Ground cover management and farmyard manure effects on soil nitrogen dynamics, productivity and economics of organically grown lettuce (Lactuca sativa L. subsp. secalina)
Manojlovi? Maja, ?abilovski Ranko, Nikoli? Ljiljana, D?igurski Dejana, ?ereme?i? Sr?an, Bavec Martina
Journal of Integrative Agriculture . 2017, (04): 947 -958 .  DOI: 10.1016/S2095-3119(16)61565-4