Gliricidia sepium intercropping for weed management in immature corn ear production

Leonardo Barreto Tavella, Paulo Sérgio Lima e Silva, Alex Lima Monteiro, Vianney Reinaldo de Oliveira, Patricia Liany de Oliveira Fernandes

Resumo


The goal of the study was to test the effects of combined weeding and gliricidia (Gliricidia sepium) intercropping for weed control in baby corn and green corn production. A completely randomized block design was employed, with split-plot and four replicates. Hybrids AG 1051 and BR 205 were subjected to the following treatments: A = two hoeings, 20 and 40 days after sowing (DAS); B = hoeing at 20 DAS + gliricidia intercropping following weeding; C = gliricidia intercropping established at the moment of corn sowing (GICS) + hoeing at 40 DAS; D = GICS; E = no weeding. Gliricidia was broadcast sown with 30 viable seeds m-2. The best treatments follow the order A > B > C as number of ears, fresh mass of ears with husks, fresh and dry masses of ears without husks for baby corn, and number of ears, fresh mass of ears with husks, fresh and dry masses of ears without husks for green corn. The worst results are observed for treatments D and E. Treatment D is only better than treatment E for the number of marketable ears without husks. No differences in the yields of immature ears exist between the hybrids.

Palavras-chave


Zea mays; Gliricidia sepium; Baby corn; Green corn

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Referências


ALMEIDA, I. P. C. et al. Baby corn, green ear, and grain yield of corn cultivars. Horticultura Brasileira, v. 23, p. 960-964, 2005.

ARIAS-ESTÉVEZ, M. et al. The mobility and degradation of pesticides in soils and the pollution of groundwater resources. Agriculture, Ecosystem and Environment, v. 123, p. 247-260, 2008.

CARMO FILHO, F.; OLIVEIRA, O. F. Mossoró: um município do semi-árido nordestino. Mossoró, Fundação Guimarães Duque/ ESAM. 1989. 62 p. (Col. Mossoroense, B., 672).

CARVALHO, L. B. et al. Interferência e estudo fitossociológico da comunidade infestante em beterraba de semeadura direta. Planta Daninha, v. 26, p. 291-299, 2008.

CHIKOYE, D. et al. Response of corn genotypes to weed interference and nitrogen in Nigeria. Weed Science, v. 56, p. 424-433, 2008.

CHIKOYE, D. et al. Response of speargrass (Imperata cylindrica) to cover crops integrated with handweeding and chemical control in maize and cassava. Crop Protection, v. 21, p. 145-156, 2002.

EMPRESA BRASILEIRA DE PESQUISA AGROPECUÁRIA. Centro Nacional de Pesquisa do Solo. Sistema brasileiro de classificação de solos. (2. Ed.) Brasília: Embrapa, 2006. 412 p.

KOZLOWSKI, L. A.; KOEHLER, H. S.; PITELLI, R. A. Épocas e extensões do período de convivência das plantas daninhas interferindo na produtividade da cultura do milho (Zea mays). Planta Daninha, v. 27, p. 481-490, 2009.

MAGANI, I. E. Weed control in sorghum - groundnut mixture in the simultaneous farming system of Southern Guinea Savanna zone of Nigeria. Journal of Animal & Plant Sciences, v. 1, p. 3-8, 2008.

MEROTTO JÚNIOR., A. et al. Redução da interferência de Brachiaria plantaginea (link) hitch. em milho através de capinas e aplicação de herbicidas em diferentes épocas. Planta Daninha, v. 18, p. 471-477, 2000.

OLIVEIRA, V. R. et al. Growth of arboreal leguminous plants and maize yield in agroforestry systems. Revista Árvore, v. 40, p. 679-688, 2016.

OLORUNMAIYE, P. M. Economic viability of integrated weed management in maize/cassava intercrop in Guinea savanna ecology of Nigeria. Agriculture & Biology Journal of North America, v. 2, p. 522-525, 2011.

OLORUNMAIYE, P. M.; OLORUNMAIYE, K. S. Effect of integrated weed management on weed control and yield components of maize and cassava intercrop in a southern Guinea savanna ecology of Nigeria. Australian Journal of Crop Science, v. 3, p. 129-136, 2009.

OYUN, M. B. Allelopathic potentialities of Gliricidia sepium and Acacia auriculiformis on the germination and seedling vigour of maize (Zea mays L.). American Journal of Agricultural and Biological Science, v. 1, p. 44-47, 2006.

REID, A. et al. Delaying control lengthens the anthesis-silking interval in maize. Weed Science, v. 62, p. 326-337, 2014.

RODRIGUES, A. C. P. et al. Períodos de interferência de plantas daninhas na cultura do sorgo. Planta Daninha, v. 28, p. 23-31, 2010.

SILVA, P. S. L. et al. Green ear yield and grain yield of maize after harvest of the first ear as baby corn. Horticultura Brasileira, v. 24, p. 151-155, 2006.

SILVA, P. S. L. et al. Green ear yield and grain yield of maize cultivars in competition with weeds. Planta Daninha, v. 28, p. 77-85, 2010.

SILVA, P. S. L. et al. Number and time of weeding effects on maize grain yield. Revista Brasileira de Corn and Sorgo, v. 3, p. 204-213, 2004.

SILVA, P. S. L. et al. Variation on maize green ears yield in response to weed competition. Revista Brasileira de Milho e Sorgo, v. 6, p. 74-83, 2007.

WORTHINGTON, M.; REBERG-HORTON, C. Breeding cereal crops for enhanced weed supression: optimizing allelopathy and competitive ability. Journal of Chemical Ecology, v. 39, p. 213-231, 2013.

ZÁRATE, N. A. H. et al. Produção e renda líquida de milho verde em função da época de amontoa. Semina: Ciências Agrárias, v. 30, p. 95-100, 2009.




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