Effect Of Application Of Organic-Inorganic Mixed Fertilizers On Physical And Chemical Properties And Yield Of Meadow Alkali Soil

Test set in the Zhaozhou care Ancient Township should Lam Tsuen Jiatun cattle manure as organic fertilizer materials, under the same conditions of the available nitrogen, according to the different proportion of the available nitrogen treatment, the test set7processing,5organic and inorganic fertilizer treatment, a ck, a farmers’ conventional fertilization. In this experiment, determination of soil physical properties, chemical properties, soil enzyme activity, corn yield, pH and conductivity of the spring back to the salt and summer leaching salt period, to evaluate the organic and inorganic fertilizers, improved effects and preliminary selection of appropriate organic inorganic fertilizer proportion.The experimental results show that:soil physical properties has been improved:the total available nitrogen under certain conditions, the use of cattle manure and inorganic fertilizer combined application of different proportions, can reduce soil bulk density, increased soil porosity, water stable aggregates (>0.25mm) content, saturated hydraulic conductivity and soil saturated water content and field capacity; while reducing the same volume of saline soil, soil salinity, formed conducive to inhibit the return of salt and promote the leaching of salt structure. Integrated climate factors of organic and inorganic manure ratio of2:3, the formation of good soil structure.Soil chemical properties improved:the total available nitrogen under certain conditions, the use of cattle manure and inorganic fertilizer combined application of the well to reduce the salt content of soil, basicity, pH, increased cation exchange capacity in different proportions, organic matter and reactive organic matter. Organic matter to improve soil chemical properties in the core, and therefore deal with to improve soil chemical properties, in line with the purpose of substantially improving soil with less organic fertilizer.Organic fertilizer in the process of improving the soil urease, organic manure and inorganic fertilizer ratio of2:3for the first time peak, but also better in line with the least amount of soil organic matter to improve soil urease.Organic and inorganic fertilizers to calm down the crop growing season salt pH dramatic changes:the effect of combined application of cattle manure, all processing of effective inhibition of salt accumulation in spring to eliminate the salt accumulation peak; poured salt in the summer period to calm down because the leaching of salt caused the pH increases, and to promote salt leaching, reducing the conductivity.Reasonable fertilizer ratio to promote crop production increased:not all organic and inorganic 7fertilizers can contribute to crop yield, high levels of organic fertilizers in the proportion of treatment (4:1,5:0) and low amount of organic fertilizer fertilizer ratio processing (1:4) compared with ck and FFP to reduce yields, and only handle2(2:3) to deal with (3:2) production higher than ck FFP to deal with the two best.In summary, analysis of organic and inorganic fertilizers used in conjunction with the ratio of2:3can improve soil properties, and increase output as the optimal treatment.