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Soilless culture nutrient substrate containing blast-furnace slag and preparation method of nutrient substrate

A technology of blast furnace slag and soilless cultivation, which is applied in the direction of soilless cultivation, culture medium, planting substrate, etc., to achieve the effect of cost saving, production cost reduction and usage reduction

Inactive Publication Date: 2017-08-04
青海顺泰农牧开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Blast furnace slag is used as waste during iron and steel smelting, and blast furnace slag has not been used as a soilless cultivation nutrient substrate in the prior art

Method used

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  • Soilless culture nutrient substrate containing blast-furnace slag and preparation method of nutrient substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A nutrient matrix for blast furnace slag soilless cultivation, the nutrient matrix is ​​composed of the following components by weight percentage: 95% of blast furnace slag and 5% of chicken manure.

[0042] A method for preparing a nutrient matrix for blast furnace slag soilless cultivation comprises:

[0043] (1) Blast furnace slag is washed with water;

[0044] (2) pH measurement of blast furnace slag after washing;

[0045] (3) carry out peracid treatment 3 times to blast furnace slag with pH5 phosphoric acid aqueous solution;

[0046] (4) after the peracid treatment, the blast furnace slag is subjected to secondary measurement of pH to be 7;

[0047] (5) washing the blast furnace slag with water, and drying the washed blast furnace slag for dehydration;

[0048] (6) Fully mix 95% of blast furnace slag and 5% of chicken feces according to the weight percentage, and stir evenly to prepare a nutrient matrix for blast furnace slag soilless cultivation.

[0049] The p...

Embodiment 2

[0052] A nutrient matrix for blast furnace slag soilless cultivation, the nutrient matrix is ​​composed of the following components by weight percentage: 98% of blast furnace slag and 2% of chicken manure.

[0053] A method for preparing a nutrient matrix for blast furnace slag soilless cultivation comprises:

[0054] (1) Blast furnace slag is washed with water;

[0055] (2) pH measurement of blast furnace slag after washing;

[0056] (3) carry out peracid treatment 6 times to blast furnace slag with pH5 phosphoric acid aqueous solution;

[0057] (4) after the peracid treatment, the blast furnace slag is subjected to secondary measurement of pH to be 7;

[0058] (5) washing the blast furnace slag with water, and drying the washed blast furnace slag for dehydration;

[0059] (6) Fully mix 98% of blast furnace slag and 2% of chicken feces according to weight percentage, and stir evenly to prepare a nutrient matrix for blast furnace slag soilless cultivation.

[0060] The par...

Embodiment 3

[0063] A nutrient matrix for blast furnace slag soilless cultivation, the nutrient matrix is ​​composed of the following components by weight percentage: 99.5% of blast furnace slag and 0.5% of chicken manure.

[0064] A method for preparing a nutrient matrix for blast furnace slag soilless cultivation comprises:

[0065] (1) Blast furnace slag is washed with water;

[0066] (2) pH measurement of blast furnace slag after washing;

[0067] (3) carry out peracid treatment 8 times to blast furnace slag with pH5 phosphoric acid aqueous solution;

[0068] (4) after the peracid treatment, the secondary measurement of the pH of the blast furnace slag is 6.5;

[0069] (5) washing the blast furnace slag with water, and drying the washed blast furnace slag for dehydration;

[0070] (6) Fully mix 99.5% of blast furnace slag and 0.5% of chicken feces according to weight percentage, and stir evenly to prepare a nutrient matrix for blast furnace slag soilless cultivation.

[0071] The p...

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Abstract

The invention relates to the technical field of soilless culture, in particular to a soilless culture nutrient substrate containing blast-furnace slag and a preparation method of the nutrient substrate. The soilless culture nutrient substrate containing the blast-furnace slag comprises the following components of, by weight, 95-99.5% of blast-furnace slag and 0.5-5% of animal waste. The soilless culture nutrient substrate containing the blast-furnace slag has the advantages that the production method of the substrate is simple; the cost is low and the discarded blast-furnace slag can be recycled; the substrate has a long lifetime; the blast-furnace slag is treated with a phosphoric acid water solution with the pH of 5-5.5, wherein phosphoric acid is the main raw material for producing phosphatic fertilizers, and phosphoric acid reacts with the blast-furnace slag to produce phosphate minerals and trace elements which are needed for plant growing.

Description

technical field [0001] The invention relates to the field of soilless cultivation, in particular to a nutrient matrix for blast furnace slag soilless cultivation and a preparation method thereof. Background technique [0002] Soilless cultivation refers to the method of cultivating crops with nutrient solution or solid substrate plus nutrient solution without natural soil. The solid substrate and nutrient solution are called soilless cultivation nutrient substrate. Due to the high hydraulicity in most areas of northern China, substrate cultivation is generally adopted. In the prior art, substrates are mostly peat, sand, vermiculite, perlite, rock wool and organic waste from crops. [0003] Blast furnace slag is the product discharged from the blast furnace after melting non-ferrous components in iron ore, coke, and ash in PCI coal when iron and steel enterprises smelt pig iron. Mostly crystalline massive, honeycomb or rod-like, vitreous-based fine particles, light yellow (a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00C05G1/00
CPCA01G24/00C05D9/00C05F3/00C05F9/04C05F11/00C05F17/00Y02P60/21
Inventor 李育静冯玉珠刘博胡小朋祖连全
Owner 青海顺泰农牧开发有限公司