TY - JOUR T1 - Ecological problems and nitrogen balance in vegetable crops growing JO - Eurasian Journal of Soil Science VL - 4 IS - 1 SP , EP - 62 - 69 KW - Agricultural system, fertilization, nitrogen balance, nitrogen leaching, vegetables, environment pro SN - 2147-4249 DO - 10.18393/ejss.03607 PY - 2014 PB - Federation of Eurasian Soil Science Societies ER -