摘要
以甬优水稻群体指标包括538和秀水134为实验材料,研究叶面积指数、生物量、茎鞘干物质量、有效穗数等指标在水稻不同生长时期以及不同时施肥量下的表现及其对水稻产量的影响。结果表明,水稻的叶面积指数与产量呈抛物线关系,在不同的生育期最适叶面积指数也不同。水稻群体指标中较有代表性的生物量和茎鞘干物质量与产量呈极显著的正相关性,在不同时期相关性不同,是否投入肥料对生物量产出及产量有重大影响。研究建立了适用于浙江稻区的水稻最适群体指标动态,分析了不同时期水稻叶面积指数,生物量,茎鞘干物质量与产量的定量关系,从而为浙江省水稻产量的预测和调控提供理论依据。
The Yongyou538and Xiushui134were used as experimental materials to study the effects of leaf area index,biomass,stem and stem dry matter and effective panicle number on rice yield and rice yield were studied under different fertilization conditions.There are different optimal leaf area indices at different growth stages.There was a significant positive correlation between the representative biomass and stem and stem dry matter quality and yield in rice population.Different periods of relevance are different.Whether fertilizers are invested has a significant impact on biomass production and production.In this study,the optimum population dynamics of rice in Zhejiang rice area was established,and the quantitative relationship between leaf area index,biomass,stem and stem dry matter and yield was analyzed,which provided the theoretical basis for the prediction and regulation of rice yield in Zhejiang Province.
作者
费聪
李飞飞
吕尊富
Fei Cong(College of Agriculture and Food Science,Zhejiang Agriculture and Forestry University,Linan 311300,China)
出处
《安徽农学通报》
2018年第23期33-36,共4页
Anhui Agricultural Science Bulletin
