Establishment trials conducted at Pakhribas Agricultural Centre in 1979-80 [of fodder tree seedlings, Dhankuta, hill area, Nepal]

abonos agricultural chemicals aliment pour animaux alimentos para animales altiplanos amendement du sol asia asie cobertura vegetal cultivation cultivo engrais engrais organique enmiendas del suelo essai farmyard manure feeds fertilizers forest products methode methods mulching nepal paillage physiographic features pratique culturale productos productos forestales products produit produit agrochimique produit forestier pruebas recherche research soil amendments trials