78,82.8,29.25kg·hm^-2。

Effect of rational ratio of silicon,potassium and magnesium fertilizers on dry matter accumulation of rice

The experiment used the randomized plot design,through Silicon, potassium and Magnesium the 3 dollars fertilizer was on the rice of dry matter accumulation experiment we can drew these Conclusions： The maturity amount of dry matter accumulation and yield were positively correlated; Under the experimental conditions, Silicon and magnesium fertilizer can be improved dry matter accumulation of rice, potassium fertilizer effect was not obvious; a reasonable fertilizer silicon, potassium, magnesium fertilizer to optimize the long Jing 14 the highest dry matter of 21 755.24 kg·hm^-2 corresponding the amount of fertilizer was： SiO290,K2O82.8, MGO29.25 kg·hm^-2; The highest dry matter of Ken jian dao 10 can reach to 25 473.5 kg·hm^-2, corresponding the amount of fertilizer was： SiO43.78, K2O82.8, MgO29.25 kg·hm^-2.