Water-soluble fertilizer containing medium elements and preparation technology of water-soluble fertilizer

Abstract

The invention provides water-soluble fertilizer containing medium elements. The water-soluble fertilizer is prepared from 12 parts of potassium polyphosphates, 35 parts of urea, 15 parts of compound amino acid, 1.5 parts of tranexamic acid, 35 parts of sustained-release capsules, 15 parts of ethanediol and 130 parts of water; according to the water-soluble fertilizer containing the medium elements, the proportion is 1.21-1.26 g / cm<3>, fertilizer efficiency is as long as 4-6 months, amino acid is higher than or equal to 120 g / L, and the content of microelements is higher than or equal to 0.8%.The invention further provides a preparation technology of the water-soluble fertilizer containing the medium elements. When the water-soluble fertilizer containing the medium elements is applied to tomato planting, content of harmful germs and bacteria in soil is reduced, and content of the harmful germs and bacteria in soil is 12-31 cfu / g; root growth can be promoted, and main root of tomatoes is as long as 6.7-8.5 cm; Vc content of tomato fruits can be increased, and the increase rate of the Vc content is 12.4%-16.8%.

Description

technical field [0001] The invention relates to a medium element water-soluble fertilizer and a preparation process thereof, belonging to the technical field of crop water-soluble fertilizers. Background technique [0002] The secondary elements refer to the nutrient elements that are required in the growth process of crops, which are inferior to nitrogen, phosphorus, and potassium but higher than trace elements. Medium elements generally account for 0.1-1% of the dry matter weight of crops, usually referring to the three elements of calcium, magnesium and sulfur. In the traditional classification of nutrient elements, calcium, magnesium, and sulfur are often classified as macronutrients, mainly because the absorption of these three elements by plants is also very high, sometimes exceeding macronutrients, especially phosphorus. Since the companion ions of soil and some fertilizers often contain a large amount of calcium, magnesium, and sulfur, people often ignore the import...

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Problems solved by technology

[0003] The Chinese patent with the patent publication number CN107417427A discloses a preparation method of a magnesium-based medium-weight element water-soluble fertilizer, which solves the problem that the medium-weight element water-soluble fertilizer in the prior art cannot supplement carbon energy and magnesium at the same time, and the water-soluble solid fertilizer Drip irrigation is easy to harden in the soil, and the product has poor stress resistance

[0006] (1) Nutrients are released rapidly and concentrated in the early stage, resulting in excess fertilizer efficiency in the early stage and lack of fertilizer efficiency in the later stage, which is contrary to the law of plant growth and cannot meet the needs of plant growth;

[0007] (2) It has a certain destructive effect on the soil and makes the soil dependent on fertilizers

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