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A substrate modifier suitable for planting trees on tropical coral islands

A kind of improver, coral island technology, applied in the field of substrate improver for tree planting on tropical coral islands, can solve the problems of low water holding capacity and low nutrient in coral islands, and achieve the effect of improving drought resistance

Active Publication Date: 2021-03-02
SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main function of using biochar to improve karst vegetable garden soil is to increase the availability of nitrogen, phosphorus and potassium nutrients (Liu Fang 2014). These technologies cannot solve the problems of low nutrients, high alkalinity, and low water holding capacity in coral islands.

Method used

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  • A substrate modifier suitable for planting trees on tropical coral islands
  • A substrate modifier suitable for planting trees on tropical coral islands
  • A substrate modifier suitable for planting trees on tropical coral islands

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Embodiment 1

[0021] 1. Formula

[0022] Aiming at factors such as lack of organic and inorganic colloids to maintain fertility, lack of nutrients, poor structure, poor water holding capacity, and high acidity and alkalinity in the coral island matrix, the following materials were combined to develop a scientific formula.

[0023] 1) Calcium-based bentonite, which has a very high ion exchange capacity (80-150cmol / kg), much higher than other inorganic colloids (kaolin 3-15, illite 10-40, ordinary red soil 15-25cmol / kg), so It has the function of adsorbing nutrient ions, and at the same time, it has the advantage of being weather-resistant than organic colloids, so it has a continuous fertilizer-keeping function. It is a key ingredient in this matrix-modified formula.

[0024] 2) Vermiculite is a light porous material. Since the substrate of coral islands is calcareous, it has strong adhesion after watering and is airtight. Adding vermiculite can improve air permeability and help root growth...

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Abstract

The invention discloses a substrate improving agent suitable for planting trees on tropical coral islands. It includes bentonite, vermiculite, peat, slow release fertilizer, water retaining agent, borax and ammonium molybdate. The present invention mainly aims at these key restrictive factors of plant growth, scientifically configures substrate improvement materials, focuses on solving problems such as nutrient supply and poor substrate structure, provides basic conditions for plant growth, and enables trees to grow healthily on coral island substrates.

Description

Technical field: [0001] The invention belongs to the field of coral island reef greening, and in particular relates to a matrix modifier suitable for planting trees on tropical coral islands. Background technique: [0002] The islands in the South my country Sea include many artificial islands and natural islands. The soil matrix is ​​composed of coral substances. The physical conditions of the matrix are very poor, lacking real soil, lack of nutrients, high alkalinity, and long-term exposure to strong light. Therefore, it is difficult to grow natural Vegetation, it is extremely difficult to establish artificial vegetation. How to transform the substrate to make vegetation grow healthily is a major issue facing our country. [0003] Due to the particularity of the matrix of coral islands, the matrix is ​​mainly composed of coral substances, and the core substances are calcium carbonate and magnesium carbonate. It turns out that the parent rock has been weathered for million...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G24/10A01G24/15A01G24/20A01G24/28A01G24/30A01G24/35C05G3/80
CPCA01G24/10A01G24/15A01G24/20A01G24/28A01G24/30A01G24/35C05C3/00C05G3/80C05D9/00C05D9/02C05F11/04
Inventor 李志安李应文任海邹碧夏汉平康明简署光庄萍王法明
Owner SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI