Macroelement water-soluble fertilizer and preparation process thereof

Abstract

The invention provides macroelement water-soluble fertilizer. The fertilizer is prepared from compound sodium nitrophenolate, potassium polyphosphate, urea, compound microelements, magnolol, tranexamic acid, macroelement sustained release capsules, ethylene glycol and water. The macroelement water-soluble fertilizer has the specific gravity of 1.29-1.34 g / cm<3>, fertilizer efficiency as long as 4-6 months, total nutrients larger than or equal to 55.8%, microelements larger than or equal to 0.8%, water insoluble matter smaller than or equal to 2.1% and heavy metals smaller than or equal to 32 mg / kg. The invention also provides a preparation process of the macroelement water-soluble fertilizer. The prepared macroelement water-soluble fertilizer is used for melon planting, the yield of melonsis 1997-2018 kg, and the growth rate is 29.19%-30.53%; the reducing sugar content is 16.98%-17.45% and the increase rate of the reducing sugar content is 38.95%-42.80%; the fertilizer can also improve soil and reduce disease rate, and the incidence of soft rot is reduced to 1.1%-1.6%.

Description

technical field [0001] The invention relates to a large-element water-soluble fertilizer and a preparation process thereof, belonging to the technical field of crop water-soluble fertilizers. Background technique [0002] Macronutrients, also known as macronutrients and macronutrients, refer to the essential nutrients that plants require for normal growth and development. Generally refers to the six elements of carbon, hydrogen, oxygen, nitrogen, phosphorus and potassium. Under normal growth conditions, the content of these elements accounts for more than 1% of the dry matter mass of the plant. [0003] The Chinese patent No. 201310557162.0 discloses a water-soluble fertilizer with a large number of elements and its preparation method, which includes the following components in mass proportions: 30-70 parts of urea, 10-30 parts of monoammonium phosphate, and 20-57.5 parts of potassium source , 0.5-1.5 parts of zinc sulfate, 0.05-0.25 parts of phosphoric acid, 0.5-1.5 parts...

AI Technical Summary

Problems solved by technology

[0005] (1) Nutrients are released rapidly and concentrated in the early stage, resulting in excess fertilizer efficiency in the early stage and lack of fertilizer effect in the later stage, which is contrary to the law of plant growth and is not conducive to plant growth;

[0006] (2) For the cultivation of melon crops, the production capacity is low, and the degree of increase in production and quality is limited;

[0007] (3) Has a certain destructive effect on the soil

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