Preparation method of plant cultivation substrate and cultivation substrate prepared by such method
A cultivation substrate and plant technology, applied in the field of utilization of agricultural and forestry organic waste, can solve the problems of low material utilization rate, long fermentation cycle, high nitrogen loss, etc., and achieve rich nutrients, facilitate absorption and utilization, and promote maturity Effect
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Embodiment 1
[0055] 1. Pretreatment of agricultural and forestry waste raw materials
[0056] Use a pulverizer (Beijing Zhongyi Shenlong Machinery Co., Ltd.) to crush garden waste branches (twigs trimmed from willows, pagoda trees, poplars, etc.) into particles with a particle size of ≤ 1 cm to obtain waste particles, and simultaneously measure The organic carbon content and nitrogen content of the waste particles are measured and the results are shown in Table 1.
[0057] Determination of the nitrogen content of waste particles by the Kjeldahl method;
[0058] Potassium dichromate volumetric method-external heating method is used to measure the organic carbon content in the cultivation mixed substrate. The specific measurement method is as follows: After adding the air-dried cultivation mixed substrate into the dry hard test tube, add K 2 Cr 2 o 7 Standard solution and concentrated H 2 SO 4 , then put the test tube at 170-180°C to boil the liquid in the test tube for 5 minutes, then ...
Embodiment 2
[0091] 1. Pretreatment of agricultural and forestry waste raw materials
[0092] Use a pulverizer (Beijing Zhongyi Shenlong Machinery Co., Ltd.) to pulverize the garden waste (the pruned branches of willow, pagoda tree, poplar, etc., fallen leaves and flowers) into particles with a particle size of ≤ 1 cm to obtain waste particles. , while measuring the organic carbon content and nitrogen content of waste particles, and the results are shown in Table 1.
[0093] 2. Prepare bamboo vinegar dilution
[0094] Add bamboo vinegar liquid to water, mix uniformly, be mixed with bamboo vinegar liquid dilution for subsequent use, wherein the volume ratio of bamboo vinegar liquid and water is 1: 1000, the pH value of bamboo vinegar liquid is 2.5, and density is 0.9g / ml; The organic acid content is 10%, and the phenolic compound content is 6%.
[0095] 3. The first fermentation treatment
[0096] 3-1) Add urea to the waste granules, adjust the C / N ratio of the waste granules to 27, and ...
Embodiment 3
[0110] 1. Pretreatment of agricultural and forestry waste raw materials
[0111] 1-1) Use a pulverizer (Beijing Zhongyi Shenlong Machinery Co., Ltd.) to pulverize agricultural waste (corncobs, straw) into particles with a particle size ≤ 1cm to obtain waste particles, and simultaneously measure the organic carbon of the waste particles content and nitrogen content, the measurement results are shown in Table 1.
[0112] 2. Prepare wood vinegar dilution
[0113] Add wood vinegar to water, mix well, be mixed with wood vinegar dilution for subsequent use, wherein the volume ratio of wood vinegar and water is 1: 1000, the pH value of wood vinegar is 3.2, and the density is 1.0g / ml, The organic acid content is 7%, and the phenolic compound content is 8%.
[0114] 3. The first fermentation treatment
[0115] 3-1) Add urea to the waste granules, adjust the C / N ratio of the waste granules to 30, and prepare the first fermentation granules, wherein 0.739 kg of urea is added per 100 kg ...
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