The invention provides
Pseudomonas kirscheri WF3, a microbial
fertilizer for
saline-
alkali soil and a preparation method and application of the microbial
fertilizer, and belongs to the technical field of biological composting. The invention provides a preparation method of a microbial
fertilizer for
saline-
alkali soil. The preparation method comprises the following steps: (1) preparing a fertilizer carrier comprising a decomposed
organic fertilizer,
humic acid, attapulgite
powder and
polyglutamic acid; and (2) inoculating
pseudomonas kirschner WF3 into the fertilizer carrier, and carrying out sealed
fermentation to obtain the microbial fertilizer for
saline-
alkali soil.
Pseudomonas kirschner WF3 which has exopolysaccharide and
organic acid production capacity and can survive in a strong saline-alkaline environment is adopted for
fermentation of a fertilizer carrier, the prepared microbial
organic fertilizer can effectively improve the content of organic carbon,
total nitrogen and water-stable large aggregates (larger than 2.5 mm) in soil, increase the yield of corn, reduce the pH and total
salt content of the soil, and improve the yield of corn. The improvement effect on the saline-alkali soil is obvious.