Результаты поиска - (((("soil construction") OR ("soil conservation"))) OR ("soil consultation"))
Предлагаемые темы внутри своего поиска.
Предлагаемые темы внутри своего поиска.
- Soil conservation 86
- Soil erosion 24
- Water conservation 12
- Soil management 7
- Soil fertility 6
- Land use, Rural 5
- Soil degradation 5
- Sustainable agriculture 5
- Agriculture 4
- Government policy 4
- Land use 4
- Soil science 4
- Soils 4
- Agricultural conservation 3
- Agricultural ecology 3
- Agricultural engineering 3
- Conservation tillage 3
- Handbooks, manuals, etc 3
- Hydraulic engineering 3
- Planning 3
- Research 3
- Watershed management 3
- Agricultural systems 2
- Agroforestry 2
- Crops and soils 2
- Economic aspects 2
- Environmental aspects 2
- Management 2
- Nature conservation 2
- Sediment control 2
-
21
-
22
-
23
-
24
Management of upland watersheds : participation of the mountain communities /
Опубликовано 1983Предметы: -
25
Guidelines for the control of soil degradation.
Опубликовано 1983Предметы: “...Soil conservation....”
-
26
Soil conservation in the Pacific : a symposium and a panel discussion /
Опубликовано 1963Предметы: “...Soil conservation Pacific Area....”
Материалы конференции -
27
Soil and water conservation in semi-arid areas /
Опубликовано 1987Предметы: “...Soil conservation...”
-
28
Erosion control ... protecting our future : proceedings of Conference XVII, International Erosion Control Association February 27 & 28, 1986, Dallas, Texas.
Опубликовано 1986Предметы:Материалы конференции -
29
Soil management : a world view of conservation and production /
Опубликовано 1987Предметы:Неизвестно -
30
Vanishing land and water : soil and water conservation in dry lands /
Опубликовано 1988Предметы: “...Soil conservation....”
-
31
-
32
-
33
Hold this land : a history of soil conservation in New Zealand /
Опубликовано 1973Предметы: “...Soil conservation New Zealand History....”
-
34
International Symposium on Water Erosion, Sedimentation and Resource Conservation, October 9-13, 1990, Dehradun, India.
Опубликовано 1990Предметы:Материалы конференции -
35
Land degradation in South Asia : its severity, causes and effects upon the people.
Опубликовано 1994Предметы: -
36
Conserving soil resources : European perspectives : selected papers from the First International Congress of the European Society for Soil Conservation /
Опубликовано 1994Предметы: “...Soil conservation Europe....”
Материалы конференции -
37
-
38
Soil and water conservation for productivity and environmental protection
Опубликовано 1980Предметы: “...Soil conservation...”
-
39
Soil and water conservation research, 1956-71
Опубликовано 1975Предметы: “...Soil conservation India...”
-
40