What are the fertilizer characteristics of dragon fruit?

According to the characteristics of root distribution, fertilizer should be applied in the root distribution layer of fruit trees to facilitate absorption and give full play to the maximum effect of fertilizer. The method of fertilization and the depth of application should be determined according to topography, topography, soil texture, fertilizer types, especially root distribution. Fertilizer should be applied in the soil layer with the most root distribution, and completely buried under the soil, so as not to be drenched in the sun and rain and lose the fertilizer effect. Soil fertilization is the main way of fertilization in orchards, and its methods are as follows: (1) Circular fertilization is also called wheel fertilization. It is to dig a circular ditch to fertilize a little farther away from the crown. This method has the advantages of simple operation and economical use of fertilizer. However, digging ditches is easy to cut off horizontal roots, and the range of fertilization is small, so it is generally used for fertilization of young trees. (2) the method of semi-ring fertilization is similar to that of ring fertilization, but the ring is interrupted into 3-4 pig trough ditches. Therefore, it is also called pig trough fertilization. The root injury of this method is less than that of circular fertilization, and the fertilization position can be expanded by changing the fertilization position every other time. Both flat land and sloping land can be applied, and it is a common method of fertilization in hilly orchards. Fertilizer ditches on sloping land should be dug above and on both sides of the trees. (3) the radial fertilization canopy starts about 1 meter from the trunk, taking the trunk as the center, digging 4-6 trenches radially outward. The ditch is generally 30 centimeters deep and fertilizer is applied. This method generally hurts the roots less than circular fertilization, but it should also avoid big roots when digging ditches. The position of radiation ditch can be changed every other year or every other time to expand the fertilizer application surface and promote root absorption. (4) when the whole orchard is fertilized with adult fruit trees or densely planted orchards, this method is often used when the root system has covered the whole orchard. Spread the fertilizer evenly in the garden and plough it into the soil to a depth of about 20 centimeters. The advantage is that the fertilization area of the whole garden is large, and the root system can absorb nutrients evenly. However, the shallow application often leads to the upturn of the root system and reduces the stress resistance of the root system. If this method is replaced with radiation ditch fertilization every other year, it can complement each other and give full play to the maximum effect of fertilizer. (5) Irrigation fertilization is the combination of fertilization and irrigation. In recent years, with the gradual popularization of drip irrigation technology in China, this method has been gradually applied. No matter the irrigation fertilization combined with sprinkler irrigation or drip irrigation, due to the timely supply of fertilizer and uniform distribution of fertilizer, it not only continuously damages the root system, but also protects the soil structure of the tillage layer, saves labor and has high fertilizer use efficiency. It can improve the output and quality, reduce the cost and improve the economic benefit. (6) extra-root topdressing is also called foliar spraying. This fertilization method has the advantages of fast absorption, obvious effect, saving fertilizer, and is not affected by the nutrient distribution center, can meet the urgent needs of fruit trees in time, and can avoid the chemical or biological fixation of some elements in the soil. Extra-root topdressing can especially supplement trace element fertilizer. However, extra-root topdressing can only be a useful supplement to soil fertilization, not a substitute for soil fertilization. The above fertilization methods have their own characteristics and should be rotated according to the actual situation and complement each other in order to maximize the effect of fertilization and avoid a single method. Dragon fruit is a special new fruit tree, its root system is different from other fruit trees, it has no main root, the root system is very shallow, basically distributed in the shallow soil, and has a strong aerial root. Therefore, special care should be taken not to damage the root system when applying fertilizer. Click to see more dragon fruit planting techniques