Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1013492
Research center of Embrapa/Collection: Embrapa Arroz e Feijão - Artigo em periódico indexado (ALICE)
Date Issued: 2015
Type of Material: Artigo em periódico indexado (ALICE)
Authors: FAGERIA, N. K.
FERREIRA, E. P. de B.
KNUPP, A. M.
Additional Information: NAND KUMAR FAGERIA, CNPAF; ENDERSON PETRONIO DE BRITO FERREIRA, CNPAF; ADRIANO MOREIRA KNUPP, CNPAF.
Title: Micronutrients use efficiency in tropical cover crops as influenced by phosphorus fertilization.
Publisher: Revista Caatinga, Mossoró, v. 28, n. 1, p. 130-137, jan./mar. 2015.
Language: en
Description: Deficiency of micronutrients is increasing in the recent years in cropping systems in many parts of the world and cover crops are important components of cropping systems. A greenhouse experiment was conducted to evaluate copper (Cu), iron (Fe), manganese (Mn) and zinc (Zn) use efficiency in 14 tropical leg-ume cover crops grown on an Oxisol. The P levels used were low (0 mg kg-1), medium (100 mg kg-1) and high (200 mg kg-1). The P X cover crops interactions were significant for Cu, Fe, Mn, and Zn use efficiency (tops dry weight/unit nutrient uptake). Hence, cover crop species varied in nutrient use efficiency with change in P levels. The micronutrient use efficiency was in the order of Cu > Zn > Mn > Fe. Higher Cu use efficiency was associated with lower uptake of this element, in the cover crop tops compared to other micronutrients. Similar-ly, lower efficiency of Fe and Mn was associated with their higher uptake in the tops of cover crops. Overall, Cu and Mn use efficiency was decreased when P level was raised from low to medium level and then it was constant. Iron use efficiency was increased with increasing P level but Zn use efficiency was constant with the addition of P fertilizer.
Thesagro: Adubo verde
Crotalaria
Mucuna
Leguminosa forrageira
Guandu
Microelemento
Planta de cobertura
Fósforo
NAL Thesaurus: Green manures
Cajanus
Data Created: 2015-04-14
ISSN: 1983-2125
Appears in Collections:Artigo em periódico indexado (CNPAF)

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