%0 Journal Article
%T Ecological problems and nitrogen balance in vegetable crops growing
A% Tsetska Simeonova 
A% Dimitranka Stoicheva
A% Petra Alexandrova
%J Eurasian Journal of Soil Science
%V 4
%N  1
%P 62 - 69
%@ 2147-4249
%D  2014
%l - Federation of Eurasian Soil Science Societies