Soggetti all'interno della tua ricerca.
Soggetti all'interno della tua ricerca.
14
Agriculture
7
Economic aspects
3
History
2
Agricultural laborers
2
Agriculture and state
2
Corn
2
Grain
1
Agricultural extension work
1
Agricultural price supports
1
Agricultural processing
1
Agricultural productivity
1
Arid regions agriculture
1
Blé
1
Combines (Agricultural machinery)
1
Communication
1
Crop yields
1
Crops and water
1
Decision making
1
Diseases and pests
1
Dissertations, Academic
1
Dry farming
1
Economic policy
1
Efficiëntie
1
Farm income
1
Farm management
1
Fungi in agriculture
1
Harvesting
1
Harvesting machinery
1
Information services
1
Irrigation farming
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21di Mango, Nelson A. R.
Pubblicazione 2002c2002.xx, 322 p. : ill., maps ; 24 cm.Soggetti: “...Agriculture Economic aspects Kenya Siaya District....”
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22di Huibers, F. P.
Pubblicazione 1985Wageningen : Landbouwhogeschool te Wageningen, 1985.xi, 193 p. : ill., map ; 24 cm.Soggetti: “...Arid regions agriculture India....”
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23Optimum cereal combine harvester operation by means of automatic machine and threshing speed controldi Huisman, W. (Willem), 1944-
Pubblicazione 1983Wageningen, The Netherlands : Dept. of Agricultural Engineering, Agricultural University, 1983.293, [1] p. : ill. ; 24 cm.Soggetti: “...Combines (Agricultural machinery)...”
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24di Levert, Philip, 1906-
Pubblicazione 1934Wageningen : H. Veenman & zonen, 1934.ix, 346 p. ; 25 cm.Soggetti: “...Agricultural laborers Indonesia Java....”
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25di Versteeg, M. N. (Mark Nicolaas), 1946-
Pubblicazione 1985Wageningen : Grafisch bedrijf Ponsen en Looijen, [1985]182 p. : ill., map ; 24 cm.Soggetti: “...Agricultural productivity Peru....”