Special fertilizer for apple tree as well as preparation method and application thereof

Abstract

The invention discloses a special fertilizer for an apple tree. The special fertilizer comprises the following components in parts by weight: 50-80 parts of urea, 20-30 parts of starch, 15-30 parts of formaldehyde, 8-20 parts of phosphorus pentoxide, 10-30 parts of potassium sulphate, 4-15 parts of sodium borate, 5-10 parts of ferrous sulfate, 10-15 parts of zinc sulfate, 5-10 parts of ammonium molybdate, 2-10 parts of copper sulfate, 30-50 parts of calcium carbonate, 2-5 parts of resin coating agent, 2-10 parts of curing agent and 100-200 parts of water. By adopting the special fertilizer for the apple tree disclosed by the invention, the fertilizer can obtain the slow-release function by adding the resin coating agent, and the elements of the fertilizer are slowly released to supply growth nutrient elements at stages. The invention also provides a preparation method of the fertilizer. The method is simple and feasible, and applicable to large-scale implementation. The fruit setting rate of the apple tree can be up to 89.69% by fertilizing the fertilizer to induce fruit setting.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a special fertilizer for apple trees and its preparation method and application. Background technique [0002] At present, the fertilizers for apple trees generally do not have a slow-release function. In addition, the nutrients in the fertilizers are not comprehensive, which leads to the ineffective absorption and utilization of fertilizers during the growth of apple trees, resulting in malnutrition in the later stage. In addition, reasonable adjustments to the fertilization process are also required during the fertilization process. Timing, resulting in nutrient imbalances and low fertilizer uptake and utilization, resulting in low apple tree yields. Contents of the invention [0003] Purpose of the invention: the first technical problem to be solved by the present invention provides a special fertilizer for apple trees. [0004] The second technical problem ...

AI Technical Summary

Problems solved by technology

[0002] At present, the fertilizers for apple trees generally do not have a slow-release function. In addition, the nutrients in the fertilizers are not comprehensive, which leads to the ineffective absorption and utilization of fertilizers during the growth of apple trees, resulting in malnutrition in the later stage. In addition, reasonable adjustments to the fertilization process are also required during the fertilization process. Timing, resulting in nutrient imbalances and low fertilizer uptake and utilization, resulting in low apple tree yields