PROBLEM TO BE SOLVED: To cultivate a plant by supplementarily using, as a fertilizer, an organic fertilizer, which consists mainly of an amino acid of Miso brewed using soybeans, Koji (malted rice), and salt, and is subjected to aerobic fermentation, and mineral, and fixing atmospheric nitrogen.SOLUTION: An artificial chemical substance is not used, and tillage is performed lightly. The amino acid of Miso, and the organic fertilizer, which is subjected to aerobic fermentation, and mineral are supplementarily used. Atmospheric nitrogen is fixed to an absolute anaerobes which settle down in a deep layer of soil. The plant is cultivated with the fertilizer.COPYRIGHT: (C)2014,JPO&INPIT【課題】 肥料として、大豆と麹と食塩を用いて醸造された味噌のアミノ酸を主体とし、好気発酵させた有機肥料とミネラルを補助的に用い、空中窒素を固定して植物を栽培する。【解決手段】 人口的化学物質は不使用とし耕耘を浅くし、味噌のアミノ酸と、好気発酵させた有機肥料とミネラルを補助的に使用し、土壌の深層に定住している絶対嫌気性菌に空中窒素を固定させ、その肥料で植物を栽培する。