Special-purpose fertilizer for large cherries as well as preparation method and application thereof

Abstract

The invention discloses a special-purpose fertilizer for large cherries. The special-purpose fertilizer for large cherries consists of the following components in parts by weight: 30-80 parts of urea, 2-10 parts of monopotassium phosphate, 30-80 parts of potassium sulfate, 1-5 parts of borax, 2-8 parts of ferrous sulfate, 1-5 parts of pure zinc fertilizer, 2-8 parts of ammonium molybdate, 2-10 parts of calcium carbonate and 2-5 parts of resin film-enveloping agent. The special-purpose fertilizer disclosed by the invention obtains a controlled release function by adding the resin film-enveloping agent, so that various elements of the fertilizer are slowly released at each stage to provide growth nutrient elements for large cherries. The invention further provides a preparation method of the fertilizer. The method is simple and easy to implement, and suitable for large-scale implementation. An application method of the special-purpose fertilizer disclosed by the invention comprises a step of spraying the fertilizer to different parts at proper stages in a period development process of large cherries, so that a fruit setting rate and weight of single fruit of Longguan and Longbao are respectively 48.2% and 23.3%.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a special fertilizer for big cherry and its preparation method and application. [0002] Background technique [0003] Big cherry, also known as Western cherry, was introduced to Yantai, Shandong Province by Western missionaries and expatriates in the 1870s. It is a general term for European sweet cherry, European sour cherry and their hybrids, because the fruit is larger than the original Chinese cherry. name. Because sour cherries and hybrid cherries are rarely cultivated in production, large cherries in the general sense refer to sweet cherries. Cherry fruit is rich in nutrients. It can also regulate the spleen, regulate qi and blood, calm the liver and remove heat. It is a health-care fruit that prolongs life. Experts call it "vitamin pills". Big cherry fruit is big and delicious, with an average single fruit weight of 12-14 grams, and the largest single fr...

AI Technical Summary

Problems solved by technology

[0004] At present, the fertilizers for large cherries generally do not have 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 process of cherries, resulting in malnutrition in the later stage. In addition, it is also necessary to adjust the timing of fertilization during the fertilization process. , leading to nutrient imbalance and low utilization rate of fertilizer absorption, leading to low yield of large cherries