Pseudoarthrobacter and application thereof, and biological organic fertilizer and application thereof
A bio-organic fertilizer and Arthrobacter technology, applied in the field of fertilizers, can solve the problems of reduced fertilizer efficiency, reproduction of harmful bacteria, and low utilization rate, and achieve the effect of increasing yield and significantly promoting growth
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[0027] In the present invention, the pseudoarthrobacter preferably adopts a pseudoarthrobacter fermentation liquid, and the preparation method of the pseudoarthrobacter fermentation liquid is preferably to inoculate the pseudoarthrobacter into a pseudoarthrobacter fermentation medium for cultivation to obtain a pseudoarthrobacter fermented liquid. The pseudoarthrobacter fermentation medium uses water as a solvent, preferably comprising: 12 g of starch, 4.8 g of yeast powder, 0.8 g of dipotassium hydrogen phosphate, 1 g of magnesium sulfate heptahydrate and 3 g of calcium carbonate per liter. The pH value of the fermentation medium is preferably 6.5-8.0, more preferably 6.7. The culture condition is preferably 20-35° C. for 28-40 hours of fermentation. The number of effective viable bacteria in the fermentation broth is preferably greater than 1 billion.
[0028] The bio-organic fertilizer of the present invention comprises 25-42.5 parts by mass of humic acid coal, preferably...
Embodiment 1
[0035] Preparation of Pseudoarthrobacter DG-22 liquid bacterial agent: get the purified bacterial strain DG-22 under aseptic conditions, use the inoculation loop to dip 3 rings and transfer to the Erlenmeyer flask with 250 milliliters of sterile liquid medium, Shake at a constant temperature (190 rpm) at 30°C for 4 days, and check the purity and quantity of the strains under a microscope before use. The effective number of viable bacteria in Pseudoarthrobacter DG-22 liquid bacterial agent is 1×10 9 cfu / ml.
[0036] The experiment was conducted in the greenhouse of the Gansu Academy of Agricultural Sciences, and was carried out through pot experiments, and the test pots used small plastic flower pots. Each pot contains 1.1Kg of substrate, and the substrate formula is soil:imported peat:vermiculite=1:0.1:0.1. Weigh 1.1kg of substrate before transplanting, and water 400ml per pot when starting to sow. Sow 30 Astragalus seeds in each pot, inoculate 30ml of DG-22 liquid inoculum...
Embodiment 2
[0042] After uniformly mixing 42.5g of humic acid coal and 42.5g of cow dung, continue mixing with 15g of pseudoarthrobacter, and ferment for 2 days to obtain bio-organic fertilizer. Among them, the preservation number of pseudoarthrobacter is CGMCC No.17858, and the effective number of viable bacteria of pseudoarthrobacter is 1×10 9 cfu / g, the effective number of viable bacteria in bio-organic fertilizer is 500 million cfu / g.
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