Culture soil for gardening is provided to allow garden plants to grow well even indoor without additional manuring by mixing granitic sand with a compost, pearlite and vermiculite and inoculating the mixed soil with photosynthetic bacteria and antagonistic microorganisms. Culture soil for gardening comprises: 50~60vol% of granitic sand; 25~35vol% of a compost made by mixing 50vol% of livestock(cattle or pig) excrement and 50vol% of tree bark(5mm), and aerobically fermenting the mixture for 6mon or more; 5~10vol% of pearlite; and 5~10vol% of vermiculite. The culture soil is inoculated with 0.1~1% of photosynthetic bacteria and antagonistic microorganisms, based on the weight of the culture soil.
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