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Development method of special efficient fulvic acid liquid compound fertilizer for potatoes

A potato and compound fertilizer technology, applied in the agricultural field, can solve the problems of single nutrient of liquid fertilizer, unstable system and poor fertilizer efficiency, etc.

Inactive Publication Date: 2014-01-29
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the characteristics of single nutrient, unstable system, and poor fertilizer efficiency of current liquid fertilizers, and provide a method for preparing a special high-efficiency liquid compound fertilizer for potatoes rich in fulvic acid and various nutritional elements

Method used

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  • Development method of special efficient fulvic acid liquid compound fertilizer for potatoes
  • Development method of special efficient fulvic acid liquid compound fertilizer for potatoes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] [Example 1] Potatoes are rich in fulvic acid liquid fertilizer (magnesium, sulfur type)

[0039] (1) Add 18.63g of citric acid and 26.90g of fulvic acid to 260.00g of water in a water bath at 30-50°C. After dissolving, add 27.70g of magnesium sulfate heptahydrate for chelation reaction for 2 hours to form liquid A.

[0040] (2) Add 3.27g of triethanolamine and 1.60g of glycerol to the above solution, stir and dissolve for 30min.

[0041] (3) Dissolve 115.67g of urea, 108.95g of potassium dihydrogen phosphate and 24.88g of potassium sulfate successively with 392.50g of water in another reaction kettle under the condition of 30-50°C water bath to form liquid B.

[0042] (4) Pour liquid A into solution B and mix, add 20.00 g of ammonia water, adjust the pH to 5.0-6.0, and obtain 1000.00 g of liquid fertilizer product.

[0043] Dilute the above solution 600-800 times and apply it, mainly for germination, seedling and tuber growth.

Embodiment 2

[0044] [Example 2] Potatoes are rich in fulvic acid liquid fertilizer (calcium, magnesium type)

[0045] (1) In a water bath at 30-50°C, add 43.23g EDTA and 36.85g fulvic acid to 280.00g water and stir; after dissolving, add 31.10g calcium nitrate tetrahydrate and 39.35g magnesium nitrate hexahydrate in turn, and perform chelation reaction for 2 hours to form Liquid A.

[0046] (2) Add 2.05 g of triethanolamine and 4.10 g of sodium alginate to the above metal ion chelating solution, stir and dissolve for 30 min.

[0047] (3) In another reactor, dissolve 126.76 g of potassium nitrate and 126.76 g of urea with 284.80 g of water to form liquid B.

[0048] (4) Mix A and B solutions, add 24.80 g of ammonia water to adjust the pH to 5.0-6.0, and obtain 1000.00 g of liquid fertilizer product.

[0049] Dilute the above solution 600-800 times and apply it, mainly for the tuber formation period.

Embodiment 3

[0050] [Example 3] Potatoes are rich in fulvic acid liquid fertilizer (trace element type)

[0051] (1) Add 29.41g of citric acid, 20.76g of fulvic acid and 10.83g of triethanolamine to 120.40g of water in a water bath at 30-50°C, stir and dissolve for 30min to form A liquid.

[0052] (2) Add 3.94g of boric acid, 15.29g of zinc sulfate heptahydrate, and 4.22g of manganese sulfate monohydrate to the above solution in sequence, and react in a water bath at 30-50°C for 2 hours.

[0053] (3) In the second reaction kettle, dissolve 5.54 g of ascorbic acid and 17.30 g of ferrous sulfate heptahydrate with 60.00 g of water to form liquid B.

[0054] (4) In the third reaction kettle, add 59.20 g of water to dissolve 1.24 g of ammonium molybdate to form liquid C.

[0055] (5) Mix the three solutions A, B, and C.

[0056] (6) Dissolve 213.17g of urea and 94.15g of potassium nitrate in 326.00g of water in the No. 4 reaction kettle under the condition of 30-50°C water bath. This is D sol...

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Abstract

The invention provides a development method of a special efficient fulvic acid liquid compound fertilizer for potatoes. The special efficient fulvic acid liquid compound fertilizer comprises the following components in parts by weight: 1-10 parts of fulvic acid, 30-40 parts of major elements, 1-10 parts of secondary elements, 0.2-3 parts of trace elements, 2-12 parts of composite chelating agent, 1-2 parts of antioxidant, 0-1 part of surface active agent and 0-1 part of solution stabilizer. The development method mainly comprises the following production processes: extracting the fulvic acid by a hydrogen peroxide oxidation method, preparing fulvic acid-metal-chelating ions and preparing special liquid manure for the potatoes. According to the development method, the shortcomings of a few nutrient, unstable system and poor fertilizer effect of conventional liquid manure are overcome, and the special efficient liquid compound fertilizer for the potatoes, which is rich in fulvic acid, is provided for meeting the different nutrient requirements of the potatoes in different growth stages according to the unique botanic characteristics of the potatoes. The special efficient liquid compound fertilizer is simple in operation technology, scientific in formula, cost-saving and capable of effectively avoiding the waste of effective nutrients and substantially improving the yield and the quality of potatoes.

Description

【Technical field】 [0001] The invention belongs to the field of agricultural technology and aims at preparing a high-efficiency liquid compound fertilizer specially for potatoes, rich in fulvic acid and capable of providing different nutritional elements in different growth stages of potatoes, aiming at the unique botanical characteristics of potatoes. 【Background technique】 [0002] my country is a large agricultural country, and agriculture is the foundation of the national economy. In the process of agricultural development, food production has always been the center of agriculture. Potatoes not only have high nutritional value, but also have medicinal and health care value; moreover, potatoes have the characteristics of drought tolerance, cold resistance and wide adaptability, and the soil and climate conditions in most parts of the country can meet their production conditions. The fourth largest crop after wheat, rice, and corn. Therefore, the research on special fertil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C08H99/00C07G99/00
Inventor 刘玉萍沈红阁董轶望
Owner NANKAI UNIV
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