5 results about "Microbicide" patented technology

A device for carrying out a method for controlling a content of microorganisms in a liquid includes a measuring unit, a control unit, a supply unit and a computing unit. The measuring unit measures the microorganism content. The control unit determines a dosage of a biocide on the basis of the measured microorganism content using a model with at least one parameter, in order to achieve a predefined microorganism content. The supply unit supplies the biocide to the liquid in the dosage determined by the control unit. The computing unit calculates the at least one parameter from a recording of the microorganism content measured by the measuring unit over at least one past time interval and the amount of biocide supplied in this time interval.

This invention belongs to the field of agricultural biotechnology and fertilizer preparation technology, and more specifically relates to a compound fertilizer for the prevention and control of soil-borne diseases in rice and its preparation method. The compound fertilizer for the prevention and control of soil-borne diseases in rice provided by this invention has a four-layer gradient structure, consisting of a core, a middle layer, an isolation transition layer, and an outer layer from the inside out. The core includes urea, potassium dihydrogen phosphate, potassium chloride, potassium silicate, and chitosan oligosaccharides; the middle layer is a drug-loaded biochar slow-release layer; the isolation transition layer is formed by cross-linking sodium alginate and phytic acid; and the outer layer is a microbial protective layer. Through the core-shell-membrane multi-layer gradient structure design, physical isolation and sequential release of each component are achieved. The isolation transition layer effectively blocks direct contact between chemical fungicides and beneficial microorganisms, solving the problem of fungicide-microorganism interaction; at the same time, this structure ensures the orderly release of nutrients, fungicides, and microorganisms, matching the growth and disease occurrence patterns of rice.

The present invention belongs to the technical field of biocides with agricultural applications. The invention provides a long-lasting biocidal formulation comprising a protective agent selected from chitosan and an active agent selected from electrolyzed water with characteristics of low to zero toxicity for both humans and crops, in addition to generating a microfilm that protects for at least fifteen days with a single application against phytopathogens.

The present application relates to a kind of arylamino-containing xanthine derivatives and its preparation method and application.On the basis of 1,3-disubstituted xanthine raw material, arylamino-containing xanthine derivatives obtained by series of reactions are shown as general formula I.Compounds of general formula I have higher herbicidal activity, and have obvious activity on rape, amaranthus retroflexus, barnyard grass, crabgrass, have good insecticidal activity, especially on the effect of diamondback moth is remarkable, have good fungicidal activity, and have obvious in vitro inhibitory activity on wheat scab fungus, pepper phytophthora blight fungus, sclerotinia sclerotiorum, cucumber fusarium wilt fungus, apple phialophora quercina, wheat sharp eyespot fungus, etc.Compounds of general formula I can be used as active components of herbicidal or insecticidal or fungicidal composition, for preparing agricultural herbicide or insecticide or fungicide, and can be used for the prevention and treatment of grass damage or insect damage or pathogenic damage on various crops.Also have good inhibitory effect on the activity of KARI, and can be used for KARI inhibitor.