Soil substrate suitable for transplanting sand pinus thunbergii and preparation and use method of soil substrate
A soil and matrix technology, applied in the field of black pine transplanted soil matrix in sandy land, can solve the problems of heavy salinization in coastal sandy land, poor permeability of sandy soil compaction, unsuitable black pine growth, poor water retention performance in sandy land, etc. Low, reduce waste disposal, prevent black pine root rot effect
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[0026] A preparation method of soil substrate suitable for rhizosphere filling of black pine transplantation on sandy land, comprising the following steps:
[0027] 1) Crush the branch materials and crush them to a particle size ≤5mm, and the proportion of the particle size ≤2mm is not less than 50%; the crushed branch materials are added at a ratio of 10-50kg quicklime and 100-150kg urea per ton and mix well , Add water to the humidity of 55-60%, adjust the pH to 6.5; add the obtained mixture into the fermentation tank, and steam sterilize; when the mixture is lowered to room temperature, add the mixed bacterial agent and stir evenly, maintain the fermentation temperature at 60-65℃, and ferment It takes 10-14 days to get the decomposed material of branches and branches;
[0028] (2) Add the branch wood decomposed material obtained in step (1) with planting soil, plant fiber, bentonite, citric acid residue, citric acid production wastewater, organic fertilizer, and water retention ...
Embodiment 1
[0033] (1) Prepare the soil matrix according to the following components and volume ratios: 40% planting soil, 30% plant fiber, 15% branch wood maturity, 4% bentonite, 4% citric acid residue, 5% citric acid production wastewater, organic fertilizer 1.92%, water retention agent 0.08%, wherein the citric acid residue is a waste residue produced in the process of producing citric acid with corn or cassava as the main raw material with a water content of 16%. The citric acid production wastewater is selected from the waste liquid produced during the production of citric acid by using corn or cassava as the main raw material, and the pH value is 5.4.
[0034] Crush the branch wood to a particle size ≤ 5mm, and the proportion of the particle size ≤ 2mm is not less than 50%; add 40kg quicklime and 120kg urea per ton to the crushed branch wood, mix well, add water to 56% humidity , Adjust the pH to 6.5; add the obtained mixture into the fermentor, and steam sterilize; when the mixture is...
Embodiment 2
[0038] (1) Prepare soil matrix according to the following components and volume ratios: planting soil 41.9%, plant fiber 25%, branch wood maturity 15%, bentonite 4%, citric acid residue 4%, citric acid production wastewater 8%, organic fertilizer 2%, water retention agent 0.1%, wherein the citric acid residue is a waste residue produced in the process of producing citric acid with corn or cassava as the main raw material with a water content of 10%. The citric acid production wastewater is selected from the waste liquid produced during the production of citric acid by using corn or cassava as the main raw material, and the pH value is 5.1.
[0039] Crush the branch wood to a particle size of ≤5mm, and the proportion of the particle size ≤2mm shall not be less than 50%; add 10kg quicklime and 100kg urea per ton to the pulverized branch material, mix well, and add water to a humidity of 55% , Adjust the pH to 6.5; add the obtained mixture into the fermentor, and steam sterilize; wh...
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