摘要
采用"3414"设计对硅钾镁三元肥料不同配比对水稻光合特性及产量的影响进行了试验。结果表明:(1)硅、钾、镁合理配施有利于提高水稻的产量和光合特性。(2)本试验条件下,合理配施硅、钾、镁肥最高理论产量可达17602.5kg·hm-2,相应的SiO2、K2O、MgO的用量为11.25,82.8,29.25kg·hm-2,最佳经济效益理论产量为17592kg·hm-2,相应的SiO2、K2O、MgO施肥量为9.6,82.8,29.25kg·hm-2。(3)三种肥料中,钾肥最有利于提高水稻的千粒重和平方米穗数,对水稻产量的贡献最大,镁肥次之,硅肥对水稻产量贡献最小。
＂3414＂design was used to study the effect of the different rational ratio of the 3 dollars fertilizer of silicon, potassium and magnesium on photosynthetic characters and yield of rice. The results as followed： （ 1 ）The reasonable ratio of silicon, potassium and magnesium was advantageous to increase the yield and photosynthetic characters. （2） In the experiment, under the reasonable ratio of silicon, potassium and magnesium, the academic highest output could reach 17 602.5 kg·hm^-2, the amount of SiO2,K2O and MgO was respectively 11.25,82.8 and 29.25 kg·hm^-2, the best economic output was17 592 kg·hm^-2 , the amount of SiO2,K2O and MgO was respectively 9.6,82.8 and29.25 kg·hm^-2.（3） In the three fertilizer, potassium fertilizer was most remarkable to promote the weight of thousand grain ,the spike number per square meter and the production of rice, the second was magnesium fertilizer and the Silicon fertilizer was the last of the three.
出处
《黑龙江八一农垦大学学报》
2008年第4期19-22,共4页
journal of heilongjiang bayi agricultural university
关键词
水稻
硅、钾、镁配比
光合特性
产量
rice
the ratio of silicon ,potassium and magnesium
photosynthetic characters
yield
