h e dregne

H. E. Dregne · Elsevier Scientific Pub. Co.

237 sayfa · 1976

Arid regions / Arid regions agriculture / Soils

H. E. Dregne · Harwood Academic Publishers

242 sayfa · 1983

Desertification / Désertification / Desertifikation / Trockengebiet / Aridity and arid regions

H. E. Dregne · American Society of Agronomy

622 sayfa · 1983

Dry farming

H. E. Dregne · U.S. Dept. of Agriculture, Economic Research Service

33 sayfa · 1982

Agricultural productivity / Desertification / Food supply / Land degradation / Soil degradation

H. E. Dregne · Foundation for Environmental Conservation

Sayfa sayısı yok · 1984

Kategori yok

H. E. Dregne · Texas Tech Univ Pr

Sayfa sayısı yok · 1992

Kategori yok

H. E. Dregne · Yayınevi bilinmiyor

33 sayfa · 1942

Boron / Sugar beet

Hassan M. Hassan, H. E. Dregne, World Bank. Land, Water, and Natural Habitats Division, World Bank. Environmentally Sustainable Development · World Bank, Environment Dept.

53 sayfa · 1997

Ecosystem management / Arid regions ecology / Environmental policy