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为了研究煤基固废与牲畜粪便混合固态发酵基质作为沙土肥料的特性,采用随机区组试验设计,将地质肥料与沙土混合并栽种植物,测定不同施肥处理的物理、化学、生物肥力指标和生产力水平共17个指标,应用方差分析和主成分分析等方法综合分析评价了不同施肥处理的肥力因子以及生产力水平,并对不同施肥处理的培肥效果进行了综合评定。结果表明:与沙土对照相比,不同地质肥料对土壤肥力因子的影响差异显著(P<0.05),能源草的总生物量增加了246.3%~566.4%,土壤容重下降了4.4%~9.5%,土壤速效钾、速效磷和氨氮分别增加了282.4.4%~424.7%、157.2%~296.2%和70.3%~288.0%。通过主成分分析综合评分显示,施用地质肥料处理得分值明显高于施用粪肥处理和未施肥处理对照,同时配施微生物菌剂的处理得分高于未配施微生物菌剂的处理。施用含30%煤基固废的地质肥料,同时配施微生物菌剂,可最大限度的改善沙土的理化特性,显著提高沙土的肥力。
In order to study the characteristics of mixed solid-state fermentation of coal-based solid waste and livestock excrement as the characteristics of sandy soil fertilizers, the randomized block design was used to mix the fertilizers with the sandy soil and planted the plants to determine the physical, chemical and biological fertility indices and productivity of different fertilization treatments A total of 17 indicators, a comprehensive analysis of variance analysis and principal component analysis methods to evaluate the fertility of different fertilization factors and productivity levels, and fertilizer effects of different fertilization treatments were evaluated. The results showed that compared with sandy soil control, the effect of different fertilizers on soil fertility was significantly different (P <0.05), total biomass of energy grass increased by 246.3% ~ 566.4%, soil bulk density decreased by 4.4% ~ 9.5% Soil available potassium, available phosphorus and ammonia nitrogen increased by 282.4.4% ~ 424.7%, 157.2% ~ 296.2% and 70.3% ~ 288.0%, respectively. Comprehensive score by principal component analysis showed that the application of geological fertilizers treatment scores were significantly higher than the application of manure and no fertilization treatment control, while the application of microbial agents treatment points higher than the treatment without the application of microbial agents. The application of 30% coal-based solid waste fertilizers, along with the application of microbial agents, can maximize the physical and chemical properties of sand, significantly improve the fertility of sand.