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- Title
不同灌溉方式下养分配置对冬小麦灌浆期光合特性及产量的影响.
- Authors
潘晓莹; 武继承; 杨永辉; 何 方; 张洁梅; 王 越
- Abstract
In order to explore the best irrigation method and nutrient allocation combination pattern for winter wheat, the effects of three kinds of irrigation methods( sprinkling irrigation, mobile sprinkler irrigation and small white dragon irrigation) and different nutrient allocation on flag leaf net photosynthesis rate, stomatal conductance, intercellular CO2 concentration, transpiration rate and grain yield were studied with Bainong 207 as experimental material. The results showed that compared with single basal application treatment, basal application + top dressing treatment could effectively improve the net photosynthesis rate and yield of winter wheat, the yield of sprinkling irrigation, mobile sprinkler irrigation and small white dragon irrigation treatments increased by 4. 19%—5. 55% ,5. 90%—8. 01% ,4. 13%—7.97% ,respectively. The photosynthetic characteristics and yield of sprinkling irrigation treatment comprehensive were better than those of mobile sprinkler irrigation and small white dragon irrigation treatments, the order of winter wheat yield was sprinkling irrigation > mobile sprinkler irrigation > small white dragon irrigation. Under sprinkler irrigation condition, the yield of T8 treatment ( basal N28P15K5of 375 kg/ha + basal con-trolled-release fertilizer of 300 kg/ha + top dressing N of 75 kg/ha) was the highest, which was 10 360.05 kg/ha; the net photosynthesis rate of T7 treatment was the highest, which was 19. 41 μmol/( m2 . s) , followed by T8 treatment, there was no significant difference between them; the stomatal conductance of T7 treatment was the highest, followed by T2, T8 treatments, there was no significant difference among them; the intercellular CO2 concentration of T7 treatment was the lowest, there was no significant difference among the other treatments; the transpiration rate of T1 treatment was the lowest, there was no significant difference among the other treatments. According to comprehensive analysis, the best combination of irrigation mode and nutrient allocation was sprinkler irrigation + basal N28P15K5 of 375 kg/ha + basal controlled-release fertilizer of 300 kg/ha + top dressing N of 75 kg/ha.
- Publication
Journal of Henan Agricultural Sciences, 2018, Vol 47, Issue 10, p21
- ISSN
1004-3268
- Publication type
Article
- DOI
10.15933/j.cnki.1004-3268.2018.10.004