Low-trunk-cutting Zenia insignis Chun afforestation method for karst area

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

Active Publication Date: 2014-11-26
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 damag

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method of afforestation in karst areas, where beans are allowed to be low-cut and dried. Select flat terrain, good drainage and irrigation, and relatively fertile soil, plow and harrow the nursery twice, rake the soil finely, and apply 150 kg of calcium-magnesium-phosphate fertilizer per mu As a base fertilizer, use a furrow width of 1 m, a furrow height of 20 cm, and a footpath width of 40 cm as a seedbed; in spring, the seedbed is sown in furrows with a furrow distance of 30 cm and a seeding rate of 2 kg per mu; when the seedlings reach 15 cm Carry out thinning and replenishing seedlings, keep 15,000 seedlings per mu; and fertilize in good time, the method of fertilization is once a month, 10 kg of urea is applied per mu for the first time, sprinkled after rain or sprayed with water, and the second time And apply compound fertilizer in the future, apply compound fertilizer 30 kg per mu each time, open ditch and spread, cover soil after fertilization. Select seedling...

Embodiment 2

[0029] A method of afforestation in karst areas, where beans are allowed to be low-cut and dried. Select flat terrain, good drainage and irrigation, and relatively fertile soil, plow and harrow the nursery twice, rake the soil finely, and apply 150 kg of calcium-magnesium-phosphate fertilizer per mu As a base fertilizer, use a furrow width of 1 m, a furrow height of 20 cm, and a footpath width of 40 cm as a seedbed; in spring, the seedbed is sown in furrows with a furrow distance of 30 cm and a seeding rate of 2.5 kg per mu; when the seedlings reach 15 cm Carry out thinning and replenishing seedlings, keep 18,000 seedlings per acre; and fertilize in due course, the method of fertilization is once a month, 10 kg of urea is applied per acre for the first time, sprinkled after rain or sprinkled with water, and the second time And apply compound fertilizer in the future, apply compound fertilizer 30 kg per mu each time, open ditch and spread, cover soil after fertilization. Select...

Embodiment 3

[0033] A method of afforestation in karst areas, where beans are allowed to be low-cut and dried. Select flat terrain, good drainage and irrigation, and relatively fertile soil, plow and harrow the nursery twice, rake the soil finely, and apply 150 kg of calcium-magnesium-phosphate fertilizer per mu As a base fertilizer, use a furrow width of 1 m, a furrow height of 25 cm, and a footpath width of 40 cm as a seedbed; in spring, furrows are sown on the seedbed with a furrow distance of 30 cm and a seeding rate of 3 kg per acre; when the seedlings reach 15 cm Carry out thinning and replenishing seedlings, keep 20,000 seedlings per mu; and fertilize in good time, the method of fertilization is once a month, 10 kg of urea is applied per mu for the first time, sprinkled after rain or sprinkled with water, and the second time And apply compound fertilizer in the future, apply compound fertilizer 30 kg per mu each time, open ditch and spread, cover soil after fertilization. Select see...

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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 30 m, and the diameter at breast height is more than 1 m. 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, and the yield is high High, fine wood structure, strong compressive an...

Claims

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Application Information

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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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