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喷灌与畦灌对比,喷灌增产、省水;对地温影响小;不板地、利于保墒;喷撒均匀,省工,效率高;有利于小麦生长发育;可减少沟渠眭埂占地,便于机械作业;调节田间小气侯。喷灌条件下,在一定范围内,小麦叶面积指数与产量、干物重分別呈明显的正相关。旗叶面积与产量、干物重也呈明显的正相关。旗叶面积与叶面积指数呈明显的正相关。叶面积,特别是旗叶面积在积累干物质,创造小麦丰产过程中,具有十分重要的作用,是重要的长相指标。株高也是重要的长相指标。对于同一品种来说,株高与干物重、单株粒重、单位面积产量分别呈明显的正相关。株高与叶面积指数与旗叶面积也呈
Sprinkler irrigation and irrigation contrast, sprinkler irrigation yield, save water; little impact on the ground temperature; not plate, which will help maintain soil moisture; spraying uniform, labor-saving, high efficiency; conducive to wheat growth and development; ; Regulate the climate in the field. Sprinkler irrigation conditions, within a certain range, wheat leaf area index and yield, dry weight were significantly positively correlated. Flag leaf area and yield, dry weight also showed a significant positive correlation. Flag leaf area and leaf area index showed a significant positive correlation. Leaf area, especially the area of flag leaves, plays an important role in accumulating dry matter and creating high yield of wheat, which is an important index of longitude. Plant height is also an important aspect indicator. For the same species, plant height and dry weight, grain weight per plant, yield per unit area were significantly positive correlation. Plant height and leaf area index and flag leaf area also showed