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Book
Year: 1991 Publisher: Rome : FAO,
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Composts. --- Composts --- Composting --- soil fertility --- Vegetable crops --- Tropical zones --- FAO
Article
Year: 1991 Publisher: [S.l.] : [s.n.],
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soil fertility --- animal husbandry --- agriculture. --- agriculture --- Senegal. --- Senegal
ISBN: 0851863876 Year: 1991 Publisher: Cambridge : Royal Society of Chemistry,
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Book
ISBN: 079231221X Year: 1991 Publisher: Dordrecht Kluwer
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Crops and soils --- Crop yields --- Fertilizers --- Soil fertility
Book
Year: 1991 Publisher: Muscle Shoals : International Fertilizer Development Center,
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fertilizers --- Developing countries --- Appropriate technology --- Rural development --- soil fertility --- Rapport annuel --- Ifdc
Dissertation
Year: 1991
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Irrigation --- Soil --- Ion exchange capacity --- Edaphic factors --- soil chemicophysical properties --- Climatology --- Salinity --- soil fertility --- Chemical composition --- Wastewater irrigation --- Wastewater --- Morocco
Map
Year: 1991 Publisher: Gembloux : Centre de Cartographie des Sols de la Belgique Méridionale (IRSIA),
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Soil --- Soil water balance --- Soil profiles --- Soil classification --- Topography --- soil morphological features --- soil fertility --- land use --- Belgium
ISSN: 00741884 ISBN: 920010391X 9789200103919 Year: 1991 Volume: vol *121 Publisher: Vienna : International Atomic Energy Agency,
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Plants --- Soil chemistry --- Stable isotopes in ecological research --- Nutrition --- Congresses --- Stable isotopes in pollution research --- Stable isotopes in plant nutrition research --- Stable isotopes in soil fertility research --- Isotope radioactif --- Radioisotopes --- Nutrition des plantes --- plant nutrition --- Fertilité du sol --- soil fertility --- environment --- FAO --- IAEA --- Technique des traceurs --- Tracer techniques --- Austria --- Issue --- Report --- Stable isotopes in pollution research - Congresses --- Stable isotopes in plant nutrition research - Congresses --- Stable isotopes in soil fertility research - Congresses --- Isotope stable
Dissertation
Year: 1991 Publisher: Gent : Rijksuniversiteit, Faculteit van de Landbouwwetenschappen,
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horticulture. --- horticulture --- Soil --- soil fertility --- nitrogen cycle --- Nitrogen content --- nitrogen fertilizers --- Slurry --- Organic fertilizers --- Mineralization --- Intensive husbandry --- Intensive farming --- Fumier de porc --- Belgium
Dissertation
Year: 1991 Publisher: Amsterdam : Wageningen : Royal Tropical Institute ; Landbouwuniversiteit te Wageningen,
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woody plants --- Dioscorea alata --- Vegetable crops --- biomass --- agroforestry --- soil amendments --- soil fertility --- Tropical zones --- Field experimentation --- Flemingia macrophylla --- Staking --- Gliricidia sepium --- Leucaena leucocephala --- Role auxiliaire --- Tuteur vivant
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