Torthaí cuardaigh - water (conservation* OR consultation*)
Topaicí molta laistigh de do chuardach.
Topaicí molta laistigh de do chuardach.
- Water conservation 30
- Soil conservation 20
- Irrigation 6
- Energy conservation 5
- Soil erosion 5
- Soils 5
- Plants 4
- Water 4
- Watershed management 4
- Agricultural engineering 3
- Hydraulic engineering 3
- Management 3
- Natural resources 3
- Organic fertilizers 3
- Water resources development 3
- Analysis 2
- Conservation of natural resources 2
- Drainage 2
- Fertilizers 2
- Hydrological stations 2
- Irrigation engineering 2
- Land use 2
- Landscape gardening 2
- Organic wastes 2
- Organic wastes as fertilizers 2
- Papua New Guinea. Department of Environment & Conservation 2
- Pollution 2
- Recycling 2
- Renewable energy sources 2
- Research 2
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61
Improved use of plant nutrients report of the expert consultation on better exploitation of plant nutrients held in Rome 18-22 April 1977.
Foilsithe / Cruthaithe 1978LEABHAR -
62
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63
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64
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65
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66
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67
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68
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69
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70
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71
-
72
Soil and plant testing as a basis of fertilizer recommendations /
Foilsithe / Cruthaithe 1980LEABHAR -
73
Application of nitrogen-fixing systems in soil improvement and management
Foilsithe / Cruthaithe 1982LEABHAR -
74
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75