Results 61 to 70 of about 489 (136)

ATRIBUTOS FÍSICOS DO SOLO E CRESCIMENTO DE RAIZ DA SOJA APÓS CULTIVOS DE OUTONO-INVERNO

open access: yesRevista Brasileira de Engenharia de Biossistemas, 2019
Cultivos antecedentes podem modificar as condições físicas do solo, o desenvolvimento e produtividade das culturas. Objetivou-se avaliar os atributos físicos do solo e o crescimento de raízes da soja após cultivos de outono-inverno.
L. M. Ribeiro, D. S. Flauzino, G. Ceccon
doaj   +1 more source

Reduction of incidence of weeds in maize through the use of cover species [PDF]

open access: yesEmirates Journal of Food and Agriculture
This study aimed to evaluate the effectiveness of different cover crops in suppressing weed emergence and their influence on maize productivity under field conditions in Concepción, Paraguay (23°25'40.3"S, 57&deg ...
Modesto Da Silva Oviedo   +8 more
doaj   +3 more sources

EMBEBIÇÃO E PROFUNDIDADE DE SEMEADURA DE SEMENTES NÃO REVESTIDAS E REVESTIDAS DE FORRAGEIRAS

open access: yesColloquium Agrariae, 2017
O objetivo deste trabalho foi avaliar os efeitos do revestimento de sementes durante a embebição e na emergência e crescimento inicial de seis gramíneas do gênero Urochloa em diferentes profundidades de semeadura.
Luciana de Oliveira Derré   +4 more
doaj   +2 more sources

ADUBAÇÃO NITROGENADA NO FEIJOEIRO APÓS PALHADA DE MILHO E BRAQUIÁRIA NO PLANTIO DIRETO

open access: yesRevista Caatinga, 2014
The present study was carried out to evaluate the agronomic and technological performance of common-bean crop following three straw mulch production system (sole corn, corn-Urochloa ruziziensis inter- crop and sole U.
ANTONIO CARLOS DE ALMEIDA CARMEIS FILHO   +5 more
doaj  

Productivity of castor bean plants intercropped at different plant densities with Urochloa ruziziensis

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental
Castor bean is an important raw material to produce biofuel in Brazil and can be grown in several regions of the country due to its good adaptation and tolerance to high temperatures and water deficit.
Carlos F. dos S. Cordeiro   +3 more
doaj   +1 more source

Sowing depths of brachiaria in intercropping with corn in no tillage planting Profundidade de semeadura de braquiárias em consorciação com milho em plantio direto

open access: yesEngenharia Agrícola, 2013
The forage production in crop-livestock integration is critical both for formation of straw for no tillage planting and food for livestock farm. The experiment was conducted in the autumn/winter of 2009 and 2010, in the city of Selvíria -state of Mato ...
Rodolfo de N. Gazola   +4 more
doaj  

Seed Storage and Germination of Three Grass Species: Effect of Spikelet Weight and Dormancy

open access: yesBrazilian Archives of Biology and Technology
Dormancy is a plant strategy that distributes germination over time. Domestication changed this in many cultivated species. However, many still retain this characteristic because it has not been completely removed or domesticated, especially in apomictic
Fabiana Lima Abrantes   +2 more
doaj   +1 more source

Expression of apomixis genes during reproductive development in Urochloa decumbens and Urochloa ruziziensis (Poaceae)

open access: yesActa Scientiarum. Agronomy
This study aimed to correlate the developmental stages of the embryo sac with the morphometric traits of spikelets and to characterize the expression of the BbrizRan, BbrizSti1, and BbrizAGL6 genes in Urochloa ruziziensis (sexual) and U.
Mara Jane da Rocha   +6 more
doaj   +1 more source

Ammonium and nitrate in soil and upland rice yield as affected by cover crops and their desiccation time Amônio e nitrato no solo e produtividade do arroz de terras altas influenciados por plantas de cobertura e suas épocas de dessecação

open access: yesPesquisa Agropecuária Brasileira, 2012
The objective of this work was to evaluate the effect of cover crops and their desiccation times on upland rice yield and on the levels of nitrate and ammonium in a no-tillage soil.
Adriano Stephan Nascente   +2 more
doaj  

Complex polyploid and hybrid species in an apomictic and sexual tropical forage grass group: genomic composition and evolution in Urochloa (Brachiaria) species. [PDF]

open access: yesAnn Bot, 2023
Tomaszewska P   +9 more
europepmc   +1 more source

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