A kind of special fertilizer for apple tree and its preparation method and application

Abstract

The invention discloses a special fertilizer for apple trees, which 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 non-oxidized phosphorus and potassium sulfate 10-30 parts, 4-15 parts of borax, 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, resin package 2-5 parts of film agent, 2-10 parts of curing agent, 100-200 parts of water. The special fertilizer for apple trees of the present invention is added through the resin coating agent so that the fertilizer can obtain a slow-release function, so that various elements of the fertilizer are slowly released in stages to supply the growth nutrient elements of apple trees. The present invention also provides a preparation method for the above-mentioned fertilizer , the method is simple and feasible, and is suitable for large-scale implementation. The present invention induces fruit setting by applying the above-mentioned fertilizer to increase the fruit setting rate of apple trees up to 89.69%.

Description

technical field [0001] The invention belongs to the technical field of agriculture, in particular to a special fertilizer for apple trees and a preparation method and application thereof. Background technique [0002] At present, the fertilizer of apple trees generally does not have a slow-release function. In addition, the nutrients of the fertilizer are not comprehensive, which leads to the ineffective absorption and utilization of the fertilizer during the growth process of the apple tree, which leads to malnutrition in the later stage. timing, resulting in nutrient imbalance and low utilization of fertilizer absorption, resulting in low apple tree yields. SUMMARY 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 to be solved by the present invention provides the preparation method of the above-mentioned fertilizer. ...

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