【摘要】 利用可精确控制水分条件的水肥平衡场 ,在不同水肥耦合处理的条件下 ,研究了水肥耦合对春小麦光合特性及产量与蛋白质含量的影响。结果表明 ,不同水肥耦合处理的条件下 ,春小麦灌浆期的光合速率不同 ,其中 ,增施有机肥的处理的光合速率高于不施有机肥的无机肥处理 ,且光合速率衰减率较小 ,表现出良好的产量潜力 ,尽管仅施化肥的处理在充足水分条件下光合速率衰减较自然水处理减缓慢 ,但却没有表现出明显的产量差异 ;光合速率不是增施有机肥处理间蛋白含量差异的原因。在自然降水条件下 ,有机、无机肥配合施用可使春小麦既高产又优质。更多还原

【Abstract】 Using plots with water and fertilizer fully controlled, the effect of photosynthetic characteristics,yield and protein content in spring wheat under different treatments of water and fertilizer coupling were investigated. The result showed that photosynthetic rates were different during grain filling stage among treatments of water and fertilizer coupling, the photosynthetic rate of the manure treatment was higher and the photosynthetic declining rate was lower than that of the chemical fertilizer treatment, and this treatment showed very high potential of yield. Although the photosynthetic declining rate of the chemical fertilizer treatment under the condition of sufficient water was slower than that under the condition of natural water, they didnt evidently show the differences of yield. Photosynthetic rate was not the factor affecting protein content of grain between two treatments. Under natural precipitation, combined use of manure and chemical fertilizer would benefit to high yield and high quality in spring wheat.更多还原