不同时期水肥藕合对旱地小麦光合特性和产量的影响  

Effect of Irrigation Combined with Fertilization in Different Stage of Wheat on Photosynthetic Characteristics and Yield in Dry Land Field

作　　者：赵海祯[1] 梁哲军[1] 齐宏立[1] 王玉香[1] 邵新胜[1] 聂安全[1] 

机构地区：[1]山西省农科院棉花研究所,山西运城044000

出　　处：《华北农学报》2002年第z1期61-65,共5页Acta Agriculturae Boreali-Sinica

摘　　要：以旱地小麦晋麦 4 7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 2 0m3+N2 0 P2 0 K16 )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 +N2 0 P2 0 K16 )高出 4 1 4 6 % ,31 79% ,10 5 2 8%和 97 8%。产量比对照高出 30 5 %。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。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.

关 键 词：不同时期 旱地小麦 水肥藕合 光合特性 

分 类 号：S512.01[农业科学—作物学]