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Method for planting pasture on rare earth tailings and comprehensive treatment method of rare earth tailings

A rare earth tailings and pasture technology, applied in the fields of resources and environment, can solve the problems of soil not being repaired, soil acidification, few repair measures, etc., to improve the survival rate and growth rate of plants, increase the content of organic matter, and increase the depth of fertilization. Effect

Active Publication Date: 2020-09-11
赣州市畜牧研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Rare earth is known as industrial "gold" and is an important strategic resource. However, due to the backwardness of rare earth mining technology in the past, there are a large number of rare earth tailings, and the organic matter in the soil of rare earth tailings is missing and the soil is acidified. Serious, so that the plants can not grow, and further lead to a large amount of tailings, serious soil erosion, and the method of directly planting specific plants in the prior art, there are slow growth of plants leading to death, and the soil has not been repaired
Therefore, the restoration of rare earth tailings is currently very difficult, and there are few effective restoration measures

Method used

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  • Method for planting pasture on rare earth tailings and comprehensive treatment method of rare earth tailings
  • Method for planting pasture on rare earth tailings and comprehensive treatment method of rare earth tailings
  • Method for planting pasture on rare earth tailings and comprehensive treatment method of rare earth tailings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Step 1. Collect cow dung. Collect cow dung from the cattle farm, control the drinking water and rainwater for beef cattle breeding not to enter the cow dung, and the cow urine enters the biogas digester for fermentation to obtain biogas slurry.

[0042] Step 2, preparing cow dung-based bed bait. Place the above-mentioned cow dung in a fermentation tank, add vermicompost and navel orange dregs to ferment for 4.5 days, the mass ratio of cow dung, vermicompost and navel orange dregs is 100:12.5:7.5, and ferment to obtain cow dung for cultivating earthworms Bed bait.

[0043] Step 3, preparing vermicompost. The above-mentioned cow dung-based bed bait is placed in strips on the ground with good drainage and shade to obtain a cultured base bed for cultivating earthworms. The length of the cultured base bed is controlled to be 4m, the width is 0.25m, and the height is 0.25m. Add 13.5kg of earthworms in the culture bed, water the culture bed every day, keep its humidity at a...

Embodiment 2

[0048] The differences between this embodiment and Implementation 1 are as follows:

[0049] In step 2, the mass ratio of cow dung, vermicompost and navel orange residue is 100:13.5:8.5, and fermented for 4 days to obtain cow dung-based bed bait.

[0050] In the step 3, the length of the earthworm breeding base bed is controlled to be 4.6m, the width is 0.28m, and the height is 0.26m, and 14.2kg of earthworms are added in the culture base bed, and the culture base bed is watered every day to keep its humidity at 53%. About 22 days for breeding;

[0051] In step 4, in the rare earth tailings area (115° 58' east diameter, 26° 39' north latitude, 1200-1250 meters above sea level), each horizontal field is ditched with a width of 32cm; others are the same as in the first embodiment.

[0052] In step 6, annual ryegrass is sown in the first year, with a sowing area of ​​0.64 kg per mu; in the second year, perennial ryegrass is interplanted, with a sowing area of ​​0.63 kg per mu; t...

Embodiment 3

[0054] The differences between this embodiment and Implementation 1 are as follows:

[0055] In step 2, the mass ratio of cow dung, vermicompost and navel orange residue is 100:15:10, and fermented for 3 days to obtain cow dung-based bed bait.

[0056] In the step 3, the length of the earthworm breeding base bed is controlled to be 5m, the width is 0.3m, and the height is 0.3m, and 15kg of earthworms are added in the culture base bed, and the culture base bed is watered every day to keep its humidity at about 53%. Breeding for 25 days;

[0057]In step 4, in the rare earth tailings area (116° 38' east diameter, 26° 29' north latitude, 1100-1120 meters above sea level), each horizontal field is ditched with a width of 35 cm; others are the same as in Embodiment 1.

[0058] In the first year in step 6, annual ryegrass is sown and planted, with a sown area of ​​0.7 kg per mu; in the second year, perennial ryegrass is interplanted with a sown area of ​​0.75 kg per mu; others are t...

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Abstract

The invention discloses a method for planting pasture on rare earth tailings and a comprehensive treatment method of the rare earth tailings. The method for planting pasture on rare earth tailings includes: using earthworm manure as a base fertilizer in the rare earth tailings area, planting Pennisetum hydridum and ryegrass, and the Pennisetum hydridum and the ryegrass can be alternately planted in multiple rows at intervals. The comprehensive treatment method of the rare earth tailings includes: establishing a cattle farm in the rare earth tailings area, and using Pennisetum hydridum and ryegrass to prepare feed to feed the cattle; cultivating earthworms with cattle dung to obtain earthworm manure, fermenting cow urine to obtain biogas slurry, and then planting and irrigating Pennisetum hydridum and ryegrass through earthworm manure and biogas slurry. According to the method, the rare earth tailings area can be fully utilized to breed cattle, and a problem of environment pollution caused by cattle farm dung can be solved; organic matter content of the soil of the rare earth tailings can be increased by fully utilizing cattle dung, acidity of the rare earth tailings can be neutralized by utilizing the characteristics of earthworm dung alkalinity, rich in various beneficial microorganisms, active ingredients, enzymes and various nutrient substances, survival rate and growth speed of plants can be improved, and a source problem of organic fertilizers in the treatment of the rare earth tailings can be solved.

Description

technical field [0001] The invention relates to the technical field of resources and environment, in particular to a method for planting grass in rare earth tailings and a comprehensive treatment method for rare earth tailings. Background technique [0002] Rare earth is known as industrial "gold" and is an important strategic resource. However, due to the backwardness of rare earth mining technology in the past, there are a large number of rare earth tailings, and the organic matter in the soil of rare earth tailings is missing and the soil is acidified. Seriously, so that the plants cannot grow, which further leads to a large amount of tailings and serious soil erosion. However, in the prior art, the method of directly planting specific plants has slow growth and death of the plants, and the soil has not been repaired. Therefore, the restoration of rare earth tailings is very difficult at present, and there are few effective restoration measures. [0003] Grass is a key f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/00
CPCA01G22/00
Inventor 雷小文陈荣强钟云平李建明邱静芸
Owner 赣州市畜牧研究所
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