Cherry tree root cancer prevention

(1) Test materials: The oligochitosan citrate calli “Magic Formula 1” produced by Dalian Baoluobao Marine Life Sciences Research and Development Center Co., Ltd., and the seaweed extract plant immunopotentiation opsonization carboxymethyl chitosan The protective agent and other auxiliary drugs introduced by the company were disinfected and fled; Varieties: medium and late-maturing varieties; Base fertilizer: Fermented farmyard manure was added 1,000 times as "Magic Formula 1". (2) According to different control targets, the methods adopted are as follows: Period of prevention and treatment: Pre-implantation symptoms: No obvious symptoms, but the presence of Agrobacterium tumefaciens in the soil will be affected by root trauma and grafting during transplantation. Plants. Control methods: Before planting, use chito-oligosaccharide citrate 500 times and seaweed plant to increase production of opsonization 1000 times mixed liquor to soak seedlings for 6 hours. Period of prevention and cure: After the colonization, the disease manifestations: 1. The trunk showed that the secreted resin was grayish-brown after drying, and the epidermis was resembling a tumour-like tumor. The new leaf on the side of the disease was wilt and even withered; 2. The rhizome showed a fold-like pile. Base, shaped like mustard. Control methods: 1, trunk disease skin scraping method is: the first part of the disease with a knife scraped off, exposing the formation of the layer without injury, if the formation of the disease has been blackened, then how much part of the black, then scraped off much. In the upper part of the lesion, extend 1 to 2 cm to the healthy part, and extend 2 to 3 cm to the healthy part under the lesion. Its prevention and control methods are as follows: Formula: seaweed extract plant immune-promoting opsonization factor 1000 times + pyrimidactin 500 times (or pentachloronitrobenzene) + chitooligosaccharide citrate callus 500 times mixed solution, carboxymethyl shell The glycan protective agent is 50 times and it is brushed onto the lesion in turn. 2, on the basis of mustard tumor treatment: should first spread the topsoil of the tree disk, exposing the roots, the tumor-like disease was removed with a knife, and then use seaweed extract plant immune production of opsonization 1000 times + pyrimidide 500 times ( Or pentyl chloride) + chitooligosaccharide citrate 500 times liquid mixture brushing, slightly controlled dried chitosan citrate 500 times: carboxymethyl chitosan protection agent 50 Double brush. Control 3 to 5 days later, according to seaweed plant immune production of opsonization 1000 times + chitosan citrate callus 1000 times the concentration of water once the water seepage and then sealed soil recovery. The scraped root cancer lesions were burned cleanly. 3, fruit before harvest into the autumn or early spring fertilization, adding the total amount of fertilizer at the end of 1/3 to 1/4 of active biological bacteria fertilizer, the farm fertilizer must be fully fermented, the chitosan citrate callus 1000 times The liquid is sprayed on the fermented basal fertilizer to improve the rhizosphere soil environment. (3) Pilot plant site: Ganjingzi District, Dalian, Ganshuzi Boutique Park, Jinzhou National Agricultural Science and Technology Park (4) Demonstration scale: 100 hectares

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