Data/hora: 22/09/2024 15:58:28

Biblioteca(s): 	Embrapa Amazônia Ocidental.	
Data corrente: 	20/11/2000	
Data da última atualização: 	04/12/2018	
Autoria: 	EMMERICH, S.; LOSCH, R.; LIEBEREI, R.	
Afiliação: 	University of Dusseldorf; University of Hamburg.	
Título: 	Root responses of four tropical useful trees to localized soil enrichment.	
Ano de publicação: 	2000	
Fonte/Imprenta: 	In: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS, 2000, Hamburg. Programa and abstracts... Hamburg: University, 2000.	
Páginas: 	p. 168.	
Idioma: 	Inglês	
Conteúdo: 	In this study the ability to detect and exploit nutrient-rich patches of four tropical useful trees (cupuacu, pupunha, castanha-do-Para, urucu) in an agroforestry system in Amazonia (Manaus-AM-Brasil) was examined. Therefore plastic mesh bags filled with nitrate-, phosphate- or magnesium- enriched soil were installed in the field allowing roots up to 5 mm in diameter to grow into. All four species approximately produced the same amount of root biomass in the mesh bags. castanha-do-Para had a wide spread root system and produced 65% of the rots in the mesh bags in the stem area of the neighboring trees. Urucu had the highest root length density (cm root/cm3 soil) by investing the same amount of root biomass, because of a very small diameter of the fine roots and a high specific root length (cm root/g root dry mass). Of the four species urucu exploited the nutrient enriched soil patches most efficient through its high root length density. The strategy of castanha-do-Para consted in a very wide-ranging exploration of the soil.	
Palavras-Chave: 	Agrofloresta; Amazonas; Brasil; Castranha do Para; Fertilizers application; Manaus; Root; Transport de nutriente; Urucu.	
Thesagro: 	Adubação; Adubo; Bactris Gasipaes; Bertholletia Excelsa; Bixa Orellana; Castanha do Para; Conservação do Solo; Cultivo Multiplo; Cupuaçu; Fertilizante; Floresta Tropical Úmida; Matéria Orgânica; Pupunha; Raiz; Theobroma Grandiflorum.	
Thesaurus Nal: 	agroforestry; multiple cropping; nutrient transport; organic matter; soil conservation; tropical rain forests.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Amazônia Ocidental (CPAA)	
Exemplares: 	CPAA - (5564-1) - ADD - PL - -- - R634.99 - G375p - 2000.00193 - DIS
CPAA - (5613-1) - ADD - PL - -- - R634.99 - G375p - 2000.00193 - DIS