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Water-soluble plant growth nutrient solution and preparation method

A plant growth and plant growth regulator technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of precipitation, affecting the use effect, pests and diseases, etc., and achieve the effect of promoting metabolism, enhancing cold resistance, and large dilution ratio

Active Publication Date: 2016-01-13
诺贝丰(陕西)农业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, chitosan oligosaccharide needs to be dissolved in acetic acid to prepare a special nutrient solution for leafy vegetables, which is only suitable for acid-loving leafy vegetables, and the trace chelating elements compatible with it will also have different degrees of precipitation due to the influence of acidity. , affecting the effect of using
In addition, the nutrient solution is used for alkaline soil vegetables, which will easily lead to the occurrence of diseases and insect pests.

Method used

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  • Water-soluble plant growth nutrient solution and preparation method

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Comparison scheme
Effect test

Embodiment 1

[0039] Water-soluble plant growth nutrient solution No. 1, its specific preparation method comprises:

[0040] (1) take by weighing chitosan 10kg, take by weighing 25kg sodium hydroxide and be dissolved in 75kg water, make sodium hydroxide solution, chitosan is added in the sodium hydroxide solution, alkalization 2 hours under normal temperature and pressure, Then add an aqueous solution made of 8.2kg trifluoroacetic acid dropwise into the reaction system, react overnight, then add 12mL of 30% hydrogen peroxide, react at 40°C for 3 hours, finally add concentrated nitric acid dropwise until the pH is close to neutral, and then dilute with water to 60g / L of solution A, stored for subsequent use;

[0041] (2) Weigh 114kg of urea, 114kg of potassium dihydrogen phosphate, 85kg of potassium nitrate, 5kg each of EDTA-Cu, EDTA-Fe, EDTA-Zn, EDTA-Mn, boric acid, 100g of ammonium molybdate, 500g of polyethylene glycol and amino acids Powder 100kg, and then add all of it evenly into 146...

Embodiment 2

[0045] Water-soluble plant growth nutrient solution No. 2, its specific preparation method comprises:

[0046] (1) take by weighing chitosan 8kg, take by weighing 25kg sodium hydroxide and be dissolved in 60kg water, make sodium hydroxide solution, chitosan is added in the sodium hydroxide solution, alkalization 2 hours under normal temperature and pressure, Then add an aqueous solution made of 6.4kg chloroacetic acid dropwise into the reaction system, react overnight, then add 10mL of 30% hydrogen peroxide, react at 40°C for 3 hours, finally add concentrated hydrochloric acid dropwise until the pH is close to neutral, and then dilute with water to 60g / Solution A of L is stored for future use;

[0047] (2) Weigh 38kg of urea, 38.5kg of potassium dihydrogen phosphate, 18kg of potassium nitrate, 0.2kg of sorbitol, 5kg of EDTA-Cu, EDTA-Fe, EDTA-Zn, EDTA-Mn, 30kg of humic acid, β-ring Add 0.05kg of dextrin and 0.2kg of sorbitol evenly to 135L of solution A, add water to 1000L, a...

Embodiment 3

[0051] Water-soluble plant growth nutrient solution No. 3, its specific preparation method comprises:

[0052] (1) take by weighing chitosan 9kg, take by weighing 30kg sodium hydroxide and be dissolved in 70kg water, make sodium hydroxide solution, chitosan is added in the sodium hydroxide solution, alkalization 2 hours under normal temperature and pressure, Then add the aqueous solution made of 9kg chloroacetic acid dropwise into the reaction system, react overnight, then add 13mL of 20% hydrogen peroxide, react at 40°C for 3 hours, finally add concentrated hydrochloric acid dropwise until the pH is close to neutral, then dilute with water to 60g / L The solution A is stored for future use;

[0053] (2) Weigh 114kg of urea, 114kg of potassium dihydrogen phosphate, 85kg of potassium nitrate, 100kg of EDTA-Ca, 88kg of boric acid, 100g of ammonium molybdate and 60kg of humic acid, and then all of them are evenly added to 146.7L of A solution, and finally Add 300g of NP-70, add wa...

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Abstract

The invention relates to a water-soluble plant growth nutrient solution and a preparation method. In the plant growth nutrient solution, the content of small molecular weight water-soluble chitosan accounts for 8-120g / L, the sum of the content of nitrogen, phosphorus and potassium is larger than or equal to 60g / L, the sum of the content of medium trace elements accounts for 3-30g / L, the content of organic matter accounts for 30-200g / L, the content of plant growth regulator accounts for 0.01-5g / L, and the content of spread penetrating agents is larger than or equal to 0.2g / L; the small molecular weight water-soluble chitosan is obtained through the preparation steps that chitosan is firstly subjected to alkalization of strong base, then subjected to carboxyl chemical modification, degraded through strong oxidant after carboxyl chemical modification and finally neutralized through acid. The water-soluble plant growth nutrient solution integrates the effects of nutritional complement, growth promotion, antibiosis, virus resistance, stress tolerance and the like and has multiple functions and effects of improving soil, preventing hardening, increasing ground temperature, resisting to disease, being tolerant to stress, resisting to continuous cropping, supplementing nutrition rapidly, raising the yield and improving fruit quality and the like.

Description

technical field [0001] The invention relates to a water-soluble plant growth nutrient solution and its preparation method, in particular to the preparation method of small molecular weight water-soluble chitosan, its addition method, and its compounding with various trace elements and synergists, belonging to agricultural fertilizers technology field. Background technique [0002] Fertilizer plays a significant role in increasing crop yield and is an indispensable and important means of production in modern agriculture. At present, there are a series of phenomena in fertilization, such as emphasizing chemical fertilizers and despising organic fertilizers, emphasizing nitrogen fertilizers and despising phosphorus and potassium fertilizers, ignoring medium and micro fertilizers, resulting in unbalanced fertilization, which leads to a series of problems such as soil acidification and compaction, and seriously affects the output and quality of agricultural products. Compared wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 宋涛胡兆平李新柱刘辉曹奇领高志山
Owner 诺贝丰(陕西)农业有限公司
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