摘要
比较研究了硅对杂交粳稻和常规粳稻干物质与养分积累及产量的影响 ,结果表明 :施用硅肥对杂交粳稻增加籽粒产量、提高干物质积累量的效应大于常规粳稻 ;同时在促进水稻植株对 N、P和 K吸收的作用上 ,也表现出对杂交粳稻的作用较为明显 ,尤其对促进 K的吸收 ,效应更为明显 .杂交粳稻对硅的需求量高于常规粳稻 .
The effects of silicon on dry matter and nutrient accumulations and grain yield in hybrid Japonica rice were studied and the results summarized below: increase in grain yield and dry matter accumulation as a result of silicon application was more remarkable in hybrid Japonica rice than in normal Japonica rice. Absorption of nitrogen, phosphorus and potassium by rice plant was enhanced by silicon application and this effect was also more obvious in hybrid Japonica rice than in normal japonica rice, especially in case of potassium. Demand for silicon was higher in hybrid Japonica rice plant. Thus, application of silicon as a prospective measure in high or super high yield culture of hybrid Japonica rice deserves our due attention.
出处
《浙江大学学报(农业与生命科学版)》
CAS
CSCD
北大核心
2002年第1期22-26,共5页
Journal of Zhejiang University:Agriculture and Life Sciences
基金
浙江省科技厅重点科技攻关项目资助课题( 98110 2 3 13)
关键词
硅
杂交粳稻
干物质
养分积累
产量
silicon
hybrid japonica rice
dry matter
nutrient
grain yield