Épocas de semeadura de girassol safrinha após milho, em plantio direto no cerrado tocantinense

Capone, Aristoteles; Barros, Hélio Bandeira; Santos, Elonha Rodrigues dos; Santos, Adão Felipe dos; Ferraz, Emerson Castro; Fidélis, Rodrigo Ribeiro

doi:10.5039/agraria.v6i3a1151

Cited by 6 publications

(7 citation statements)

References 8 publications

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“…The use of ID 2 increased the 1000 AW of plants treated with DW 2 (84.8 g) and DW 3 (75.3 g) in 35.02%, on average, when compared to those of plants treated with DW 1 and PW 4 . The 1000AW found were similar to those found by Aquino et al (2013), who evaluated the same sunflower cultivar and found 1000AW of 86 g. In addition, Capone et al (2011) and Pivetta et al (2012) found 1000AW of 29.25 to 46.86 g in non-irrigated crops.…”

Section: Resultssupporting

confidence: 84%

Production components of sunflower plants irrigated with treated domestic wastewater and drinking water in semiarid region

et al. 2019

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This study aimed to evaluate production components of sunflower (Helianthus annuus L.) plants irrigated with domestic wastewaters treated by different processes, with two irrigation depths. The experiment was carried out in Ibimirim, state of Pernambuco, Brazil, using a randomized block design in a 4×2 factorial arrangement, with four replications. The treatments consisted of four irrigation water types (domestic wastewater treated by UASB reactor - DW1; domestic wastewater treated by digestion decanter and anaerobic filtration - DW2; domestic wastewater treated by anaerobic filtration - DW3; and public water - PW4) and two irrigation depths (equal to the crop evapotranspiration - ID1; and 20% higher than the crop evapotranspiration - ID2). The production components-plant fresh and dry weights, 1000-achene weight, capitulum internal diameter, achene yield, oil content, and oil yield-were evaluated at the end of the crop cycle. The irrigation with treated domestic wastewater improved all variables analyzed when compared to the drinking water, especially when using DW2 and DW3 with ID1.

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Section: Resultssupporting

confidence: 84%

Production components of sunflower plants irrigated with treated domestic wastewater and drinking water in semiarid region

et al. 2019

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“…However, the rainfall distribution was irregular, especially during the crop's early development, which affected its establishment and development. The results obtained for the March sowing were similar to the ones reported by Tomich et al (2003) for interim harvest conditions and were higher than reported by Capone et al (2011) for sunflower sowing on March 15 th in the Cerrado in Tocantins.…”

Section: Sunflower Cultivationsupporting

confidence: 73%

Intercropping of sunflower with Brachiaria brizantha cultivars during two sowing seasons in the interim harvest

