Nutritious injection liquid for apple tree and its preparation method
A technology for nutrient injection and apple tree, applied in the field of fertilizers, can solve problems such as lignin in black liquor from papermaking that has not yet been seen, and achieve the effects of avoiding low fertilizer utilization, good fertilizer efficiency and good effect.
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Embodiment 1
[0030] Take alkaline straw pulp black liquor, lower the temperature of the black liquor to 30°C, add Saccharomyces cerevisiae AS 2.23 strains, the amount of which is 1 / 20 of the black liquor volume, mix evenly, store at room temperature for 8 days, and make the black liquor The solution is acidified to a pH value of 9.0, and the obtained brown-yellow anaerobic black liquor has a sweet smell; then, 92% sulfuric acid is uniformly and slowly added to the anaerobic black liquor, and the process of adding is fully stirred until the pH of the black liquor The value is 7.0; under normal pressure, slowly add 65% nitric acid solution with 2% black liquor solid content into the black liquor, stir, raise the temperature to 70°C and keep it for 1 hour, then slowly add 10 65% nitric acid solution with black liquor solid content, boiled for 2 hours. During the addition of nitric acid solution, the NO produced 2 Absorb in time with lye. After the nitration reaction is finished, filter with...
Embodiment 2
[0034] Take alkaline straw pulp black liquor, lower the temperature of the black liquor to 35°C, add Saccharomyces cerevisiae AS 2.24 strain, the amount of the incorporation is 1 / 25 of the black liquor volume, mix evenly, store at room temperature for 5 days, and make the black liquor The solution is acidified to a pH value of 8.0 to obtain brownish-yellow anaerobic black liquor with a sweet smell; then, 95% sulfuric acid is evenly and slowly added to the anaerobic black liquor, and the process of adding is fully stirred until the pH of the black liquor The value is 6.0; under normal pressure, slowly add 60% nitric acid solution with 3% black liquor solid content into the black liquor, stir, raise the temperature to 70°C and keep it for 0.5 hours, then slowly add 5 60% nitric acid solution with black liquor solid content, boiled for 2 hours. During the addition of nitric acid solution, the NO produced 2 Absorb in time with lye. After the nitration reaction is finished, filte...
Embodiment 3
[0038] Take soda straw pulp black liquor, lower the temperature of the black liquor to 45°C, add S. The solution is acidified to a pH value of 85, and the obtained brown-yellow anaerobic black liquor has a sweet smell; then, 98% sulfuric acid is uniformly and slowly added to the anaerobic black liquor, and the process of adding is fully stirred until the pH of the black liquor is The value is 6.5; under normal pressure, slowly add 65% nitric acid solution with 5% black liquor solid content into the black liquor, stir, raise the temperature to 70°C and keep it for 1 hour, then slowly add 8 65% nitric acid solution with black liquor solid content, boiled for 2 hours. During the addition of nitric acid solution, the NO produced 2 Absorb in time with lye. After the nitration reaction is finished, filter with a sieve, and dry the filtrate to obtain a powder for use.
[0039] Take soda straw pulp black liquor to acidify lignin, add 4 times the weight of water, stir, make the mixt...
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