Humic acid-containing water-soluble fertilizer, and preparation method and use method thereof

Abstract

The invention discloses a humic acid-containing water-soluble fertilizer, and a preparation method and a use method thereof. The humic acid-containing water-soluble fertilizer is prepared from 10 to 20 parts of mineral source potassium fulvate, 20 to 30 parts of urea, 15 to 20 parts of potassium pyrophosphate, 4 to 6 parts of potassium nitrate, 0.5 to 1 part of phosphoric acid, 0.2 to 0.4 part of polyglutamic acid, 0.2 to 0.4 part of a de-foaming agent, and the balance of water. The preparation method comprises the following steps: adding the mineral source potassium fulvate and water into a reaction kettle according to a ratio, stirring, sequentially adding the rest ingredients into the reaction kettle containing the mineral source potassium fulvate mother liquor, and stirring to obtain the humic acid-containing water-soluble fertilizer. The use method comprises drip irrigation, flushing application, root irrigation operation and foliage spraying operation on crops. The gamma-polyglutamic acid is added, so that the water absorption and moisture retention of soil can be effectively improved, and the fertilizer has a good stress resistance effect on drought extreme weather appearing in the south of recent years; and the fertilizer utilization rate is increased, nutrients are absorbed and stored, rapid decomposition and loss of fertilizer components are inhibited, the fertilizer consumption is directly reduced, and the release time of the fertilizer in soil is prolonged.

Description

Technical field [0001] The present invention belongs to the technical field of agricultural fertilizer, particularly relates to water-soluble fertilizer containing humic acid and its preparation and use. Background technique [0002] Containing humic acid fertilizer on the market in recent years, popular, promote crop growth, improve fertilizer use efficiency, improve soil aggregate structure, the role of the advantages of ease of soil pH and so on. Conventional water-soluble fertilizer containing humic acid, the following shortcomings are still, as to improve the utilization of fertilizer, the amount and frequency of the use are small, little effect, so that people on humic acid-containing water-soluble fertilizer love-hate; as fertilizer use, quick result is very good, but persistent poor. Inventive content [0003] The present invention is to solve the technical problem of providing a water-soluble fertilizer containing humic acid and its preparation and use, and good quick r...

AI Technical Summary

Problems solved by technology

The existing humic acid-containing water-soluble fertilizers still have the following shortcomings. For example, in improving the utilization rate of fertilizers, the effect is not obvious due to the small amount of use and the number of times of use, which makes ordinary people love and hate humic acid-containing water-soluble fertilizers; Used as a top dressing, the quick effect is very good, but the persistence is poor