Effective microorganisms and their influence on vegetable production - a review
M. OLLE and I. H. WILLIAMS
本論分で著者らは、これまでに学術誌で発表されているEMが野菜の生長に及ぼす影響を検討した論文の内容を調査しました。
調査の結果、論文の70％がEMが野菜の生長に対してポジティブな効果があったと報告しています。※１
さらに、EMが野菜の収量に及ぼす影響を検討した22本の論文について調査しました。その結果、>84％で効果があったと報告しています。※2
そして著者らは調査したこれらの結果をまとめると「EMは病害虫の発生を減少させ、雑草から保護することにより野菜の品質及び収量を向上させることが出来る。その結果、持続可能な農業に貢献している。」と結論付けています。
※1：
70％効果あり
30％対象区と比べて変化なし
※2：
84％肯定的
12％影響なし
4％否定的
http://www.jhortscib.org/Vol88/88_4/2.htm
The Journal of Horticultural Science & Biotechnology
Vol. 88 No: 4
Title:
Effective microorganisms and their influence on vegetable production - a review
Authors:
M. OLLE and I. H. WILLIAMS
Abstract:
This review aims to describe the nature of effective microorganisms (EM) and how EM influence the growth, yield, quality, and protection of vegetable plants. EM comprise a mixture of live natural cultures of microorganisms isolated from fertile soils that are used to improve crop production. EM technology was developed over 40 years ago by Dr. Tero Higa in Japan. How EM act and interact in the soil-plant environment to suppress plant pathogens and disease, to conserve energy, to solubilise soil minerals, to aid the balance and ecology of soil microbes, and to improve photosynthetic efficiency and biological nitrogen fixation are described. In 70% of published studies, it was concluded that EM had a positive effect on the growth of vegetables, while, in the other 30%, they had no significant influence. In this investigation, among 22 reports on the effects of EM on the yields of vegetables, 84% were positive, 4% were negative, and 12% showed no significant influence. It is concluded that EM can improve the quality and yield of vegetables by reducing the incidence of pests and diseases, and by protecting against weeds, thereby contributing to sustainable agriculture.