Special compound fertilizer for pear trees and preparation method thereof

Abstract

The invention discloses a special compound fertilizer for pear trees and a preparation method thereof. The special compound fertilizer for the pear trees comprises the following materials in percentage by weight: 15-30% of sugar residue, 0.2-2% of borax, 0.5-2% of ferrous sulfate, 0.5-2% of zinc sulfate, 12-25% of urea, 15-25% of monoammonium phosphate, 20-30% of potassium chloride, 2-7% of ammonium sulfate, 1-7.5% of biochar and 3-5% of Chinese medicinal materials. The special compound fertilizer for the pear trees is prepared by grinding the above materials, uniformly mixing and granulating. The special compound fertilizer for the pear trees has both quick-acting characteristic like an inorganic fertilizer and long-acting and slow-release characteristics like an organic fertilizer and has the effects of reducing soil bulk density, expelling insects, killing bacteria, enhancing yield and quality of fruits, improving the soil in an orchard and protecting the environment and has a broad application prospects in production of green fruits.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a special compound fertilizer for pear trees and a preparation method thereof. Background technique [0002] Compound fertilizer refers to the fertilizer made of organic materials such as livestock and poultry manure, animal and plant residues, etc., which are fermented and decomposed, and then added with inorganic fertilizers. Organic fertilizers have slow fertilizer effects and have the effect of improving soil, but they cannot meet the nutrient needs of high-yield crops. Inorganic fertilizers have fast fertilizer effects, but if they are not applied properly, they will cause problems such as soil acidification, compaction and decline in organic matter content. Organic-inorganic compound fertilizers not only have the advantages of fast fertilizer efficiency of inorganic fertilizers, but also have the advantages of improving soil with organic fertilizers. [0003] Pear tree...

AI Technical Summary

Problems solved by technology

[0003] Pear trees need to use chemical fertilizers during the planting process. However, the extensive use of chemical fertilizers has artificially changed the evolution process of the soil, so that in the existing agricultural production process, the natural weathered minerals cannot meet the needs of the rapid growth of pear trees, resulting in nutrient deficiency. Human assistance is required

Extensive application of chemical fertilizers, land use without cultivation, resulting in a decline in soil organic matter, chemical fertilizers cannot compensate for the lack of organic matter, further affecting the survival of soil microorganisms, not only destroying the structure of soil fertility, but also reducing fertilizer efficiency

Third, harmful substances pollute the soil

Fourth, the quality of crops has declined, and nitrite has seriously exceeded the standard, which seriously affects human health and the harmony between man and nature.

At present, the nutritional elements of fertilizers for pear trees are not comprehensive, which leads to the ineffective absorption and utilization of fertilizers during the growth of pear trees, resulting in malnutrition in the later stage. In addition, it is also necessary to reasonably adjust the timing of fertilization during the fertilization process, resulting in nutritional imbalance and fertilizer Low absorption and utilization rate, resulting in low yield of pear trees

At the same time, during the growth of pear trees, they are extremely vulnerable to diseases and insect pests. In order to reduce or eliminate the impact of diseases and insect pests on crops, various pesticides are used during the planting and growth stages of crops, which will not only bring soil, water and air pollution, and pesticides will be absorbed by crops, resulting in pesticide residues in agricultural products, which seriously threaten human life and health