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
-
1
Soil conservation and management in developing countries : report of an expert consultation held in Rome, 22-26 November 1976.
I whakaputaina 1977Ngā marau: “…Soil conservation Developing countries.…”
Pukapuka -
2
Soil and plant testing and analysis report of an expert consultation held in Rome, 13-17 June 1977
I whakaputaina 1980Pukapuka -
3
-
4
-
5
The expert consultation on the ASOCON information service, Los Banos, The Philippines, 6-9 November 1990.
I whakaputaina 1991Ngā marau:Pukapuka -
6
-
7
-
8
-
9
-
10
Conserving soil resources : European perspectives : selected papers from the First International Congress of the European Society for Soil Conservation /
I whakaputaina 1994Ngā marau: “…Soil conservation Europe.…”
Conference Proceeding Pukapuka -
11
-
12
-
13
-
14
-
15
Soil conservation in the Pacific : a symposium and a panel discussion /
I whakaputaina 1963Ngā marau: “…Soil conservation Pacific Area.…”
Conference Proceeding Pukapuka -
16
-
17
-
18
Soil management for the conservation of soil nitrogen /
I whakaputaina 1991Ngā marau: “…Soil conservation.…”
Pukapuka -
19
-
20
The Philippines recommends for soil conservation 1977.
I whakaputaina 1977Ngā marau: “…Soil conservation Philippines.…”
Pukapuka