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Telecommunication technology --- mestverwerking --- landbouw --- oppervlaktewater --- afval --- meststoffen

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In Nederland is er te veel mest, in Afrika te weinig; kinderen en volwassenen vertellen hoe dit probleem zou kunnen worden opgelost. Met veel kleurenfoto's. Vanaf ca. 10 jaar.

mestverwerking --- meststoffen --- Didactics of social education --- lager onderwijs --- Didactics of primary education --- landbouw --- duurzame ontwikkeling

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Environmental protection. Environmental technology --- Soil pollution. Soil purification --- meststoffen --- mestverwerking --- Ecotechnologie --- Engrais --- Mest --- Milieutechnologie --- 636.002.68 --- 502.34 --- ecologie --- mest --- emissie --- ammoniak --- drogen --- verbranding --- BBT --- 631.867 --- Mestverwerking --- landbouwproductie --- milieuproblematiek --- milieutechnologie --- milieuvervuiling --- milieuvriendelijke productieprocessen --- veeteelt --- waterzuivering --- Animal wastes. Animal dung. Animal manure--(as a problem) --- Social, administrative, legislative measures on nature conservation --- Agrotechnology and Food Sciences. Agricultural Engineering --- Manure treatment --- Manure treatment. --- 502.34 Social, administrative, legislative measures on nature conservation --- 636.002.68 Animal wastes. Animal dung. Animal manure--(as a problem)