Ngā hua rapu - (( soil conservation ) OR ( soil consultation ))
Ngā kaupapa kua whakahuatia i roto i tō rapu.
Ngā kaupapa kua whakahuatia i roto i tō rapu.
- Soil conservation 86
- Soil erosion 26
- Soils 14
- Water conservation 14
- Land use 11
- Soil management 9
- Sustainable agriculture 7
- Land use, Rural 6
- Soil degradation 6
- Soil fertility 6
- Soil science 6
- Agricultural conservation 5
- Agriculture 5
- Planning 5
- Research 5
- Government policy 4
- Organic fertilizers 4
- Plants 4
- Watershed management 4
- Agricultural ecology 3
- Agricultural engineering 3
- Agricultural systems 3
- Analysis 3
- Classification 3
- Conservation tillage 3
- Environmental aspects 3
- Fertilizers 3
- Handbooks, manuals, etc 3
- Hydraulic engineering 3
- Management 3
-
41
Guidelines for the control of soil degradation.
I whakaputaina 1983Ngā marau: “…Soil conservation.…”
Pukapuka -
42
Vanishing land and water : soil and water conservation in dry lands /
I whakaputaina 1988Ngā marau: “…Soil conservation.…”
Pukapuka -
43
-
44
-
45
Soilerosion by water : some measures for its control on cultivated lands
I whakaputaina 1965Ngā marau:Pukapuka -
46
-
47
-
48
Erosion control ... protecting our future : proceedings of Conference XVII, International Erosion Control Association February 27 & 28, 1986, Dallas, Texas.
I whakaputaina 1986Ngā marau:Conference Proceeding Pukapuka -
49
A study of the reasons for success or failure of soil conservation projects /
I whakaputaina 1991Ngā marau: “…Soil conservation projects.…”
Pukapuka -
50
Farmers' practices and soil and water conservation programs /
I whakaputaina 1991Ngā marau: “…Soil conservation Arid Regions.…”
Conference Proceeding Pukapuka -
51
International Symposium on Water Erosion, Sedimentation and Resource Conservation, October 9-13, 1990, Dehradun, India.
I whakaputaina 1990Ngā marau:Conference Proceeding Pukapuka -
52
-
53
Soil erosion in the tropics : principles and management /
I whakaputaina 1990Ngā marau:Tē mōhiotia -
54
Soil and water conservation research, 1956-71
I whakaputaina 1975Ngā marau: “…Soil conservation India…”
Pukapuka -
55
Soils, their properties and management : a soil conservation handbook for New South Wales /
I whakaputaina 1991Ngā marau: “…Soil conservation Australia New South Wales.…”
Pukapuka -
56
The conservation of lands in Asia and the Pacific (Clasp) : a framework for action /
I whakaputaina 1992Ngā marau: “…Nature conservation.…”
Pukapuka -
57
-
58
-
59
The dirt doctors : a jubilee history of the Soil Conservation Service of NSW /
I whakaputaina 1988Ngā marau: “…Soil conservation Citizen participation.…”
Pukapuka -
60
Land degradation in South Asia : its severity, causes and effects upon the people.
I whakaputaina 1994Ngā marau:Pukapuka