摘要： 以旱地小麦晋麦47号为试验材料,研究了不同时期水肥藕合方式对旱地小麦光合速率和产量的影响。结果表明:不同时期水肥藕合对旱地小麦灌浆期光合性能和产量具有明显差异。其中拔节期水肥藕合方式(补水20m³+N₂₀P₂₀K₁₆)的净光合速率、蒸腾速率、气孔导度和胞间CO₂浓度分别比对照(不补水+N₂₀P₂₀K₁₆)高出4146%,3179%,10528%和978%。产量比对照高出305%。小麦增产影响因素通径分析为:单位面积成穗数>穗粒数>千粒重。

关键词: 不同时期, 旱地小麦, 水肥藕合, 光合特性

Abstract: The effect of irrigation combined with fertilization in different stage of wheat on photosynthetic characteristics and yield in dry land field were studied with breeds of wheat called jinmai 47.The results showed that the effect of photosynthetic characteristics and yield under different combination of irrigation and fertilization in different stage of wheat were significantly affected.The water and fertilizer combination at elongation of wheat was the best.Its yield were higher than the way without supplement water in whole growth term.According to the correlation analysis,spike number per area was highest in the three patterns,kernel number per spike was second and 1000 kernel weight was low.

Key words: Different stage, Wheat in dry land field, Irrigation and fertilization, Photosynthetic characteristics

中图分类号: 

• S512.01