Production with "ECO" stamp needs legislation, otherwise the biological control is unthinkable
1993
Penelov, V. (Institut po Zashchita na Rasteniyata, Kostinbrod (Bulgaria))
AGROVOC关键词
书目信息
页码
pp. 10-11
其它主题
Polucion; Agricultura organica; Control biologico; Proteccion de las plantas
语言
保加利亚语
团体作者
Institut za Zashchita na Rasteniyata, Kostinbrod (Bulgaria). S"yuz na Agronomite v B"lgariya
1993-08-15
AGRIS AP