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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Upland rice under zero tillage in Brazil: Cultivar performance and soil management for early vigour improvement.
Autores:  MACHADO, P. L. O. A.
COBUCCI, T.
PACHECO, L. P.
CASTRO, A. P.
BARRIGOSSI, J. A.
SILVA, J. G.
WRUCK, F. J.
MADARI, B. E.
Data:  2011-10-26
Ano:  2011
Palavras-chave:  Aerobic rice
Furrow compaction
Arroz
Oryza sativa
Plantio direto
Variedade
Rice
No-tillage
Isoptera
Cultivars
Resumo:  In Brazil, upland (rainfed) rice aka aerobic rice is planted on approximately 1.5 M ha. In the 1970s and 1980s, it was a common pioneer crop after deforestation with almost 4.5 M ha planted each year. The average grain yield of cultivars like Araguaia and Guarani ranged from 2.0 to 3.0 t ha-1, but the grain type (long and wide with low amylose content) resulted in a sticky rice after cooking. It was rejected by the consumers once long and slender, non-sticky irrigated rice was introduced in the market. Studies were initiated to tackle those problems, as an attempt to enable the cultivation of upland rice under ZT in acid tropical soils in the Brazilian Cerrado and Amazonia biome. Field experiments started for investigating the potential of modern upland rice cultivars at different row spacing to enable the use of the same ZT planter used for soybean (40-cm spacing), the interaction of seed chemical treatment and furrow compaction on rice plant mortality by termites in the early growth stages, and the effect of cover crops on mulching and soil NO3- and NH4+. Material and Methods

2011
Tipo:  Artigo em anais de congresso (ALICE)
Idioma:  Inglês
Identificador:  30927

http://www.alice.cnptia.embrapa.br/handle/doc/904115

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/44532/1/wcca.pdf
Editor:  In: WORLD CONGRESS ON CONSERVATION AGRICULTURE, 5.; FARMING SYSTEMS DESIGN AND LANDCARE CONFERENCE, 3., 2011, Brisbane, Australia. Resilient food systems for a changing world. Brisbane: Australian Centre for International Agricultural Research, 2011.
Relação:  Embrapa Arroz e Feijão - Artigo em anais de congresso (ALICE)
Formato:  3 p.
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