关键词: 花生, 钼酸铵, 拌种量, 旱薄地, 发育, 氮素积累, 产量

Abstract: In order to improve the yield and quality of peanut in dry and thin land and alleviate the lack of molybdenum in peanut planting soil,pot experiments were conducted to set four ammonium molybdate seed dressing amounts of 0(CK),0.5,1.0 and 1.5 g/kg to analyze the effects of ammonium molybdate seed dressing on peanut growth and nitrogen accumulation, and to explore the optimal ammonium molybdate seed dressing amount.The results showed that the seed dressing with ammonium molybdate could promote the vegetative growth and reproductive growth of peanut, improve the leaf area and photosynthetic rate,increase the nitrogen content of organ and yield,and improve the quality of peanut.Among them,application of 1.0—1.5 g/kg ammonium molybdate had the best effect.Compared with the control group, application of 1.5 g/kg ammonium molybdate could increase the flower number, fruit number,pod number per plant and pod volume by 48.43,19.46%,26.49% and 16.39%,improve the leaf area,leaf net photosynthetic rate and productivity per plant by 25.20%,51.08% and 32.74% respectively.Tests had shown that the application of ammonium molybdate could significantly increase peanut vegetative and reproductive growth, promote nitrogen accumulation in various organs, increase peanut yield,and improve peanut quality.

Key words: Peanut, Ammonium molybdate, Seed dressing amount, Poor dry land, Development, Nitrogen accumulation, Yield