8Abdullah Baran.Characterization of carex peat using extinction values of humic acids[J].Bioresource Technology,2002,85:99-101.
9Wang H Y,Zhou J M,Chen X Q,et al.Interaction of NPK fertilizer on nitrogen uptake and nitrate leaching in a Eum-orthic anthrosols profile[J].Nutrient Cycling in Agroecosystems,1997,48:225-229.
