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本文探讨了不同灌水 (灌水期、灌水量和水质 )对冬小麦生长发育和产量的影响。结果表明 :咸淡轮灌与灌淡水比 ,早期干物质积累慢 ,L AI低 ,但后期积累养分能顺利转移到穗部 ,灌浆速度较快 ,也能获得高产。冬后关键期灌水 ,咸淡轮灌比灌淡水处理LAI较低 ,但茎叶干物质积累量较多的转移到籽粒中 ,灌浆速度快 ,二者籽粒产量无显著差异。关键期灌水处理的籽粒产量略低于充足灌水处理 ,但水分利用率较高。在充足灌水的基础上 ,施肥处理的 L AI、灌浆速度和籽粒产量显著大于不施肥处理
This article explores the effects of different irrigation (irrigation, irrigation and water quality) on the growth and yield of winter wheat. The results showed that the early dry matter accumulation was slow and the L AI was low, but the late accumulation of nutrients could be transferred to the ear smoothly, and the filling speed was faster and the yield was higher. After the winter irrigation, the LAI of saltwater irrigation was lower than that of irrigation freshwater treatment, but the dry matter accumulation of stems and leaves was more transferred to the grain, and the grain filling rate was faster. There was no significant difference in grain yield between the two treatments. The grain yield of the key period irrigation was slightly lower than that of adequate irrigation, but the water use efficiency was higher. On the basis of adequate irrigation, L AI, grain filling rate and grain yield of fertilization treatments were significantly higher than those of no fertilization treatments