不同形态氮素对肥料利用率影响的研究

Study of Effect of Different Form Nitrogen on Utilization Rate of Fertilizers

根据植物对氮素吸收的机理,提出不同形态氮素协同增效机理,开发了氯基脲铵和硫基脲铵2种形态氮素的新型复合氮肥产品。经在常熟地区的稻麦轮作农田试验验证,新型复合氮肥可以减少氨的挥发,促进作物对氮素的吸收利用;与尿素相比,氯基脲铵和硫基脲铵的氮素利用率分别提高了9.7%和6.4%。

Based on nitrogen absorption mechanism of plant,the synergy mechanism of different forms of nitrogen are suggested,and two new type compound nitrogen fertilizers,i.e.chloride-based urea-ammonium and sulfate-based urea-ammonium,are developed.Tested and verified by experiments on rice-wheat rotation field in Changshu area,the new type compound nitrogen fertilizers can reduce ammonia volatilization,and improve absorption and utilization of nitrogen of plant;compared with urea,chloride-based urea-ammonium and sulfate-based urea-ammonium increase utilization rate of nitrogen by 9.7% and 6.4% respectively.