高效稳定沼液营养液对冬小麦产量及土壤养分的影响

摘要

在大田栽培条件下,研究了冬小麦返青期施用稳定沼液营养液对冬小麦产量、品质以及土壤营养成分的影响.结果表明,与传统施用尿素相比,稳定沼液营养液可以明显促进冬小麦株高的增长和干物质的积累,并显著提高产量,增产可达23.3％;与施用原沼液相比,施加稳定沼液营养液对冬小麦增产可达10.3％.施用稳定沼液营养液与施用尿素及原沼液相比,冬小麦籽粒中粗纤维含量分别下降20.9％和1.4％,淀粉含量分别上升4.8％和4.0％.同时对土壤养分的测定结果表明,施加稳定沼液营养液可以显著增加土壤速效磷,速效钾和有机质的含量,增加幅度分别为49.1％,24.5％和18.7％.因此,稳定沼液营养液的使用可以更为有效的促进冬小麦产量的增加,同时改变土壤养分状况.%Under the field experiment conditions, the effect of the nutrition stabilized biogas slurry iertibzation on winter wheat quality, yield and soil nutrient were studied, and the results were analyzed and discussed. The results indicated that the effect of the nutritim stabilized biogas slurry fertilization was significant. Compared with treatment of urea and common biogas slurry, the yields by nutrition stabilized biogas slurry were increased 23.3% and 10.3% respectively. The treatment of stable nutrition biogas slurry also improved grain quality of winter wheat, compared with treatment of urea and common biogas slurry, starch contents were increased by 4. 8% and 4. 0% respectively, and crude fiber contents were decreased 20.9% and 1.4%. And the soil available nutrient contents were increased significantly. Therefore, the use of stable nutrition biogas slurry could enhance the yield and quality of winter wheat, and improve nutrient status.