Cruvinel

Costa

Silva

et al. 2017

SCA

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Intercropping of annual crops with tropical forages is an effective cultivation method to maximize grain production and pasture formation. The objective of this study was to evaluate the agronomic characteristics of sunflower and the productive and nutritional characteristics of Brachiaria brizantha cultivars grown with intercropping during two different sowing seasons in the interim harvest of the Center-West region of Brazil. The experiment was conducted in the municipality of Rio Verde, Goiás (GO), using a randomized block design with a 3x2+4 factorial scheme and three replicates per treatment. The following factors were tested: three Brachiaria brizantha cultivars (Marandu palisadegrass, Piata palisadegrass and Xaraes palisadegrass) grown with intercropping in the inter-row with the sunflower cultivar Charrua in two different sowing seasons (February and March); four additional treatments of sunflower; and the three tested Brachiaria brizantha cultivars grown in monoculture. Intercropping of sunflower with the Xaraes palisadegrass cultivar negatively affected the agronomic characteristics of sunflower, and intercropping with Marandu palisadegrass and Piata palisadegrass cultivars is recommended. Preference should be given to the Xaraes palisadegrass cultivar for forage production and to the Piata palisadegrass cultivar for the production of forage with higher nutritional value. Sowing in March led to the best sunflower agronomic characteristics, without affecting the productive and nutritional characteristics of the forages. Intercropping of sunflower with Brachiaria brizantha cultivars is therefore a promising cultivation method for the production of achenes and forage during the interharvest in the Center-West region of Brazil. Key words: Helianthus annuus L. integrated crop-livestock systems. ResumoO consórcio de culturas anuais e forrageiras tropicais na mesma área tem-se mostrado como técnica de cultivo eficaz para maximizar a produção de grãos e formação de pastagens. Neste contexto, objetivou-se avaliar as características agronômicas do girassol, bem como as características produtivas e nutricionais de cultivares de Brachiaria brizantha consorciado com o girassol em duas épocas de semeadura, na safrinha na região Centro-Oeste. O experimento foi conduzido no município de Rio Verde-GO no delineamento experimental em blocos ao acaso com três repetições em esquema fatorial 3x2+4, sendo três cultivares de Brachiaria brizantha (Marandu; Piatã e Xaraés) consorciadas na entrelinha com o cultivar de girassol Charrua em duas épocas de semeadura (fevereiro e março), além de quatro tratamentos adicionais referentes aos monocultivos do girassol e dos três cultivares de Brachiaria brizantha. Os resultados permitiram constatar que o consórcio do girassol com o capim-xaraés afeta negativamente as características agronômicas do girassol, sendo mais recomendando o consórcio com os capins marandu e piatã. Quando se objetiva a produção de forragem, deve-se dar preferência para o uso do capim-xaraés, e para obtenç...

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“…Another key factor for sunflower cultivation in the offseason is the choice of achene for oil production, which has a higher market value than soybean oil for human nutrition and decreases the idleness of beneficiary industries, thus optimizing the use of land, machinery and manpower (CAPONE et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Production and nutritional characteristics of sunflowers and paiaguas palisadegrass under different forage systems in the off season

Santos¹,

Costa²,

Oliveira³

et al. 2016

Biosci. J.

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ABSTRACT:The high efficiency of sunflowers in extracting water from the soil under water stress conditions is a factor that promotes sunflower cultivation in the offseason. Therefore, sunflowers have been intercropped with grasses of the Urochloa genus in crop-livestock integration systems. However, little is known of sowing methods for intercropping; thus, the present study aimed to assess sunflower agronomic traits and the production and nutritional characteristics of Paiaguas palisadegrass under different forage systems in the offseason in the midwest region of Brazil. The experiment was conducted at the Federal Institute of Goiás (Instituto Federal Goiano), Rio Verde Campus in a randomized block experimental design with four replicates. The treatments consisted of the following forage systems: sunflower monocropped; Paiaguas palisadegrass monocropped; sunflower rows intercropped with Paiaguas palisadegrass; sunflower inter-row intercropped with Paiaguas palisadegrass; and sunflower oversown and intercropped with Paiaguas palisadegrass. The results show that the sunflower rows intercropped with Paiaguas palisadegrass negatively affect the agronomic traits of sunflower; thus, inter-row sowing and oversowing are recommended. Sowing Paiaguas palisadegrass with oversown sunflower for forage production is hampered by intercropping and shows low forage production. In turn, the intercropped sowing method had no effect on the nutritional characteristics of the produced forage. Intercropping sunflowers with Paiaguas palisadegrass in the offseason has the potential to provide a promising cropping method for the production of achenes and after harvest enables the availability of forage with good nutritional value for use in the offseason in the midwest region of Brazil.

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Épocas de semeadura de girassol safrinha após milho, em plantio direto no cerrado tocantinense

Cited by 6 publications

References 8 publications

Production components of sunflower plants irrigated with treated domestic wastewater and drinking water in semiarid region

Production components of sunflower plants irrigated with treated domestic wastewater and drinking water in semiarid region

Intercropping of sunflower with Brachiaria brizantha cultivars during two sowing seasons in the interim harvest

Production and nutritional characteristics of sunflowers and paiaguas palisadegrass under different forage systems in the off season

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