施用沤麻废水对黑麦草生长和土壤理化性质的影响  

Impact of retting flax water on the growth of ryegrass and the treated soils in a cold area

作　　者：张瑞[1] 

机构地区：[1]中华环境保护基金会,北京市100062

出　　处：《中国农机化学报》2014年第1期72-74,共3页Journal of Chinese Agricultural Mechanization

摘　　要：采用沤麻废水对黑麦草进行灌溉作用,研究其对黑麦草生长和土壤理化性质改变的影响。实验结果表明,相比对照小区(未灌溉),沤麻废水对黑麦草的生长,如株高,茎粗,叶面积和分枝数均有较好的促进作用(P<0.01)。与未灌溉作物相比,叶子中营养元素和微量元素(N,P,K,Zn,Fe,Cu,Mg)含量均有所提高,未对作物产生毒害作用,在叶子中未发现重金属元素(Pb,Cr)。灌溉后,土壤中营养元素,微量元素和重金属元素含量有所增加,重金属含量低于土壤环境质量标准(GB15618-1995二级)。试验结果表明,沤麻废水可以为作物提供充足的营养元素和微量元素,促进作物生长,在施用沤麻废水时需要注意土壤中重金属元素的富集情况。The effects of retting flax water irrigation on the growth of ryegrass and the soil were studied and the results were as follows： the growth of ryegrass as indicated by total height, stem diameter, leaf area and shoot number were better than that of stand without irrigation （P〈0.01） . Plant analysis indicated that concentrations of nutrients and micronutrients （N, P, K, Na, Fe, Cu, Mg） in leaf under retting flax water irrigation than those of ryegrass without irrigation. Heavy metals （Pb, Cr） were not detected in leaf of ryegrass. Application of retting flax water resulted in an increase in the concentrations of nutrients, micronutrients and heavy metals in soil. So results confirm that retting flax water was a potential source of nutrients and micronutrients for plants and promote the growth of ryegrass. However, the accumulation of heavy metals in soil needs to be monitored.

关 键 词：沤麻废水 黑麦草 土壤 重金属 

分 类 号：S688.4[农业科学—观赏园艺]