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Nutritive xanthohumic acid solution for soilless cultivation and its preparing process

A soilless culture and fulvic acid technology is applied in the directions of soilless culture, botanical equipment and methods, cultivation, etc., and can solve the problems of the limitation of large-scale promotion of soilless culture technology, vegetable nitrite poisoning, and high technical requirements, Achieve the effect of improving soil physical and chemical properties, promoting root development, and simple production process

Inactive Publication Date: 2002-11-27
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the composition of the currently used nutrient solution formula will change after being used for a period of time, which will cause damage to plants and cause vegetable nitrite poisoning, and it needs to be treated
One of the commonly used methods is to discharge the changed nutrient solution, but it is wasteful and pollutes the environment; the other is to recycle the nutrient solution after discharge, but the investment is large and the technical requirements are high, and it must rely on instruments and professionals
Therefore, the large-scale promotion of soilless cultivation technology in my country is limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] According to the production method of the fulvic acid intermediate in the Chinese patent ZL961088.6, in the reactor, 200g of lignite powder (containing 68.52% of humic acid and 2.51% of fulvic acid), 24g of caustic soda, and NaHSO 3 12g, add 1000g of water, heat to 95°C, and react for 3 hours under stirring. After the reactant settles for 24 hours, the supernatant is precipitated, which is the fulvic acid intermediate.

[0037] Take 50g of the above-mentioned fulvic acid intermediate, heat it to 50°C, add urea 11g, potassium dihydrogen phosphate 6g, ferrous sulfate 5g, borax 0.2g, manganese sulfate 0.1g, copper sulfate 0.02g, zinc sulfate 0.13g, molybdic acid Ammonium 0.006g, mix well, then add 50g water, react for 0.5 hour, cool, make organic fulvic acid nutrient solution for soilless culture. Its active ingredients (weight percent) are moisture 75.1, ash content 8.61, active fulvic acid 5.2, nutrient element content 11.09 (among them: nitrogen 5.0, phosphorus 3.0, pot...

Embodiment 2

[0039] Take 40g of the fulvic acid intermediate prepared in Example 1, heat to 40°C, add 25.0g of ammonium sulfate, 8.2g of ammonium dihydrogen phosphate, 7g of potassium sulfate, 1.6g of ferrous oxalate, 0.09g of boric acid, 0.062g of manganese sulfate, 0.01g of copper sulfate, 0.09g of zinc sulfate, and 0.004g of ammonium molybdate were mixed evenly, then 60g of water was added, reacted for 2 hours, and cooled to prepare an organic fulvic acid nutrient solution for soilless cultivation. Its active ingredients (weight percent) are moisture 67.6, ash content 14.64, active fulvic acid 4.2, nutrient element content 13.56 (among them: nitrogen 6.0, phosphorus 4.2, potassium 2.8, iron 0.5, manganese 0.02, copper 0.003, zinc 0.02, molybdenum 0.002 , boron 0.01).

Embodiment 3

[0041] Take 20 g of the fulvic acid intermediate prepared in Example 1, heat it to 80° C., add 11.38 g of ammonium bicarbonate, 8.5 g of potassium dihydrogen phosphate, 3.5 g of ferrous sulfate, 0.18 g of borax, 0.06 g of manganese sulfate, and 0.016 g of copper sulfate g, zinc sulfate 0.09g, ammonium molybdate 0.004g, mix evenly, then add 80g water, react for 1 hour, cool, and make organic fulvic acid nutrient solution for soilless cultivation. Its effective ingredients (weight percent) are moisture 79.5, ash 7.93, active fulvic acid 2.3, nutrient element content 10.27 (among them: nitrogen 2.0, phosphorus 4.5, potassium 3.0, iron 0.74, manganese 0.02, copper 0.004, zinc 0.02, molybdenum 0.002 , boron 0.02).

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PUM

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Abstract

A nutritive Xanthohumic acid solution for soilless cultivation its prepared from water (67-80 wt.%), ash (6-15), active xanthohumic acid (2-8) and nutritive elements through heating active xanthohumic acid to 40-80 deg.c, adding the precursors of N, P, K, Fe, Mn, Cu, Zn, Mo and B and water, reaction at 40-80 deg.C for 0.5-2 hr, and cooling to obtain the product. It can increase the resistance of plant to drought, cold and disease, and decrease the poisoning of nitrite or vegetables.

Description

Technical field: [0001] The invention belongs to a nutrient solution for soilless cultivation, and in particular relates to a preparation method of a fulvic acid organic nutrient solution. Background technique: [0002] Soilless cultivation technology is one of the main directions of research and development of protected agriculture in the world in the past century, and it is the most advanced cultivation technology and the most capital-intensive production method. Because nutrient solution irrigation is used instead of natural soil, it is also called nutrient solution cultivation. It uses various artificial weather to control the growth environment conditions of plants, resulting in a high production turnover rate, clean products, and pollution-free products. It also provides a feasible way for human food production technology. With the progress of society and the improvement of people's living standards, the voice of green food and pollution-free vegetables is getting hig...

Claims

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Application Information

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IPC IPC(8): A01G31/00C05F11/00C05G1/00
CPCY02P60/21
Inventor 武丽萍郎春梅高志贤胡靖文
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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