NOVELTY - Forest enclosing liquid fertilizer manufacture tank (9), fowl house and crop cultivation field (3), paddy field (4), pond are arranged in order. The fruit tree is cultivated in the crop field, by cutting fertilizer application groove at the ground of the tree which is sun shielded by using cover, so as to generate thin fibrous root group at ground surface vicinity of tree.    USE - As farming system in detached island, remote colony.    ADVANTAGE - The farming system which does not produce environmental pollution is obtained, by producing high quality agricultural products in detached island, remote colony.    DETAILED DESCRIPTION - Forest enclosing liquid fertilizer manufacture tank (9), fowl house and crop cultivation field (3), paddy field (4), pond are arranged in order. The fruit tree is cultivated in the crop field, by cutting fertilizer application groove at the ground of the tree which is sun shielded by using cover, so as to generate thin fibrous root group at ground surface vicinity of tree.    The sum area of the forest, crop field and the paddy field, is about 1000 tsubos. A pump (6) pumps the water in the pond to water storage tank (7) of the forest. The area of the forest is more than 1/3 of sum total area. The fowl is fed with lactic acid fermentation green feed which is mixed with grains such as raw green feed or dry green feed, rice bran, soybean, soybean cake, wheat, maize, bean curd less, in large quantities. Chlorophyll in green feed removes the bad smell of meat, flesh, egg or feed of the hen. The liquid fertilizer manufacture tank has aerobic acidic fermentation region, acidic reduction anaerobic fermentation region, alkaline anaerobic fermentation region, and ageing sterilization region. The tank performs solid-liquid separation processing so as to separate organic matter and liquid at about 13-32 degreesC. Generation of gas which consists of methane, carbon dioxide and nitrogen in acidic reduction anaerobic fermentation region is performed, to start decomposition of the liquid fertilizer. A slurry is decomposed in alkaline anaerobic fermentation region so as to obtain liquid fertilizer. The pathogenic microbe and parasite insect egg in the slurry are sterilized in the ageing sterilization region. The liquid fertilizer is manufactured by maintaining the temperature of the organic matter slurry constant.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of the farming system. (Drawing includes non-English language text).    inner network of forest (1)    casing (2)    crop field (3)    paddy field (4)    holding basin (5)    storage pump (6)    water storage tank (7)    hen house and green house (8)    liquid fertilizer manufacture tank (9)