Tobacco special organic inorganic compound fertilizer evoking tobacco disease resistance and uses thereof

Abstract

An organic and inorganic compound fertilizer special for tobacco for inducing tobacco to resist diseases and the application thereof pertain to biological technical field. The weight proportion of each component of the compound fertilizer is that 21-28 percent organic matters, 7.7-9.4 percent full nitrogen, 4.3-7 percent P, 12-15 percent K and 47.6-48.2 percent for the rest. The preparation method is that: lignite is first heated under 200-300 DEG C to be dried; solid and liquid waste residues for producing penicillin in medicine industry and silkworm feces are mixed with dried lignite according to the weight proportion of lignite, silkworm feces and waste residues of 5-10 to 1-5 to 1; the mixture is then kept in a temperature of above 85 DEG C for at least 20 minutes; then ammonium nitrate phosphate fertilizer, potassium sulfate, monoammonium phosphate, calcium-magnesium phosphate, ferrous sulfate and the organic mixture are mixed according to the proportion of 24-28 : 24-30 : 5-10 : 4-6 : 0-0.5 : 25.7-43 to obtain compound fertilizer. The compound fertilizer is applied for inducing tobacco to express albumen related to the course of disease and thereby producing disease resistance of the system and providing nutrition requirements for growth of tobacco. The invention has the advantages of good effects and easy application and is applicable for the production of pollution-free tobacco.

Description

Technical field: [0001] The invention relates to a tobacco-specific organic-inorganic compound fertilizer for inducing tobacco disease resistance and an application thereof, belonging to the field of biotechnology. Background technique: [0002] For a long time, tobacco cultivation has been affected by many fungal diseases, viral diseases, bacterial diseases, and nematode diseases. Black shank disease caused by Phytophthora (Phytophthora parasiticus tobacco variant), red spot disease caused by Alternaria, and nematodes caused by root-knot nematodes Diseases are common. The control of tobacco diseases mainly depends on disease-resistant varieties and chemical pesticides. At present, there are no tobacco varieties that are immune or highly resistant to these diseases in production. However, due to safety concerns, the application of genetically modified tobacco has not been commercialized. Therefore, the use of chemical pesticides is still the most important measure for tobac...

AI Technical Summary

Problems solved by technology

[0005] In order to apply plant-induced disease resistance to agricultural production, international research and screening of effective disease-resistant inducers, especially chemical agents that can be commercially produced, has been found so far in the past 20 years. 2,6-dichloroisonicotinic acid ( INA), benzothiazole preparations (BTH) and aminobutyric acid (BABA) and other compounds can induce crop resistance to Verticillium wilt, Fusarium wilt and leaf spot, among which benzothiazole preparations (BTH) have begun Commercial production; but because the inducer is a chemical agent, it is harmful to most crops, so the development effect is average

Although this problem can be avoided by developing live microorganisms as inducers, the actual application effect is often affected by environmental conditions, and the preparation process of inducers is complicated, the cost is high, and the development is very difficult.