Now showing items 1-10 of 1836
Effects of hand weeding strip and nitrogen fertilizer on corn plants
The objective of the present research was to evaluate effects of different strip weed control associated with nitrogen fertilizer on corn applied after planting. The experiment was set and conducted in Botucatu, São Paulo ...
Interferência e estudos fitossociológicos da comunidade infestante na cultura do sorgo sacarino
This research was carried out to evaluate the interference periods and phytosociological indexes of the weed community on sweet sorghum, hybrid CVSW 80007, cultivated for two seasons in a year. The treatments were based ...
Weed-soybean interference studies in Brazil
Recently, a notable shift in weed patterns has occurred in some soybean growing regions, as a result of tillage system change and herbicide use. The weed communities are very diversified and strongly interfere with soybean ...
Determination of the critical period of weed control in corn using a thermal basis.
(Pesquisa Agropecuaria Brasileira, Brasilia, v.34, n.2, p.187-93, fev. 1999., 2011)
Avaliacao de roundup e diret no controle de plantas daninhas na cultura da erva-mate (Ilex paraguariensis A. St. Hill.).
(In: CONGRESSO SUL-AMERICANO DA ERVA MATE, 2.; REUNIAO TECNICA DA ERVA MATE, 3., 2000, Encantado. Anais. Porto Alegre: Comissao dos Organizadores / Universidade do Rio Grande do Sul / Fundacao Estadual de Pesquisa Agropecuaria, 2000. p.278-281., 2016)
A classification methodology for the risk of weed infestation using fuzzy logic
Despite modern weed control practices, weeds continue to be a threat to agricultural production. Considering the variability of weeds, a classification methodology for the risk of infestation in agricultural zones using ...
WEED INTERFERENCE IN EGGPLANT CROPS
(Univ Fed Rural Semi-arido-ufersa, 2017-10-01)
Uncontrolled weed growth interferes with the growth eggplants and crop yields. To control weeds, the main weed species must be identified in crop growing areas and during weed control periods, as weed species might vary ...
Weed seed germination and the light environment. Implications for weed management
Light regulates dormancy termination and the subsequent germination in many weed species. Under field conditions, the light environment of the seeds, which is perceived mainly by photoreceptors of the phytochrome family, ...
Períodes de controle de Brachiaria sp e seus reflexos na produtividade de Eucalyptus grandis
A field trial was conduced in Piratininga, São Paulo State, Brazil, from August to 1991 to May 1999, aiming to study the effects of weed interference on the productivity of Eucalyptus grandis W. Hill Ex Maiden. The ...