The effect of N, P, and K fertilizers on the production of winged bean storage root [study conducted in the Philippines]

alimentos alkali metals anatomia anatomie anatomy asia asie azote crops cultivos cultivos de grano dicotiledoneas dicotyledons economic plants elements filipinas foods fosforo gases gaz grain crops grain legumes hortalizas (plantas) hortalizas leguminosas legumes leguminosae leguminosas leguminosas de grano metal metales metales alcalinos metals nitrogen no metales nonmetals papilionoideae philippines phosphore phosphorus physical states plant anatomy plantas plante plante de culture plante racine plants potasio potassium production produit alimentaire psophocarpus psophocarpus tetragonolobus racine root crops root vegetables roots rosales storage organs vegetable crops vegetable legumes