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| MOTA, M. do S.; LEHMANN, J.; SCHROTH, G.. |
| Studies on the effect of fertilization on soil acidity and pH dynamics in a mixed tree croping system with castanha-do-Para (Brazil nut), cupuacu, pupunha (peach palm), urucu (annatto) and pueraria.Fertilizer at four different levels (30%, 100%+P and 30%-N-lime, of the recommended fertilization, Embrapa Amazonia Ocidental, Manaus-AM, Brasil) was applied. Fertilization at a level of 30%-N-lime produced highest acidity compared to the other levels of fertilization. The effect of fertilization on soil acidity was restricted to a depth of 0 cm-5 cm. Pueraria and urucu presented the highest acidity at all. depths. The effec of soil pH was opposite to acidity, highest for cupuacu and pupunha and lowest for urucu at all depths. |
| Tipo: Parte de livro |
Palavras-chave: Agrofloresta; Urucu; Soil fertily; Fertilizers application; Cover plants.; Adubação; Bactris Gasipaes; Bertholletia Excelsa; Bixa Orellana; Castanha do Para; Cobertura do Solo; Cupuaçu; Cultivo Multiplo; Conservação do Solo; Fertilidade do Solo; Floresta Tropical Úmida; Leguminosa; Pupunha; Pueraria Phaseoloides; Theobroma Grandiflorum.; Pueraria; Agroforestry; Legumes; Multiple cropping; Soil conservation; Tropical rain forests.. |
| Ano: 2000 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/670039 |
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| MOTA, M. do S.; LEHMANN, J.; SCHROTH, G.. |
| Study on the fertilizer effects on P, K, Ca and Mg contents in mixed tred cropping system (castanha-do-Para, pupunha, cupuacu, pueraria). Fertilizers at four different levels (30%, 100%, 100%+P and 30%-N-lime) of the recommended fertilization, Embrapa Amazonia Ocidental, Manaus-AM, Brasil). The high soil nutrient contents under pupunha indicated that this species does not need the large amounts of fertilizers applied. For urucu, the P and K fertilization could be reduced. Generally, the species effect was more clearly visible below 15 cm depth, whereas the effect of fertilizationdominated the nutrient differences at the topsoil. |
| Tipo: Parte de livro |
Palavras-chave: Agrofloresta; Urucu; Brasil; Amazonas; Manaus; Tropical rain forest; Fertilizers application; Cover plants.; Adubação; Bactris Gasipaes; Bertholletia Excelsa; Bixa Orellana; Castanha do Para; Cobertura do Solo; Conservação do Solo; Cultivo Multiplo; Cupuaçu; Fertilidade do Solo; Floresta Tropical Úmida; Leguminosa; Pupunha; Pueraria Phaseoloides; Theobroma Grandiflorum.; Agroforestry; Legumes; Multiple cropping; Soil fertility.; Soil conservation. |
| Ano: 2000 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/670040 |
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