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

Energy-efficient buildings

Soil and water conservation in semi-arid areas / מאת Hudson, Norman W.

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Guidelines for predicting crop water requirements מאת Doorenbos, J.

Soil water management /

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Water harvesting for improved agricultural production : proceedings of the FAO Expert Consultation, Cairo, Egypt, 21-25 November 1993.

Water : rethinking management in an age of scarcity / מאת Postel, Sandra

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Prevention of water pollution by agriculture and related activities : proceedings of the FAO Expert Consultation, Santiago, Chile, 20-23 November 1992.

The water efficient garden : a practical and innovative guide from planning through to established gardens / מאת Archer, John, 1941-

נושאים: “...Landscape gardening Water conservation Australia....”

Irrigation scheduling for water & energy conservation in the 80's the proceedings of the Irrigation Scheduling Conference, December 14-15, 1981, the Palmer House, Chicago, Illinois

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

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

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Soil and water conservation research, 1956-71

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Farmers' practices and soil and water conservation programs /

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

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

Plant environment and efficient water use /

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

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

Jobs for tomorrow the potential for substituting manpower for energy מאת Stahel, Walter R.

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-

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