תוצאות חיפוש - ((((water consultation) OR (water conservation))) OR (water (conservation OR construction)))

Elementary soil and water engineering מאת Schwab, Glenn Orville, 1914-

Soil and water conservation for productivity and environmental protection מאת Troeh, Frederick R.

נושאים:

Soil and water conservation research, 1956-71

נושאים:

Farmers' practices and soil and water conservation programs /

נושאים:

Rain catchment and water supply in rural Africa a manual מאת Nissen-Petersen, Erik

נושאים: “...Water conservation Africa...”

Plant environment and efficient water use /

נושאים:

Proceedings of the national workshop on Urban Water Demand Management, Alexander Library, Perth Cultural Centre, April 29 - May 1, 1986 /

נושאים:

Land evaluation criteria for irrigation report of an Expert Consultation held in Rome 27 February- 2 March 1979 /

Land evaluation guidelines for rainfed agriculture : report of an expert consultation held in Rome, 12-14 December 1979 /

Earth, air, and water : resources and environment in the late 20th century / מאת Simmons, I. G. 1937-

Forest influences : the effect of woody vegetation on climate, water, and soil, with applications to the conservation of water and the control of floods an erosion / מאת Kittredge, Joseph

Land use and water resources in temperate and tropical climates מאת Pereira, H. C. (Herbert Charles), 1913-

נושאים:

Guidelines for economic appraisal of watershed managementprojects / מאת Gregersen, H. M.

נושאים:

Watershed management field manual : slope treatment measures and practices.

נושאים:

More water for arid lands : promising technologies and research opportunities : report of an ad hoc panel of the Advisory Committee on Technology Innovation, Board on Science and T...

נושאים:

Soil erosion by water in the tropics / מאת El-Swaify, S. A.

Conservation and you / מאת Hitch, Allen S.

Water treatment principles and design /

נושאים:

Water for every farm : Yeomans keyline plan /

International Symposium on Water Erosion, Sedimentation and Resource Conservation, October 9-13, 1990, Dehradun, India.