Comprehensive Prevention and Control of Salty Barriers in Fruit Trees in Greenhouse
Manual Pen,Tattoo Makeup Pen,Comestic Tool Kiay Trade Cosmetology Co., Ltd. , http://www.chinatattoomachines.com
The increase in concentration of soil solution caused by salt accumulation is a prominent problem that prevails under the cultivation conditions of fruit trees (such as peaches, nectarines, grapes, strawberries, etc.) in protected areas (greenhouses or greenhouses), so that the absorption of nutrients and moisture by fruit trees is out of balance. Therefore, a series of physiological obstacles are generated, which seriously affect the increase of fruit tree yield and fruit quality, and restrict the process of industrialization of fruit trees. They must be carefully controlled. First, scientific fertilization. In the protected area, we should pay more attention to applying adequately decomposed organic fertilizer, fertilize the soil, improve the physical and chemical properties of the soil, increase the replacement capacity of the soil base, and increase the buffer capacity of the soil. When using chemical fertilizers, attention should be paid to the type, quantity, quality and fertilization method of fertilizers, and apply fertilizers such as superphosphate, calcium phosphate, and potassium phosphate that are not easily soluble in water and are easily adsorbed by the soil. Second, leaching irrigation. During the rainy season, the shed film is uncovered, allowing rainwater to leach into the soil or rinse with water. Low-lying land, with heavy soil and poorly drained land, dug ditches in the vicinity to increase drainage, and use water to carry salts away. During the growth of the fruit trees, the number of irrigations and the amount of irrigation water are appropriately increased, and the remaining salt is removed by water without increasing the humidity in the protected area. Third, deep salt removal. Fruit trees that have been planted for many years are plucked deeper after the fruit is harvested. Grapes, strawberries, etc. that were planted once a year are deep-rooted before the re-colonization, so that the topsoil and the deep soil are thoroughly mixed and the topsoil is reduced. Salt. Fourth, between the lines covered. Membrane cover between fruit trees to improve soil temperature, improve soil physical properties, is conducive to soil microbial activity, speed up the decomposition and transformation of soil nutrients, improve fruit tree root absorption function, reduce the accumulation of salt. Fifth, biological salt removal. In the rainy season in summer, planting grasses growing fast in the rows of fruit trees and absorbing fertilizers such as Sudan grass can absorb a large amount of nitrogen from the soil and remove some of the salt. Six, cultivating loose soil. By cultivating loose soil and cutting off the soil capillary, it is possible to suppress excessive salt accumulation in the soil and accumulate on the surface with water. Seven, change the soil. Soil change is performed by changing soil.