38results about How to "Ecological security" patented technology

The invention relates to a controlled-release water-soluble fertilizer containing humic acid. The fertilizer comprises the raw materials by weight percent: 5-10% of humic acid, 15-20% of zinc sulfate, 20-25% of borax, 45-60% of magnesium sulfate, 0.2-2% of poly-aspartic acid, 0.5-2% of ethylenediamine tetraacetic acid disodium and 0.1-0.5% of caproic acid diethylamino alcohol ester. In the fertilizer, potassium humate is taken as a raw material, a little amount of poly-aspartic acid and ethylenediamine tetraacetic acid disodium are added into the raw material, so that three elements including Zn, B and Mg are complexed after being dissolved or in the dissolving process, and slowly released to the soil, and then absorbed by crops, thus the fertilizer nutrient is prevented from running off, and the absorption utilization rate of the nutrient substance can be improved; the product is convenient to use, and can be used as seed fertilizer or base fertilizer; the product can be instantly and completely dissolved, and is applied by flushing or spraying and drop irrigation; the controlled-release water-soluble fertilizer containing humic acid is the first choice for realizing efficient water-saving agriculture and integrating water and fertilizer. The controlled-release water-soluble fertilizer containing humic acid is especially suitable for supplementing trace elements such as Zn, B and Mg for commercial crops such as vegetables, seed production corns, oil crops, fruit trees and grapes which have high requirement for the fertilizer application level.

The invention relates to a method for enriching vibrio phage and biologically preventing host bacteria. Due to splitting specificity of the phage, the phage of the specific host strains in the specific environment and a certain state cannot be obtained easily. According to the facts that the vibrio strains and the phage of culture zones and sea areas coexist with the environment ecologically and evolutionally, a long-term culture pool of the host bacteria and the phage is built in a specific area, lytic phage of specific pathogenic bacteria hosts in the area can be continuously enriched and separated, the lytic phage can be placed in the area after augmentation, proliferation of pathogenic bacteria of a cultivation water body can be controlled in a short time, concentration of the pathogenic bacteria of the water body can be restrained in a long term, and the effect of ecological defense is achieved. The method utilizes the phage in the cultivation sea water body to prevent diseases caused by the pathogenic bacteria and has the advantages of being efficient, ecological, safe, safe and lasting.

The invention discloses a rhizobium bacterium Rhizobium sp. WP 1‑3, and the preservation number is CGMCC No. 14472. In addition, the invention also discloses the application of the rhizobia in decomposing soil potassium and insoluble phosphorus in soil. The rhizobia of the present invention is a dominant bacterial strain screened out with potassium feldspar as a potassium source. During the process of growth and reproduction, the bacterial strain can convert the insoluble potassium element in the aluminosilicate in the soil into a soluble component. Decomposition of insoluble phosphorus to increase the source of phosphorus in the soil. In addition, the strain also has the function of nitrogen fixation, and provides nitrogen needed for plant growth and metabolism.

The invention discloses Pseudomonas fluorescens RQ3‑01, the preservation number of which is CGMCC No. 14471. In addition, the invention also discloses the application of the Pseudomonas fluorescens in degrading insoluble inorganic phosphorus. The Pseudomonas fluorescens of the present invention is a dominant bacterial strain screened out with insoluble inorganic phosphorus as a phosphorus source, and the bacterial strain converts insoluble inorganic phosphorus into bioavailable soluble phosphate during the growth and reproduction process; in addition, The Pseudomonas fluorescens of the invention also has the function of degrading organic phosphorus and potassium, can effectively increase the content of available phosphorus and available potassium in soil, and has the functions of promoting plant growth and increasing yield.

The invention discloses Eurotium cristatum XD-05, whose preservation number is CGMCC No.19024. In addition, the invention also discloses a method for isolating and purifying diketopiperazine dimer from Cystis coronaris. The S. coronoidis strain of the present invention is derived from Fuzhuan tea, and the strain is ecologically safe. For the first time, diketopiperazine dimer is isolated and purified from S. coronis derived from Fuzhuan tea. The separation and purification method is simple and efficient, and the separation The purified diketopiperazine dimer has a purity of over 98%.

The invention discloses a screening and domesticating method of microbial flora used for purifying water quality of gardens. The screening and domesticating method comprises the following steps: obtaining a bacterium source sample from sludge of water ponds of the gardens; preparing an enrichment culture medium according to nutritional requirements of efficient purification flora; adding the bacterium source sample into the enrichment culture medium and carrying out rapid enrichment culture to obtain a culture solution, so as to rapidly enrich a lot of flora, with high pertinence and high enrichment efficiency; utilizing a designed domesticating device and adding nutrient substances; carrying out domesticating treatment to obtain the microbial flora. The domesticating device has the advantages of simple structure, energy saving and high efficiency and high practicability; under a normal-temperature condition, the screened microbial flora can be domesticated through natural pressure difference, natural water temperatures and the like and a domesticating process is energy-saving and environmentally friendly; the method disclosed by the invention is economical, efficient, energy-saving and practical; after the screened microbial flora are domesticated, the microbial flora can be rapidly adapted to a water environment of the gardens; the efficient purification of sewage pond water of the water ponds of the gardens can be realized; the screening and domesticating method is ecologically safe, has no pollution and a high adaptive capacity, and is convenient for large-area application and popularization.