Method for preventing and controlling ginger blast

Abstract

The invention relates to a method for preventing and controlling ginger blast, and mainly solves the problems that the existing preventing and controlling technology pollutes and damages the soil structure. The method is characterized in that: I, adopting the biological bacteria of the following amount: (1) 500-900 g of primary bacillus subtilis per mu, (2) 10-30 g of pythium oligadrum per mu, and (3) 1000-2000 g of flora consisting of phosphorus-dissolving bacteria, potassium dissolving bacteria, actinomycetes, antibiotic bacteria, nitrobacteria, photosynthetic bacteria, aspergillus, streptomyces and live beneficial fungi; II, adding 500 kg of fermentation soybean cake or 4 square meters of fowl manure into (3) of I, and fermenting for 8-10 days; III, before planting ginger, mixing (1) and (2) of I proportionally, and irrigating the plot; IV, after planting ginger, mixing (1) and (2) of I proportionally, and irrigating the plot at an interval of 20 days; and V, when seeding ginger and topdressing, uniformly scattering the fertilizer made by II. The method provided by the invention is scientific and reasonable, effectively improves soil and has obvious effect of above 90% in preventing and controlling ginger blast; and moreover, the method has certain effect in preventing and controlling ginger rhizome rot, and reduces the cost by **** in comparison with the prior art.

Description

Technical field [0001] The invention relates to a method for preventing and treating ginger blast in agricultural ginger planting technology. Background technique [0002] Ginger blast is the rot disease of ginger, which is a bacterial disease. Mainly damage the stem base and tubers that meet the ground. The diseased part showed yellow-brown water-soaked shape at the initial stage, and the diseased part gradually expanded and turned dark brown, and the ginger tissue softened and rotted. When the tissue is squeezed by hand, it will be ulcerated and become a white viscous liquid with a foul smell. Only one layer of epidermis is left after browning and rot in severe cases, and the aboveground part (ginger seedlings) loses water and turns yellow, browns and dies. The following measures can be taken to prevent ginger blast: 1. Carry out 2-3 year crop rotation with other crops. In addition to avoiding continuous cropping, crop rotation with Solanaceae vegetables should also be ...

AI Technical Summary

Problems solved by technology

The above methods have a certain effect on the prevention and treatment of ginger blast, but they cannot be completely controlled, because if the ginger blast bacteria contained in the soil are lurking in the ginger, the medicine cannot invade, and the treatment is difficult to be effective. Therefore, the prevention of ginger blast is the main method. It is necessary to disinfect the soil. The main method is to use highly toxic drugs such as chloropicrin and methyl bromide to fumigate the soil, which kills the beneficial bacteria while killing the harmful bacteria, which makes the soil ecological balance unbalanced and loses the transformation of the beneficial bacteria to the soil and fertilizer. , affect plant growth and development; because beneficial bacteria cannot suppress harmful bacteria, harmful bacteria multiply, causing serious damage to soil structure in the later stage, crop growth is as follows, forming a vicious circle

The use of the above-mentioned drugs has also seriously polluted groundwater and air, causing serious harm.