Yazar
m von oppen
2 cilt bulundu.
Cilt sonuçları
Tank irrigation in semi-arid tropical India
M. von Oppen · International Crops Research Institute for the Semi-Arid Tropics
38 sayfa · 1987
Irrigation / Farm ponds / Reservoirs
Wind Erosion in Niger
Andreas A. C. Buerkert, B. E. Allison, M. von Oppen · Springer London, Limited
280 sayfa · 2011
Sustainable agriculture / Agriculture, africa