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Lightweight medium for promoting growth of keteleeria cyclolepis seedlings

A light-substrate and growth-promoting technology, which is applied in the field of light substrate and forest tree seedling cultivation of Jiangnan Chinese fir, can solve the problems of poor quality of forest formation, difficulty in forest formation, and obstacles to the promotion of plantation forests, so as to improve the quality of seedlings, make them strong, Good effect of fertilizer utilization

Inactive Publication Date: 2015-10-28
GUANGXI FORESTRY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is also reflected in other tree species of Pinaceae, such as Yunnan pine, which has the phenomenon of difficulty in forming forests and poor quality of forests in the first few years after afforestation, which greatly hinders the promotion of planted forests

Method used

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  • Lightweight medium for promoting growth of keteleeria cyclolepis seedlings
  • Lightweight medium for promoting growth of keteleeria cyclolepis seedlings
  • Lightweight medium for promoting growth of keteleeria cyclolepis seedlings

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preparation example Construction

[0028] Substrate preparation: On March 20, 2013, seedling substrates were prepared at the same time as sand sowing and accelerating germination of the seeds of the Jiangnan japonica family. First of all, after the matrix raw materials are mixed uniformly according to the volume ratio, they are sprayed and disinfected with a 0.5% potassium permanganate solution with a mass concentration of 0.5% (it is better to drench thoroughly) to ensure that eggs and germs are killed. After 5 days of disinfection, fully mix the composite microbial agent and the light substrate at a mass ratio of 1:1000 (treatments 1, 2, 5 and 6), pour a small amount of water and then stack them. When the temperature in the stack reaches 45°C and lasts for 10 days , turned over once, fermented again for 10 days and put into cups, and transplanted seedlings into cups on April 21, 2013. In March 2014, when the seedlings came out of the nursery, various indicators were measured and variance analysis was carried ...

Embodiment 1

[0035] The preparation process of the light matrix is ​​as follows:

[0036] (1) Prepare the base matrix:

[0037] Raw materials by volume percentage: 40% of humus surface soil, 45% of decomposed coconut peat, 5% of mushroom dregs, and 10% of perlite. The solution was drenched and disinfected, and spread out to dry for 7 days after 24 hours;

[0038] (2) Add compound microbial agent

[0039] Fully mix the composite microbial agent and the basic matrix according to the mass ratio of 1:1000, water the stack until the water content in the stack reaches and maintains 40%, when the temperature in the stack reaches 40°C and lasts for 10 days, Turn the stack once, ferment again for 10 days, and then fill the seedlings in cups.

Embodiment 2

[0041] The preparation process of the light matrix is ​​as follows:

[0042] (1) Prepare the base matrix:

[0043] Raw materials by volume percentage: 35% humus surface soil, 40% decomposed coconut peat, 10% mushroom dregs, 15% perlite, mix the above raw materials and mix well, then use potassium permanganate with a mass concentration of 0.5% The solution was drenched and disinfected, and spread out to dry for 5 days after 24 hours;

[0044] (2) Add compound microbial agent

[0045] Fully mix the composite microbial agent and the basic matrix according to the mass ratio of 1:1000, water the stack until the water content in the stack reaches and maintains 45%, when the temperature in the stack reaches 45°C and lasts for 10 days, Turn the stack once, ferment again for 10 days, and then fill the seedlings in cups.

[0046] In embodiment 1 and embodiment 2, the pretreatment method of humic topsoil is: pass through the sieve, remove dead branches, gravel and large particles. The ...

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Abstract

The invention discloses a lightweight medium for promoting growth of keteleeria cyclolepis seedlings. The preparing process of the lightweight medium includes the steps that firstly, a basic substrate is prepared; according to the volume ratio, 35%-40% of humic topsoil, 40%-45% of mature coco coir, 5%-10% of mushroom residues and 10%-15% of perlite are mixed and stirred evenly, drenching and disinfection are conducted through a potassium permanganate solution with the concentration being 0.5%, and the mixture is spread after 24 hours and aired for 5 days to 7 days; secondly, functional bacteria compounding is conducted; a composite microbial agent and the basic substrate are mixed according to the mass ratio of 1:1000, stacking is conducted after a small amount of water is poured, stacking body overturning is conducted once after the temperature in a stacking body reaches 40 DEG C to 45 DEG C and is maintained for 10 days, and then the lightweight medium is obtained after fermentation is conducted for 10 days. The lightweight medium is good in physical behavior and nutrient performance, nutrients of the substrate are utilized more efficiently through the compounded functional bacteria, the lightweight medium is low in carbon and environmentally friendly, and the cost is saved. According to the keteleeria cyclolepis container seedlings cultured through the lightweight medium, the survival rate of nursery stocks reaches over 93.5%, the total biomass of the nursery stocks is increased by over 33.0%, the root shoot ratio is adjusted, the number of lateral roots is increased, the nursery stocks are robust, terminal buds are full, the woodiness level is high, and the quality of the nursery stocks is improved remarkably when outplanting is conducted.

Description

technical field [0001] The invention belongs to the technical field of agricultural production, and relates to a tree seedling raising technology, in particular to a growth-promoting light substrate for raising seedlings of Chinese cedar fir. Background technique [0002] Jiangnan oil fir is a large evergreen tree belonging to the genus of Pinaceae. The main characteristics of this tree species are strong stress resistance, extreme drought tolerance, and fast growth in the later stage. Its trunk is straight, the wood is solid, and the texture is straight. In addition to its wide range of uses, it is also an excellent garden tree species. In recent years, Jiangnan Youshan has attracted much attention because of its excellent material, fast growth and strong ecological functions, especially in southern provinces (regions), Guangxi, Guangdong, Fujian, and Zhejiang have listed it as a precious and important development. Timber tree species, and the cultivation of precious timbe...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05F17/00
CPCY02W30/40
Inventor 何应会蒋燚李娟刘菲梁瑞龙姜英王勇戴菱韦铄星林建勇刘雄盛黄荣林潘小丽
Owner GUANGXI FORESTRY RES INST
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