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- Title
密度和氮肥互作对老芒麦种子产量和活力的影响.
- Authors
王茹佳; 唐凤; 张树振; 张永超; 罗金; 陈映霞; 张磊; 张博
- Abstract
【Objective】 To study the effects of different densities and nitrogen fertilizer interaction on seed yield and vigor of Elymus sibiricus in Xinjiang, and to provide theoretical basis for seed production of Elymus sibiricus.【Methods】 The split plot design was adopted and two density treatments (258,700 plants/hm²) and high density (715,200 plants /hm²) were set up. Under each density level, 5 nitrogen application treatments were set, including 0, 30, 60, 90 and 120 kg/hm², respectively.【Results】 There were significant differences in seed yield of E. sibiricus under different densities and nitrogen application treatments (P < 0.05); under different density treatments, the highest seed yield was 899.3 kg/hm² at low density (258,700 plants/hm²), 54.3% higher than that under low density and no nitrogen application treatment, and 90 kg/hm² under high density. The highest seed yield was 730.6 kg/hm², and the yield increased by 58.3% under the treatment of higher density and no nitrogen application. The seed vigor of E. sibiricus was significantly increased under the condition of nitrogen density interaction (P < 0.05). The germination potential, germination index, radicle length and seedling fresh weight of low density treatment were significantly higher than those of high density treatments (P < 0.05).【Conclusion】 In the experimental area, under the planting density of 258,700 plants/hm², 90 kg/hm² of nitrogen fertilizer can obtain the high yield and high quality seeds of E. sibiricus.
- Publication
Xinjiang Agricultural Sciences, 2022, Vol 59, Issue 3, p533
- ISSN
1001-4330
- Publication type
Article
- DOI
10.6048/j.issn.1001-4330.2022.03.002