Disease-resistant bio-organic fertilizer for controlling soil-borne diseases

Soil-borne diseases are the main technical problems affecting the development of high-efficiency agriculture in China. The main obstacles in solar greenhouses and off-season cultivation and production, pesticide control effects are less than 30%. Where is the problem? According to the research, the main cause of soil-borne diseases is the pathogens hiding in the soil tillage layer. They are distributed in different locations in the soil. As long as the host plants appear, these dormant bacteria will germinate and affect the plant growth through the production of toxins. Attacking plant roots and entering plants causes plant morbidity or death. It is difficult to eliminate these germs in the soil by pesticide control. Although soil disinfection is a better method, it is difficult to achieve in actual production. The reason is that the soil surface is large and the amount is large. The cost of comprehensive soil disinfection is high, and the operation is difficult. It is almost impossible. The use of disease-resistant bio-organic fertilizer to control soil-borne diseases is the most cost-effective method to solve soil-borne diseases at home and abroad. one. How does the disease-resistant bio-organic fertilizer work best? Based on years of research experience, the following methods are proposed.

1. Start using the disease-resistant bio-organic fertilizer from the seedling stage to prevent and cure, and form the first line of defense against disease and disease. The specific method is: adding 1% to 2% of the disease-resistant bio-organic fertilizer developed by Nannong University in the nursery nutrient soil, or adsorbing a layer of disease-resistant bio-organic fertilizer on the surface of the seed of the water-absorbing seed as a seed dressing fertilizer, so that the anti-drug The pathogen forms a protective layer on the surface of the seed, thus establishing the first disease prevention and disease prevention line. According to the research results of Nannong University, it is better to use disease-resistant and strong seedlings in non-heavy soils or fields with very mild incidence of anterior iliac crest.

2. Establish a second line of defense for the bio-organic fertilizer in the field. The specific method is: use 25~50 kg of the disease-resistant bio-organic fertilizer developed by Nannong University per acre and mix it with healthy soil (appropriate amount), apply the hole or strip, and then directly colonize the disease-resistant and strong seedlings in the disease-bearing organism. In the mixed soil of organic fertilizer, the purpose of this is to enable the roots of the plants to pass through the bio-organic fertilizer containing the disease-resistant strains, not only to form a protective layer around the roots of the plants, but also to have a layer of content around the extended roots. Highly resistant strains, so that germs hiding in the soil have no way to attack the roots of plants.

The two methods described above for the use of disease-resistant bio-organic fertilizers are the supporting technologies for the research of the disease-resistant bio-organic fertilizer team of Nanjing Agricultural University in the long-term research on the prevention and control of soil-borne diseases. I hope to bring help to the farmers. Welcome to inquire. Experts direct guidance.

Source: agricultural Guide 2008 87 Author: Yang Xingming (Nanjing Agricultural University bio-organic fertilizer research team)

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