English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

1 RESUMO Avaliou-se o efeito do herbicida Trifluralina como inibidor de intrusao radicular, em gotejamento enterrado, durante a fase inicial de desenvolvimento do cafeeiro. Diferentes doses e frequencias de aplicacao foram testadas numa lavoura cultivada em um Latossolo Vermelho Distroferrico (LVdf). O delineamento experimental, inteiramente casualizado, foi realizado com quatro doses de Trifluralina (0,00; 0,05; 0,15 ou 0,25 mL i.a. por gotejador) e tres frequencias (3, 6 e 12 meses de intervalo) com quatro repeticoes cada. O gotejamento enterrado constituiu-se de tubo gotejador de 15 m de comprimento, com emissores com vazao de 1,0 L h -1 espacados a cada 0,45 m, instalados a 0,20 m a direita da linha de plantio, na profundidade de 0,20 m. Resultados permitiram concluir que ate 18 meses apos o plantio, a lavoura cafeeira nao sofreu qualquer influencia no crescimento vegetativo com a aplicacao da Trifluralina, mesmo na dose mais elevada (0,25 mL do ingrediente ativo por gotejador). Nao foram observados entupimentos por intrusao radicular, mesmo sem aplicacao de Trifluralina. Palavras-chave: gotejamento subsuperficial, Coffea arabica L., Topazio MG 1190, Trifluralina, herbicida LIMA, P. L. T.; COLOMBO, A.; LIMA, L. A.; THEBALDI, M. S.; COLARES, M. de F. B.; GATTO, R. F. DOSES AND FREQUENCY OF TRIFLURALIN AS INHIBITOR OF ROOT INTRUSION IN SUB-SURFACE DRIP IRRIGATION  OF COFFEE PLANTS 2 ABSTRACT The effects of Trifluralin, used as an inhibitor of root intrusion in sub-surface drip irrigation (SDI), were evaluated at the initial growth  of coffee (Coffea Arabica L.) plants cultivated in an Oxisol soil.  The SDI system consisted of 15 meter long drip tape with 1.0 L/H outlets located at every 45 cm, installed 20 cm apart from the plant row at 20 cm deep. Trifluralin was tested in four doses (0.00; 0.05; 0.15or 0.25 mL a.i. per dripper) and 3 frequencies (3, 6 and 12 month interval) with 4 replications each.   The results revealed that up to 18 months after planting, no reduction in plant growth was observed, even for the highest application dose (0.25 mL a.i. per dripper).  No clogging was observed as a result of root intrusion, even with no application of Trifluralin. Keywords: subsurface drip, Coffea Arabica L., Topazio MG 1190, Trifluralin, herbicide

DOSES E FREQUÊNCIA DE TRIFLURALINA COMO INIBIDOR DE INTRUSÃO RADICULAR NO GOTEJAMENTO ENTERRADO EM LAVOURA CAFEEIRA