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| Silva,P.S.L.; Silva,P.I.B.; Silva,K.M.B.; Oliveira,O.F.; Jales,J.D.D.; Medeiros,J.L.B.. |
| The objectives of this work were to evaluate the floristic composition and dry biomass of weeds under the canopy of seven perennial species adapted to the Semi-Arid region of Brazil, and correlate these characteristics with growth traits of the perennial species. The following perennial species were evaluated in two experiments (E1 and E2): mesquite (Prosopis juliflora), jucá (Caesalpinia ferrea), white popinac (Leucaena leucocephala), mofumbo (Combretum leprosum), neem (Azadirachata indica), sabiá (Mimosa caesalpiniaefolia) and tamarind (Tamarindus indica). In E1, the seven species were evaluated in a random block design with four replicates and nine plants per plot. In E2, evaluation comprised four species (mesquite, jucá, white popinac, and tamarind) in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caatinga; Floristic composition. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582010000100009 |
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| Silva,P.S.L.; Oliveira,O.F.; Silva,P.I.B.; Silva,K.M.B.; Braga,J.D.. |
| Herbicides have simplified weed control, but the use of herbicides, besides being costly, resulted in the selection of herbicide-resistant weed biotypes and has become an environmental contamination factor. Herbicide use reduction is one of the goals of modern agriculture, with several alternatives being investigated, including intercropping. The objective of this study was to evaluate the effects of cowpea and corn cultivar intercropping on weed control and corn green-ear (immature ears with 80% humidity grains) and grain yield. A completely randomized block design with split-plots and four replications was used. AG 1051, AG 2060 and PL 6880 corn cultivars (assigned to plots) were submitted to the four treatments: no weeding, two hoe-weeding (22 and 41... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Vigna unguiculata; Cultivars; Green-ear yield; Grain yield. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582009000300009 |
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| Silva,P.S.L.; Silva,P.I.B.; Oliveira,V.R.; Barros,G.L.; Monteiro,A.L.. |
| Gliricidia (Gliricidia sepium) seedlings are usually beneficial to corn crops when planted between corn rows. The objective of this work was to assess the effects of corn intercropped with gliricidia and "sabiá" (Mimosa caesalpiniifolia), a species native to the Brazilian northeastern region, on weed control and corn green ear and grain yields. The experiment was carried out at Estação Experimental da Universidade Federal Rural do Semi-Árido - UFERSA (Mossoró, State of Rio Grande do Norte, Brazil). The experimental design consisted of randomized complete blocks (multifactorial design) with five replications, arranged in split-plots. The plots consisted of corn cultivars AG1051 and BM 2022; subplot treatments (six) were no-hoeing, twice-hoeing (at 20 and 40... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gliricidia sepium; Mimosa caesalpiniifolia; Zea mays; Corn green yield; Corn grain yield. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000300008 |
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| Silva,P.S.L.; Silva,K.M.B.; Silva,P.I.B.; Oliveira,V.R.; Ferreira,J.L.B.. |
| The reduction in herbicide use is one of the greatest interests for modern agriculture and several alternatives are being investigated with this objective, including the adoption of cultivars that suppress weeds. The objective of this study was to verify if maize cultivars develop differently, in competition with weeds, to produce green ears and grain. Randomized complete block design was used, with split-plots and five replications. Cultivars DKB 390, DKB 466, DKB 350, AG 7000, AG 7575 and Master, were evaluated in the plots, without weeding and two weedings (at 22 and 41 days after sowing) in sub plots. Twenty-one species were identified in the experimental area, the most frequent being Gramineae (Poaceae), Euphorbiaceae, Leguminosae (Fabaceae) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Green corn; Leaf; Root; Tolerance to weeds. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582010000100010 |
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| Silva,P.I.B.; Fontes,D.R.; Moraes,H.M.F.; Gonçalves,V.A.; Silva,D.V.; Ferreira,L.R.; Felipe,R.S.. |
| Objetivou-se, neste trabalho, avaliar o crescimento e o rendimento do milho e da braquiária em monocultivos e consorciados, com diferentes manejos das plantas daninhas. O experimento foi realizado em área de pastagem degradada, num Latossolo Vermelho-Amarelo distrófico. Os tratamentos foram arranjados em esquema fatorial 4 x 4 + 5, sendo o primeiro fator correspondente aos cultivares de milho (UFV M100, DKB 390, DKB 455 e DKB 789) em consórcio com Urochloa brizantha, combinados com os diferentes manejos de plantas daninhas - capinado; sem controle de plantas daninhas; atrazine (1,5 kg ha-1); e atrazine + nicosulfuron (1,5 kg ha-1 + 8 g ha-1) -, além dos monocultivos capinados de U. brizantha e dos quatro cultivares de milho. O delineamento experimental... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Urochloa brizantha; Plantio direto; Herbicida. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000200007 |
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