Agriculture 123 History 72 Collective farms 34 Farm management 28 Forests and forestry 28 Labor productivity 22 Economic aspects 21 more ... State farms 16 Soils 15 Agricultural industries 13 Agriculturists 12 Agricultural innovations 9 Operas 8 Accounting 7 Periodicals 7 Agricultural geography 6 Agricultural machinery 6 Finance 6 Hunting 6 Management 6 National parks and reserves 6 Russian 6 Agriculture and state 5 Biography 5 Cattle 5 Conservation of natural resources 5 Economic conditions 5 Fisheries 5 Fishers 5 Horses 5 less ...