Cold region rice seedling growing multi-potential medium
A technology for rice and cold regions, applied in the field of rice seedling raising all-energy quality and its preparation in cold regions, can solve the problems of complex operation, phytotoxicity, and less root system, increase rice yield, solve the problem of soil extraction, and have a high water storage rate Effect
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Embodiment 1
[0054] Almighty matrix of the present invention is prepared according to the following steps:
[0055] According to the volume ratio, select 40 parts of full, complete and shiny rice husk, 30 parts of fungus residue, 20 parts of straw and a density of 110kg / m 3, Particle size is 7 parts of expanded vermiculite of 2-4mm, and according to the weight parts of above-mentioned formula, every 100 parts weighs 3 parts of fertilizer, 0.75 part of fungicide and some sulfuric acid stand-by.
[0056] Step a, mix the rice husk and NaOH solution with a concentration of 0.65mol / L according to the ratio of solid to liquid ratio of 1:25, and treat it for 40min at a temperature of 65°C;
[0057] Extruding and puffing the rice husk after the above treatment, wherein the pressure condition is 6-15kg / cm 2 , the temperature condition is 160°C-200°C, and the expanded rice husk is obtained after extrusion and puffing.
[0058] Step b, fully mix the puffed rice husk obtained in step a with the abov...
Embodiment 2
[0064] According to the volume ratio, select 45 parts of full, complete and shiny rice husk, 27 parts of fungus residue, 20 parts of straw and a density of 110kg / m 3 , particle diameter are 5 parts of expanded vermiculites of 2-4mm, and according to the parts by weight of above-mentioned formula, every 100 parts take by weighing 1.5 parts of fertilizers, 1.5 parts of bactericides and some of sulfuric acid stand-by.
[0065] Step a, mix the rice husk and NaOH solution with a concentration of 0.85mol / L according to the ratio of solid to liquid ratio of 1:15, and treat it for 30min at a temperature of 85°C;
[0066] Extruding and puffing the rice husk after the above treatment, wherein the pressure condition is 6-15kg / cm 2 , the temperature condition is 160°C-200°C, and the expanded rice husk is obtained after extrusion and puffing.
[0067] Step b, fully mix the puffed rice husk obtained in step a with the above-mentioned fertilizer and fungicide, and let stand for 2-10 hours. ...
Embodiment 3
[0073] According to the volume ratio, select 50 parts of full, complete and shiny rice husk, 20 parts of fungus residue, 20 parts of straw and a density of 110kg / m 3 , Particle size is 7 parts of expanded vermiculite of 2-4mm, and according to the parts by weight of above-mentioned formula, every 100 parts weighs 2 parts of fertilizer, 1 part of fungicide and some sulfuric acid stand-by.
[0074] Step a, mix the rice husk and NaOH solution with a concentration of 0.75mol / L according to the ratio of solid to liquid ratio of 1:20, and treat for 35min at a temperature of 70°C;
[0075] Extruding and puffing the rice husk after the above treatment, wherein the pressure condition is 6-15kg / cm 2 , the temperature condition is 160°C-200°C, and the expanded rice husk is obtained after extrusion and puffing.
[0076] Step b, fully mix the puffed rice husk obtained in step a with the above-mentioned fertilizer and fungicide, and let stand for 2-10 hours.
[0077] Step c, dry the bacte...
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