硅肥对水稻茎秆SiO_2含量与抗折力的影响  

The Effect of Silicon Fertilizer on SiO_2 Content and Flexural Strength of Rice Stems

作　　者：邓接楼[1] 付国良[1] 晏燕花[1] 

机构地区：[1]上饶师范学院,江西上饶334001

出　　处：《安徽农业科学》2011年第5期2696-2698,2803,共4页Journal of Anhui Agricultural Sciences

基　　金：江西省自然基金项目(2009GZN0097);江西省教育厅科技项目(GJJ10610);江西省农业科技支撑计划项目(2010BNB02200)

摘　　要：[目的]研究硅肥对水稻茎秆SiO2含量与抗折力的影响。[方法]以3个不同水稻品种为材料,研究不同量硅肥对水稻茎秆SiO2含量与抗折力的影响。[结果]在一定量内,随施加硅肥量的增加,水稻茎杆SiO2含量与抗折力增大;但超过一定量时,则不再继续增加。且水稻茎秆中SiO2含量与茎秆外径、壁厚及抗折力呈正相关,且呈典型的一次函数关系。但对于不同品种,它们之间的正相关率不同,且不同品种水稻所需的最大硅肥量不同。[结论]施加硅肥是提高水稻硅质化程度的关键。[Objective]The aim was to study silicon fertilizer on SiO2 content and flexural strength of rice stems.[Method] Three different rice varieties were used to study the effects of different amounts silicon fertilizer on SiO2 content and flexural strength of rice stems.[Result]The results showed that within a certain amount,with the increase of silicon fertilizer,SiO2 content and fracture resistance of rice stems increased;but more than a certain amount,were no longer continue to increase.And the rice stem diameter,wall thickness and bending strength was positively related to SiO2 content as a typical linear function.But the rate of positive correlation between the different varieties of rice was different,and the amount of required maximum silicon was different.[Conclusion] Exerting silicon fertilizer was key to improve rice silicon qualitative degree.

关 键 词：水稻 硅肥 SIO2含量 抗折力 

分 类 号：S511[农业科学—作物学]