Data/hora: 22/09/2024 16:42:00

Biblioteca(s): 	Embrapa Pesca e Aquicultura.	
Data corrente: 	29/11/2018	
Data da última atualização: 	04/12/2018	
Autoria: 	ALMEIDA, R. E. M. de; FAVARIN, J. L.; OTTO, R.; FRANCO, H.; REIS, A. F. B.; MOREIRA, L. A.; TRIVELIN, P.	
Afiliação: 	RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA; JOSE LAERCIO FAVARIN, ESALQ; RAFEL OTTO, ESALQ; HENRIQUE FRANCO; ANDRÉ FROES BORJA REIS, ESALQ; LILIAN ANGELICA MOREIRA, ESALQ; PAULO TRIVELIN, CENA.	
Título: 	Nitrogen recovery efficiency for corn intercropped with palisade grass.	
Ano de publicação: 	2018	
Fonte/Imprenta: 	Bragantia, v. 77, n. 4, p. 557-566, 2018.	
DOI: 	10.1590/1678-4499.2017242	
Idioma: 	Inglês	
Conteúdo: 	Intercropping corn and palisade grass is a technique to increase straw production, soil C contents, nutrient cycling and crop yield. However, concerns arise from nitrogen (N) uptake by the intercropping crop causing reduction in the yield of the corn. Our objective was to evaluate N recovery efficiency (NRE), and the N dynamics in the soil-plant system in corn intercropped with palisade grass. A field trial was carried out in Bahia, Brazil, evaluating two cropping systems: corn (monoculture) and corn intercropped with palisade grass sowed between rows on the same day as the corn crop, with four replicates in a completely randomized block design. Nitrogen (150 kg&#8729;ha?1of 15N-urea) was applied at sowing to determine NRE, which means the amounts of N-fertilizer uptake in corn and palisade grass, the amounts of N-fertilizer in soil and the 15N-fertilizer balance. Neither the NRE (63.3% in monoculture and 57.2% in intercropping) nor corn grain yield (9,800 kg&#8729;ha?1 in monoculture and 9,671 kg&#8729;ha?1 in intercropping) was affected by intercropping, which accumulated only 2.1 kg&#8729;ha?1 of N-fertilizer or 1.4% N rate. In addition, palisade grass yielded 2,265 kg&#8729;ha?1 of dry matter. The balance indicated that 82.4% of N-fertilizer was recovered in the monoculture and 86.9% in the intercropping. Intercropping palisade grass does not affect grain yield or N corn nutrition and has the potential to increase straw production contributing to maintenance of no-till.	
Thesagro: 	Cerrado; Milho; Nitrogênio; Plantio Direto; Zea Mays.	
Thesaurus Nal: 	Corn; Grasses; Nitrogen; No-tillage; Urochloa ruziziensis.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/187284/1/CNPASA-2018-bragantia.pdf	
Registro original: 	Embrapa Pesca e Aquicultura (CNPASA)	
Exemplares: 	CNPASA - (729-1) - UPC - AP - DD - CNPASA_AP58 -  - 2018.058 - DIS