Zinc-enriched nutrient and preparation method thereof and method for cultivating zinc-rich broadbeaked mustard

Abstract

The invention discloses a zinc-enriched nutrient and a preparation method of the zinc-enriched nutrient and a method for cultivating zinc-rich broadbeaked mustard. The zinc-rich nutrient is prepared from the following components in parts by weight: 4-20 parts of zinc source, 4-20 parts of organic fertilizer, 1-5 parts of manganese sulfate and 0.1-0.5 part of cobaltous sulfate. The preparation method comprises the steps of crushing the cobaltous sulfate and the manganese sulfate separately; evenly mixing according to the mass ratio of 0.1-0.5:1-5; carrying out superfine grinding to obtain powder with particle size being less than 50mu m, wherein the nanometer-grade powder accounts for 3-25%; grinding zinc salt into powder, adding the powdered zinc salt into commercial organic fertilizer according to a mass ratio of 4-20:4-20, uniformly mixing for later use; and mixing the obtained products, granulating in a disk grain making machine to obtain granules with diameter being 2-3mm, wherein a proper amount of bonder is sprayed during disc granulating. The zinc-enriched nutrient is applied in a base fertilizer mode when a vegetable plot is prepared before broadbeaked mustard seedlings are transplanted, and the broadbeaked mustard produced by the method has high zinc content.

Description

technical field [0001] The invention relates to the technical fields of agricultural fertilizer and agronomy, in particular to a method for cultivating zinc-rich black cabbage. . Background technique [0002] Hei Tacai, commonly known as Takecai, Papacai, etc., is named for its growth on the collapsed ground. It is one of the main varieties of pakchoi planted in Rugao in winter and spring, and it is also a characteristic vegetable in Rugao that has obtained a geographical indication certification trademark. The leaves of Heitaicai are fat and tender, and can be fried, made into soup, cold salad, delicious and fresh in color, and rich in nutrition. Because every 100 grams of fresh leaves contain up to 70 mg of vitamin C, 180 mg of calcium, and minerals such as iron, phosphorus, magnesium, iodine, and zinc, they are called "vitamin" dishes and are favored by people. [0003] Zinc, element symbol Zn, is the fourth most common metal and one of the essential micronutrient eleme...

AI Technical Summary

Problems solved by technology

The previous schemes were limited to potted plants and failed to consider the results in the field; moreover, there were problems of low zinc content in cabbage or too low utilization rate of zinc fertilizer; in the above schemes, some experimental gradients were too high, which would cause pollution and damage to the soil , these factors lead to the failure of previous schemes to be promoted in the actual operation of vegetable zinc enrichment

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