Crop rotation of sweet potato, cassava and gabi [taro] with legumes [soybean, mungbean, bush bean and peanut] as a cultural management system [study conducted in the Philippines]

abonos abonos verdes agricultural chemicals alimentos amendement du sol araceae arachis arachis hypogaea asia asie colocasia colocasia esculenta convolvulaceae cover plants cropping patterns crops cultivos cultivos de grano dicotiledoneas dicotyledons economic plants engrais engrais organique engrais vert enmiendas del suelo euphorbiaceae feed crops feed legumes fertilizers filipinas foods fruit crops frutales geraniales glycine glycine (genre) glycine (genus) glycine max grain crops grain legumes green manures hortalizas (plantas) hortalizas leguminosas industrial crops ipomoea ipomoea batatas legumes leguminosae leguminosas leguminosas de grano leguminosas forrajeras manihot manihot esculenta mode de culture monocotyledons mung beans nut crops oil crops papilionoideae philippines plantas plantas azucareras plantas de cobertura plantas de nueces plantas feculentas plantas forrajeras plantas industriales plantas oleaginosas plantas protectoras plante plante de couverture plante de culture plante de protection plante industrielle plante racine plants produit agrochimique produit alimentaire protective plants root crops root vegetables rosales rotational cropping soil amendments spathiflorae starch crops sugar crops tubiflorae vegetable crops vegetable legumes