Sludge organic fertilizer for promoting vegetation restoration as well as preparation method and applications thereof

An organic fertilizer and vegetation restoration technology, which is applied in the preparation of organic fertilizers, organic fertilizers, applications, etc., can solve the problems of lack of plant growth regulators, insufficient nitrogen content, high phosphorus and potassium content, etc., to promote the vegetation restoration process and compost nutrients The effect of complete content and reasonable nutrient ratio

Active Publication Date: 2014-08-06
HUAZHONG AGRI UNIV
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  • Claims
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Problems solved by technology

But this method also has following some defects: 1) for the greening special-purpose fertilizer of the initial stage of planting, the content of phosphorus and potassium is relatively high and the nitrogen content is relatively insufficient; Plant growth regulator, on the one hand, plant growth regulators can promote vegetation recovery, and on the other hand, they can significantly increase the activity of microbial flora during composting

Method used

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  • Sludge organic fertilizer for promoting vegetation restoration as well as preparation method and applications thereof
  • Sludge organic fertilizer for promoting vegetation restoration as well as preparation method and applications thereof
  • Sludge organic fertilizer for promoting vegetation restoration as well as preparation method and applications thereof

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Embodiment 1

[0039] The preparation technology of embodiment 1-sludge organic fertilizer of the present invention

[0040] 1. Compostable materials

[0041] The lake bottom sludge (dried to a water content lower than 10% during use) excavated from the East Lake Passage Project of the East Lake Scenic Area in Wuhan City, Hubei Province is crushed and used as compost material (crushed) together with straw (crushed) The particle size of the composting material is 2-60mm), and the air-dried sludge and straw (by dry weight ratio) are mixed at a ratio of 1.5:1 or 1.2:1 or 1.8:1 as composting material.

[0042] 2. Compost Recipe

[0043] According to the finished product of producing 100kg sludge organic fertilizer, take 75kg of air-dried or dried lake bottom sludge (water content controlled below 10%), 50kg of straw (water content below 10%), 60-70kg of clear water, and plant growth regulation Seaweed extract 0.75-1.0kg, compost agent VT-10000.125-0.25kg, molasses or brown sugar 0.125-0.25kg, ur...

Embodiment 2

[0050] Embodiment 2-application verification of lake bottom sludge organic fertilizer prepared by the present invention

[0051] (1) Preparation embodiment of lake bottom sludge organic fertilizer

[0052] Concrete process is according to the process of embodiment 1.

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Abstract

The invention belongs to the technical field of fertilizers, and relates to a sludge organic fertilizer for promoting vegetation restoration and produced by using lakebed sludge, as well as a preparation method and applications thereof, and the preparation method is characterized in that through adding straws, composting inoculants, chemical nitrogen fertilizers and plant growth regulators into lakebed sludge dredged in an East Lake tunnel engineering of Wuhan, a compost is prepared. In a finished product of the sludge organic fertilizer, the organic matter content is 35-45%, and the total N content is 0.7-1.0%. The sludge organic fertilizer disclosed by the invention is complete in nutrients and reasonable in proportioning, conforms to the early nutrient absorption regularity of vegetation restoration, and can significantly promote vegetation growth and accelerate the process of vegetation restoration. Through taking arbors such as camphors and german oaks and shrubs such as osmanthus trees and pittosporum tobira as optimal embodiments, compared with a contrast set, the SPAD (soil and plant analyzer development) value of new leaves is increased by 11.4-15.6%, and the leaf area is increased by 13.6-40.7%. After the fertilizer is applied, the soil organic matter is increased by 14.5-15.3% in comparison with a contrast set, and the total N content is increased by 5.1-5.9%.

Description

technical field [0001] The invention belongs to the technical field of fertilizer development and application, and in particular relates to a sludge organic fertilizer that can promote vegetation restoration by using lake bottom sludge as a raw material, a preparation method and application thereof. Background technique [0002] During the construction of the Donghu Passage in Wuhan City, Hubei Province, due to the large construction area, the natural vegetation and soil of the excavated mountain were severely damaged, and it was urgent to restore the natural vegetation and soil of the excavated mountain. Usually, the key to vegetation restoration lies in the construction of initial vegetation communities. However, due to the severe damage of the original surface soil during the excavation process, the newly formed soil is very deficient in effective nutrients, which seriously limits the growth of plants and also affects the establishment of initial vegetation restoration com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05F17/00
CPCY02W30/40
Inventor 朱春阳刘胜祥汪民郭慧娟刘司浪
Owner HUAZHONG AGRI UNIV
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