Agriculture and state Agriculture 251 Economic aspects 215 History 122 Food supply 75 Government policy 75 Rural conditions 51 更多 ... Economic conditions 47 Economic policy 46 Politics and government 44 Rural development 39 Land reform 37 Environmental aspects 34 Produce trade 34 Peasants 31 Land tenure 23 Social aspects 23 Agricultural laws and legislation 22 Nutrition policy 22 Farmers 21 Agricultural subsidies 19 Agriculture and politics 17 Sustainable agriculture 16 Political activity 15 Political aspects 15 Social conditions 15 Agricultura y estado 14 Agricultural development projects 14 Agricultural industries 14 Food security 14 少 ...