Tree planting method at magnesite flour dust polluted area hillside fields and tree pit filler

A technology of dust pollution and magnesite, applied in the field of plant cultivation method, can solve the problems of low forest coverage, soil erosion, etc., and achieve the effects of protecting the ecological environment, improving land productivity, and promoting calcium and magnesium balance

Inactive Publication Date: 2009-02-18
SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of tree-planting method and tree pit filler suitable for magnesite dust polluted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0027] It is advisable to plant saplings in spring or early winter. At this time, the temperature is relatively low, the humidity is high, and the evaporation is weak, so the roots of the seedlings are not easy to dry up. Autumn planting should be planted when the sap stops flowing, the trees begin to shed their leaves, and the soil should end before the soil freezes. The specific implementation is as follows:

[0028] (1) Fill in the excavated tree pit with 5-15 centimeters of topsoil dug out when digging the tree pit, and fill in an appropriate amount of soil; (2) Apply enough filling material and base fertilizer. Apply 50-80 kg of organic filling materials, 5-10 kg of phosphogypsum, 0.5-1.0 kg of industrial sulfur, and 0.5-1.0 kg of slow-release urea or slow-release compound fertilizer into each pit. The filling material is evenly mixed with the excavated soil or foreign soil, with a thickness of 20-40 cm; the surface layer of the tree pit is subsoil or foreign soil, with...

Embodiment 1

[0032] The formula of tree pit filler 1 is by weight: 25 kilograms of decomposed chicken manure, 25 kilograms of corn stalks after crushing, phosphogypsum (by weight percentage, calcium sulfate 81%, silicon oxide 5%, phosphorus pentoxide 3.5% , pH value 1.8, and the balance is impurity) 5 kilograms, industrial sulfur (by weight percentage, containing 99.97% sulfur, ash 0.0097%, organic matter 0.02%, moisture balance) 1 kilogram, slow-release urea 0.5 kilogram (containing N 46.3%).

Embodiment 2-16

[0034] The difference from Example 1 is that the formula of the tree pit filler 2-16 is shown in Table 1, and the phosphogypsum and industrial sulfur used are the same as in Example 1. The organic materials are decomposed livestock and poultry manure, crushed crop straw, and the chemical fertilizer is slow-release urea or slow-release compound fertilizer.

[0035] Table 1

[0036] make up

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PUM

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Abstract

The invention relates to a plant cultivation method, in particular to a tree planting method and a tree pit filling for magnesite dust polluted area slope land, which solves the problems that the magnesite dust polluted area slope land is low in forest coverage rate and serious in water and soil loss phenomenon. The filling per pit comprises 50 to 80 portions of organic material, 5 to 10 portions of phosphogypsum, 0.5 to 1.0 portion of industrial sulphur and 0.5 to 1 portion of slow-release urea or slow-release compound fertilizer, and the weight of the filling accounts for 5 to 15 percent of the sum of tree pit soil and the filling. The method adopts scale-pit reverse-slope stepped soil preparation, wherein each planting pit is 40 to 60 cm long, 40 to 60 cm wide and 50 to 70 cm deep; and in-situ soil or foreign soil is utilized and mixed with the filling for planting trees in the slope land. In the invention, the tree pit filling is low in price and free from pollution, and the tree planting method is simple and easy to apply and has the effects of improving the survival rate and growth rate of tree seedlings, restoring soil and vegetation and reducing water and soil loss.

Description

technical field [0001] The invention relates to a plant cultivation method, in particular to a method for planting trees on a slope in a magnesite dust polluted area and a filling for a tree pit. Background technique [0002] my country is rich in magnesite resources. A large amount of dust (mainly composed of MgO) is produced during the calcination process of magnesite mining. After the dust settles to the ground, the soil is seriously polluted. According to reports, in the Pianling mining area of ​​Xiuyan County, Liaoning Province, it is shrouded in thick black smoke and dust from morning to night every day. On cloudy days, the visibility is less than 50 meters, forming a 5-kilometer-long pollution zone, and a large area of ​​forest. Dead, the soil covered in a thick layer of sooty ash. According to incomplete statistics, dust pollution caused by magnesite production in Liaoning Province has polluted 290 square kilometers of mountains. The situation in other magnesite ...

Claims

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Application Information

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IPC IPC(8): A01G23/04A01B79/00A01C21/00C05B5/00
CPCY02P60/20
Inventor 姜勇张玉革李培军
Owner SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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