A solution for accurately adjusting and supplementing acid in blueberry root zone and its application method

Abstract

The invention belongs to the technical field of orcharding and relates to a solution for accurate acid adjustment and supplementation in a root field of a blueberry and a use method of the solution for accurate acid adjustment and supplementation in the root field of the blueberry. The solution for accurate acid adjustment and supplementation is a sulfuric acid and sulfur powder mixed solution and composed of a sulfuric acid solution with the pH value being 3.8-5.0 and nanometer-scale sulfur powder. By the adoption of the prepared solution for accurate acid adjustment and supplementation, the sulfuric acid solution enables acid adjustment and supplementation to take effect quickly, the sulfur powder can supplement acid running off from soil under the action of thiobacilli, and therefore the acid adjustment and supplementation effect lasts for a long time; through a self-made solution applying device, the defects caused by an extensive acid adjustment method are overcome, and acid adjustment and supplementation can be conducted in the root field for different varieties of blueberries, waste is reduced, and overall acidification of a land is avoided; due to the design of a conical automatic watering device, acid supplementation can be conveniently conducted on the soil at any time, and the root systems of the blueberries are not damaged; operation is convenient, and no technical problem exists; and the solution for accurate acid adjustment and supplementation in the root field of the blueberry has important significance in improving the yield and quality of the blueberries, improving the precise level of management, promoting rapid development of the blueberry industry and improving the industrial distribution.

Description

technical field [0001] The invention belongs to the technical field of fruit tree cultivation, and in particular relates to a solution for accurately adjusting and replenishing acid in blueberry root zones and a method for using the solution. Background technique [0002] Blueberry is a small perennial shrub species of the Rhododendronaceae Vaccinium genus. The fruit is edible and rich in anthocyanins, and has important value in nutrition, health care and medicine. In recent years, with the increasing demand for blueberries in the consumer market, my country's blueberry planting industry has also developed rapidly, covering more than 20 provinces, municipalities and autonomous regions including Heilongjiang, Jilin, Liaoning, Shandong, Guizhou, Zhejiang, Jiangsu, and Sichuan. . [0003] Blueberries like acidic soil and are very demanding on soil acidity, so soil acid adjustment in blueberry planting is one of the key technologies. Blueberries are suitable for growing in acid...

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Problems solved by technology

[0005] In fact, the production practice has proved that the extensive method of acid adjustment has great limitations, which are manifested in: (1) The method of spreading and mixing sulfur powder all over the ground does not fully consider the blueberry roots with small width and shallow vertical distribution. Features, serious waste, high cost; (2) sulfur powder is easy to harden, mixed unevenly with the soil, easy to cause root burn of blueberries; (3) easy to lead to acidification of the whole land, affecting the replanting of other crop varieties in the future; (4) sulfur After the powder is applied to the soil, it takes 40-90 days to adjust the pH value, which cannot change the acidity of the soil in time, which affects the timely transplanting of blueberry seedlings; (5) the traditional method is to adjust the acid before planting, but with the sulfur powder With complete decomposition and loss of acid, the pH value of the soil will gradually increase, which will affect the normal growth and development of blueberries, so it is necessary to add acid to the soil in time

There is currently no effective way to add acid to the soil during blueberry growth without damaging the roots

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