不同肥料增效剂对青稞产量与土壤养分的影响

Effects of Different Fertilizer Synergists on Yield of Highland Barley and Soil Nutrients

在西藏拉萨市林周县开展3种新型肥料增效剂配合商品有机肥施用田间试验,测试其在提高作物产量、提升肥效、增加农牧民收入、对土壤养分影响等方面的效果。结果表明:①在施用3种肥料增效剂后,土壤中有机质、全氮、碱解氮、有效磷养分含量下降,所施入商品有机肥肥料利用率、肥料偏生产力提高,商品有机肥当季肥效发挥作用增强。②3个增效剂处理均表现出增产效果,对照最高增产达64.64%。③施用肥料增效剂于商品有机肥,增加了农牧民种植经济收入,对照增收最高达390.03元/667 m^(2),在有政策资金扶持的商品有机肥推广区域,配施新型肥料增效剂可作为农牧民群众节本增收的新思路。

In Linzhou County of Lhasa City,field trials of three new fertilizer synergists combined with commercial organic fertilizer were carried out to demonstrate their effects on improving crop yield,improving fertilizer efficiency,increasing farmers'and herdsmen's income,and influencing soil nutrients.The results showed as follows:①After the application of the three fertilizer synergists,the contents of organic matter,total nitrogen,alkali hydrolyzed nitrogen and available phosphorus in the soil decreased,the utilization rate of commercial organic fertilizer and partial productivity of fertil⁃izer increased,and the effect of commercial organic fertilizer in the season was enhanced.②All the three synergists showed the effect of increasing yield with the highest increase of 64.64%,compared with control.③The application of fertilizer synergists in commercial organic fertilizers increased the economic income of farmers and herdsmen in planting,with the maximum increase of 390.03 yuan/667m^(2).In the promotion area of commercial or⁃ganic fertilizers supported by policy funds,the application of new fertilizer synergists can be used as a new idea for farmers and herdsmen to save costs and increase incomes.