不同密度和不同施肥水平对后季稻早育抛栽群体质量和产量的影响

Effect of Different Density and Different Fertilization Level on Population Quality and Yield of Drgland Seedlings Throw-transplanted Later Rice

采用密度、肥料二因素不同处理水平裂区设计试验,对后季稻旱育抛栽种植方式在不同密度和不同施肥水平条件下茎蘖动态、叶面积变化、干物质积累、光合势、光合生产率、穗粒结构、产量表现及其抗逆性进行研究,探明不同密度和施肥水平对群体质量和产量的影响,以期为制定其高产栽培技术措施提供理论依据。

Applying the block design field experiments of different teatments for density and fertilizer two factors,researched the growth characteristics of dryland seedlings throw-transplanted later rice under differ ent density and different fertilization level,including developments dynamics of seedlings number,changes of leaf area,accumulations of dry matter,photosynthetic capacity,net photosynthetic rate,yield structure including ear number and filled grains,yield results,adverse resistance. To look forward to verifying the effect of different density and different fertilization level on population quality and yield. To provide theoretical basis to design high-yielding cultivation measure.