Ngā hua rapu - (( soil construction ) OR ( soil conservation ))*
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 16
- Water conservation 14
- Soil mechanics 13
- Foundations 11
- Land use 10
- Soil management 9
- Design and construction 7
- Soil degradation 7
- Sustainable agriculture 7
- Land use, Rural 6
- Soil fertility 6
- Soil science 6
- Agricultural conservation 5
- Agriculture 5
- Research 5
- Roads 5
- Soil stabilization 5
- Building 4
- Government policy 4
- Management 4
- Organic fertilizers 4
- Planning 4
- Plants 4
- Testing 4
- Watershed management 4
- Agricultural ecology 3
- Agricultural engineering 3
- Agricultural systems 3
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1
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2
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3
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4
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5
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6
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
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7
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8
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9
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10
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11
Soil conservation in the Pacific : a symposium and a panel discussion /
I whakaputaina 1963Ngā marau: “…Soil conservation Pacific Area.…”
Conference Proceeding Pukapuka -
12
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13
Soil management for the conservation of soil nitrogen /
I whakaputaina 1991Ngā marau: “…Soil conservation.…”
Pukapuka -
14
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15
The Philippines recommends for soil conservation 1977.
I whakaputaina 1977Ngā marau: “…Soil conservation Philippines.…”
Pukapuka -
16
Approved practices in soil conservation
I whakaputaina 1982Ngā marau: “…Soil conservation…”
Pukapuka -
17
Soil and water conservation engineering /
I whakaputaina 1993Ngā marau: “…Soil conservation.…”
Pukapuka -
18
Soil and water conservation engineering
I whakaputaina 1981Ngā marau: “…Soil conservation 641…”
Pukapuka -
19
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20