1. Biological nitrogen fixation for sustainable agriculture :extended versions of papers presented in the symposium, Role of Biological Nitrogen Fixation in Sustainable Agriculture, at the 13th Congress of Soil Science, Kyoto, Japan, 1990
پدیدآورنده :
کتابخانه: كتابخانه مركزي كشاورزى (طهران)
موضوع : $ANitrogen in agriculture$BCongresses,$ANitrogen$BFixation -- Congresses,$ASustainable agriculture$BCongresses
رده :
S
587
.
5
.
N5B56
1992
2. Management of biological nitrogen fixation for the development of more productive and sustainable agricultural systems :extended versions of papers presented at the Symposium on Biological Nitrogen Fixation for Sustainable Agriculture at the 15th Congress of Soil Science, Acapulco, Mexico, 1994
پدیدآورنده :
کتابخانه: كتابخانه مركزي كشاورزى (طهران)
موضوع : $ANitrogen in agriculture$BCongresses,$ANitrogen$BFixation -- Congresses,$ACropping systems$BCongresses,$ASustainable agriculture$BCongresses
رده :
S
587
.
5
.
N5S95
1994
