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Afforestation method of Rendou low cut stem in karst area

A regional and karst technology, applied in the field of Rendou low-cut dry afforestation in karst areas, can solve the problems of low survival rate and damage, and achieve the effects of rapid growth, simple operation and improved afforestation efficiency.

Active Publication Date: 2016-04-13
GUANGXI FORESTRY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the Rendou seedlings used in large-scale afforestation in the society are all 1-year-old bare-root seedlings cultivated in the field. The root system of the seedlings is seriously damaged when they emerge from the nursery. In addition, the afforestation technology mastered by the masses is relatively extensive. Usually, the survival rate of afforestation is about 70%. low survival rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of method of afforestation in karst areas with low cut-off of beans, select flat terrain, good drainage and irrigation, and relatively fertile soil, carry out two plows and two harrows on the nursery land, harrow and harrow the fine soil, and apply 150kg calcium magnesium phosphate fertilizer per mu as Base manure, set up a bed with a width of 1m, a height of 20cm, and a width of 40cm; in spring, ditch the seedbed for sowing, with a distance of 30cm, and a seeding rate of 2kg per acre; 15,000 seedlings; and timely fertilization, the method of fertilization is once a month, 10kg of urea per mu is applied for the first time, sprinkled after rain or sprinkled with water, and compound fertilizer is applied for the second and subsequent times. Apply 30kg of compound fertilizer per acre every time, open a ditch and apply it, and cover the soil after fertilization. Select seedlings with a seedling height of 1.5m and a ground diameter of more than 0.8cm that are robust a...

Embodiment 2

[0029] A kind of method of afforestation in karst areas with low cut-off of beans, select flat terrain, good drainage and irrigation, and relatively fertile soil, carry out two plows and two harrows on the nursery land, harrow and harrow the fine soil, and apply 150kg calcium magnesium phosphate fertilizer per mu as The base fertilizer is 1m wide, 20cm high, and 40cm wide as a seedbed; in spring, ditch the seedbed with a distance of 30cm, and the seeding rate is 2.5kg per mu; Keep 18,000 seedlings; and fertilize at the right time. The method of fertilization is once a month. For the first time, 10kg of urea per mu is applied, and the water is sprinkled after the rain or sprinkled, and the compound fertilizer is applied for the second and subsequent times. Apply 30kg of compound fertilizer per mu each time, open the ditch and spread, and cover the soil after fertilization. Select seedlings with a seedling height of 1.5m and a ground diameter of more than 0.8cm that are robust a...

Embodiment 3

[0033] A kind of method of afforestation in karst areas with low cut-off of beans, select flat terrain, good drainage and irrigation, and relatively fertile soil, carry out two plows and two harrows on the nursery land, harrow and harrow the fine soil, and apply 150kg calcium magnesium phosphate fertilizer per mu as The base fertilizer is 1m wide, 25cm high, and 40cm wide as a seedbed; in spring, ditch the seedbed with a distance of 30cm and a seeding rate of 3kg per acre; 20,000 seedlings; and timely fertilization, the method of fertilization is once a month, 10kg of urea per mu is applied for the first time, sprinkled after rain or sprinkled with water, and compound fertilizer is applied for the second and subsequent times. Apply 30kg of compound fertilizer per acre every time, open a ditch and apply it, and cover the soil after fertilization. Select seedlings with a seedling height of 1.5m and a ground diameter of more than 0.8cm that are robust and free of diseases and ins...

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Abstract

The invention discloses a low-trunk-cutting Zenia insignis Chun afforestation method for a karst area. The low-trunk-cutting Zenia insignis Chun afforestation method for the karst area is characterized by comprising the steps of strong seedling cultivation, soil preparation, low trunk cutting of nursery stocks, nursery stock planting and management conducted after planting, wherein strong seedling cultivation is conducted based on Zenia insignis Chun seedlings, mountain clearing and soil preparation are conducted, the trunks of the nursery stocks are cut off before being dug from a garden land, the lengths of the reserved portions of the trunks range from 16 cm to 22 cm, planting is conducted under the condition that the soil is wet after rain in January or February, and nutrient and water management and disease and pest control are well conducted after planting. According to the low-trunk-cutting Zenia insignis Chun afforestation method for the karst area, the survival rate of Zenia insignis Chun is increased to above 90% from 70%-80% after afforestation is conducted in the karst stony desertification area once, after-cultivation is not needed due to the fact that afforestation is achieved successfully at a time, the afforestation efficiency is improved, the vegetation recovery of the karst stony desertification area is accelerated, and good economic benefits, social benefits and ecological benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of forestry cultivation, and in particular relates to a method for afforestation in karst areas of Rendou with low stem cutting. Background technique [0002] Ren Bean ( Zenia insignis Chun.), also known as Rendoushu, Renmu, Pteropus chinensis, and Beheading Tree, is a large deciduous tree belonging to Hematoxylinaceae. The height of the tree is 30m, and the diameter at breast height is more than 1m. It is an endemic species in China and a national second-level key protected plant. Naturally distributed in Guangxi, Guangdong, Hunan, Guizhou, Yunnan and other provinces (regions), it is also distributed in northern Vietnam. [0003] Rendou's root system has strong penetrating power, and can grow across rock gaps; Rendou is extremely resistant to drought, barrenness, rapid growth, strong germination, and can be germinated and renewed for multiple generations after felling; Rendou's trunk is straight and round,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G23/00
CPCY02A40/22Y02P60/40
Inventor 侯远瑞申文辉庞世龙陈金艳黄宏珊黄春妮黄小荣何琴飞
Owner GUANGXI FORESTRY RES INST
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