6results about How to "Improve community structure" patented technology

This invention discloses an organic fertilizer for increasing guava yield in saline-alkali land and its preparation method, relating to the field of biotechnology. The active ingredients of this organic fertilizer include *Bacillus horikoshii* ACCC 01061, *Bacillus safensis* CICC 21743, *Sporidiobolus salmonicolor* CICC 32895, *Trichoderma koningii* CICC 13006, and *Trichoderma longibrachiatum* ACCC 32095. This organic fertilizer can improve the yield per guava tree and the quality of the fruit grown in saline-alkali land, and has significant market application value.

The invention discloses a composite microbial agent containing pseudomonas and application thereof, and belongs to the technical field of agricultural microorganisms. The composite microbial agent disclosed by the invention comprises pseudomonas synthetic flora and N-acetyl-L-tryptophan, wherein the N-acetyl-L-tryptophan can be used for effectively inhibiting the growth of pathogenic bacteria and effectively improving the colonization capability of pseudomonas in soil; the pseudomonas and the N-acetyl-L-tryptophan are combined for use, so that the relative abundance of beneficial bacteria in continuous cropping soil can be improved, and the relative abundance of harmful bacteria can be reduced; the positive correlation proportion of continuous cropping soil microorganism interaction is increased; the apple rhizosphere microenvironment is remodeled, and the growth of apple seedlings in the continuous cropping soil is promoted, so that the prevention and treatment effect on the apple continuous cropping obstacles is remarkably improved.

The utility model discloses a kind of harmful microbial communities in sludge regulating device, belong to bottom mud processing technical field, its technical scheme main point is, including ship and placing in ground air solution complex oxygen system, the ship is provided with lifter, the lifter is connected with adjusting part, the adjusting part includes enclosed cover, the top of enclosed cover is provided with driving motor, driving motor's output shaft is installed with rotating rod, the end of rotating rod is provided with pawl, rotating rod is provided with threaded section, threaded section is spin-connected with moving disc, moving disc separates the enclosed cover inside into placement area and stirring area, the radius of stirring area is greater than the radius of placement area, water purifying agent is placed in the placement area, enclosed cover is provided with slide bar, the moving disc is slidably connected with the slide bar. This kind of scheme closed fixed point processing and optimize the community structure of microorganism in bottom mud, secondary pollution does not appear, effectively promote water quality.

The invention discloses a fermented feed for promoting ruminants to efficiently utilize soluble proteins as well as a preparation method and application of the fermented feed, and belongs to the technical field of animal feeds. The fermented feed is prepared by fermenting a substrate consisting of cottonseed meal, corn flour and bran with a compound bacteria solution, and the substrate comprises the following components in percentage by mass: 5-31% of cottonseed meal, 2-31% of corn flour and 38-93% of bran; the mass of the composite bacterial liquid is 8-10% of that of the substrate, and the composite bacterial liquid is prepared by compounding a candida tropicalis bacterial liquid and an enterococcus faecalis bacterial liquid according to a volume ratio of 1: 1, wherein the concentrations of the candida tropicalis bacterial liquid and the enterococcus faecalis bacterial liquid are both 108 CFU / mL. The preparation method comprises the following steps: crushing and sieving the substrate, mixing, adjusting the water content to 40%, spraying the compound bacteria liquid, uniformly mixing, and fermenting at a constant temperature of 30 DEG C. According to the invention, the substrate ratio and the fermentation process are optimized, the utilization efficiency of soluble protein by ruminants is improved, the rumen fermentation environment is improved, meanwhile, the nitrogen emission is reduced, and economic benefits and environmental protection values are achieved in animal production.

The invention discloses a phosphorus-solubilizing fungus soil remediation agent as well as a preparation method and application thereof, and belongs to the technical field of soil remediation. The phosphorus-solubilizing fungus soil remediation agent comprises micro-nano bone black and a penicillium deserticola solid fungicide. The preparation method comprises the following steps: pyrolyzing pig bones, and grinding to obtain the micro-nano bone black; the method comprises the following steps: coating a solid culture medium with penicillium deserticola for culturing to obtain a solid plate, washing the solid plate after spores are mature to obtain a spore liquid, mixing a solid carrier with sterile water, then adding a solid fungicide protective agent, and finally adding the spore liquid to obtain the penicillium deserticola solid fungicide. The phosphorus-solubilizing fungus soil remediation agent provided by the invention not only can effectively promote dissolution of insoluble phosphate, but also can fix heavy metal cadmium (Cd) in soil, has a very good application value for farmland Cd pollution remediation and environmental protection, is green and environment-friendly, can comprehensively improve soil fertility, and creates a good nutritional condition for crop growth.

This invention discloses a compound microbial agent containing Pseudomonas and its application, belonging to the field of agricultural microbiology technology. The compound microbial agent of this invention includes a Pseudomonas synthetic flora and N-acetyl-L-tryptophan. N-acetyl-L-tryptophan can effectively inhibit the growth of pathogens and effectively improve the colonization ability of Pseudomonas in the soil. The combined use of Pseudomonas and N-acetyl-L-tryptophan can increase the relative abundance of beneficial bacteria and decrease the relative abundance of harmful bacteria in continuously cropped soils; increase the positive correlation ratio of microbial interactions in continuously cropped soils; reshape the rhizosphere microenvironment of apples; and promote the growth of apple seedlings in continuously cropped soils, thereby significantly improving the control effect on continuous cropping obstacles in apples.