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Special sugar alcohol chelated potash fertilizer for big-leaf vegetables as well as preparation method and application of special sugar alcohol chelated potash fertilizer

A technology of sugar alcohol and chelation, applied in fertilization methods, applications, liquid fertilizers, etc., to improve soil structure, reduce leaf nitrate content, and avoid soil compaction

Pending Publication Date: 2021-11-02
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects in the prior art, the present invention provides a special sugar alcohol chelated potassium fertilizer for large-leaf vegetables, which solves the complex production process of traditional chemical fertilizers caused by the increase in vegetable production, large initial investment, and low utilization rate. lead to problems such as soil salinization

Method used

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  • Special sugar alcohol chelated potash fertilizer for big-leaf vegetables as well as preparation method and application of special sugar alcohol chelated potash fertilizer
  • Special sugar alcohol chelated potash fertilizer for big-leaf vegetables as well as preparation method and application of special sugar alcohol chelated potash fertilizer
  • Special sugar alcohol chelated potash fertilizer for big-leaf vegetables as well as preparation method and application of special sugar alcohol chelated potash fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] This embodiment relates to the preparation method of special sugar alcohol chelated potassium fertilizer for large-leaf vegetables. The raw materials used include by weight: 14 parts of deionized water, 15 parts of sugar alcohol, 71 parts of potassium fertilizer and 5 parts of chelating auxiliary agent, wherein sugar alcohol 15 parts include 3 parts of xylitol and 12 parts of sorbitol, 71 parts of potassium fertilizers include 40 parts of potassium formate and 31 parts of potassium acetate, 5 parts of chelating aids include 2 parts of glycerin and 3 parts of EDTA; the specific preparation steps are as follows:

[0016] (1) Weighing: First, weigh 14 parts of deionized water, 15 parts of sugar alcohol, 71 parts of potassium fertilizer, and 5 parts of chelating auxiliary agent according to the parts by weight, and set aside.

[0017] (2) Preparation of sugar alcohol mother liquor: Next, dissolve 15 parts of sugar alcohol weighed in 6 parts of deionized water, place it in a ...

Embodiment 2

[0024] The special sugar alcohol chelated potassium fertilizer for large-leaf vegetables involved in the present invention uses raw materials in parts by weight of 27 parts of deionized water, 18 parts of sugar alcohol, 55 parts of potassium fertilizer and 2.5 parts of chelating auxiliary agent. Among them, 18 parts of sugar alcohols include 8 parts of mannitol and 10 parts of sorbitol, 55 parts of potassium fertilizers include 2 parts of potassium chloride, 53 parts of potassium formate, 2.5 parts of chelating additives include 0.5 parts of glycerol, 1 part of Tween and water 1 part salicylic acid.

[0025] Its specific preparation steps are the same as in Example 1. It is controlled at about 7.5 by a pH regulator (ammonia and phosphoric acid), heated in a water bath, and the chelation temperature is controlled at 40°C. The stirring speed is 200 rpm, and the chelation reaction time 35min to prepare special sugar alcohol chelated potassium fertilizer.

[0026] This embodiment...

Embodiment 3

[0032] The amount of raw materials and the specific preparation steps of the special sugar alcohol chelated potassium fertilizer for large-leaf vegetables involved in this embodiment are exactly the same as those in Example 2, and the spraying concentrations of large-leaf lettuce are respectively 0.48g / L, 0.96g / L, and 1.92g. / L, 3.84g / L special sugar alcohol chelated potassium fertilizer growth contrast.

[0033] Table 3 is the comparison of special chelated potassium fertilizers on the aboveground fresh weight, nitrate content and soluble sugar content of big-leaf lettuce under different spraying concentrations. It is directly proportional to the soluble sugar content. When the spraying concentration is 0.96g / L, it reaches the highest level, the aboveground fresh weight is 196g, and the soluble sugar content is 1.33%. When the spraying concentration is 1.92g / L, the index content decreases. . At the same time, it was found that when the spraying concentration was 0.96g / L, the...

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Abstract

The invention belongs to the technical field of fertilizer production, and relates to a special sugar alcohol chelated potash fertilizer for big-leaf vegetables, which is prepared from the following raw materials in parts by weight: 14-64.5 parts of deionized water, 10.5-18 parts of sugar alcohol, 25-71 parts of potash fertilizer, 1.5-5 parts of chelating aid and a pH regulator. The product is suitable for the planting field of leaf vegetables such as Chinese cabbage, oilseed rape, big-leaf lettuce, lettuce, turnip and cabbage, and solves the problems of large fertilizer investment, low fertilizer utilization rate, poor vegetable taste, difficult improvement of economic benefits and the like caused by vegetable yield increase. The preparation process is simple, the cost is low, the potassium form is improved, the utilization efficiency of potassium can be effectively improved, the vegetable yield per unit area is increased, the vegetable quality is improved, the input amount of the fertilizer is reduced, the labor cost of farmers is reduced, the secondary salinization phenomenon of farmland is effectively improved, the green and healthy development of the big-leaf vegetable industry is realized, and the application prospect is very wide.

Description

Technical field: [0001] The invention belongs to the technical field of fertilizer production, and relates to a potassium chelated fertilizer with constant elements, in particular to a special sugar alcohol chelated potassium fertilizer for large-leaf vegetables and its preparation method and application. The special sugar alcohol chelated potassium fertilizer can make large-leaf vegetables reach The effect of increasing production and improving quality. Background technique: [0002] Vegetables are one of the essential foods in people's daily diet, which can provide various vitamins and minerals needed by the human body. According to statistics, 90% of the vitamin C needed by the human body comes from vegetables. Potassium is one of the three macronutrients needed for plant growth. Studies have found that applying potassium has a good positive effect on most vegetables, with an average yield increase of 10%-50%, while effectively promoting the synthesis of vitamin C in vege...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G5/20C05G3/50A01C21/00
Inventor 颜冬云谭慧婷李鹏超耿存珍牛军浩魏倩倩李腾升孙伟崔玉照
Owner QINGDAO UNIV
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