Sunflower fertigated with potassium fertilization in two agricultural seasons in the Brazilian semiarid region

被引：0
|
作者：
dos Santos, Allysson Pereira [1 ]
Tartaglia, Francilene de Lima [2 ]
Evangelista de Souza, Almir Rogerio [2 ]
dos Santos, Manoel Galdino [1 ]
da Silveira, Lindomar Maria [1 ]
Barros Junior, Aurelio Paes [1 ]
机构：
[1] Univ Fed Rural SemiArido UFERSA, Programa Posgrad Fitotecnia, Dept Ciencias Agron & Florestais, Ctr Ciencias Agr, Mossoro, RN, Brazil
[2] Inst Fed Educ Ciencia & Tecnol Alagoas, Campus Piranhas, Piranhas, AL, Brazil
来源：
REVISTA CIENCIA AGRONOMICA | 2020年 / 51卷 / 02期
关键词：
Helianthus annuus L; Potassium doses; Plant nutrition; Yield; Oilseed crop; OIL; HYBRIDS;
D O I：
10.5935/1806-6690.20200023
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
The objective of this study was to evaluate the effect of potassium doses on the production components of sunflower cultivars grown in the semiarid climate region. The experiment was carried out in two agricultural seasons, in 2016 and 2017, at the Rafael Fernandes Experimental Farm, Mossora, RN, Brazil. The experimental design used was randomized blocks, in split plots, with four replicates. Five potassium doses were evaluated in the plots: 0, 30, 60, 90 and 120 kg ha(-1) of K2O, and four sunflower cultivars were evaluated in the subplots: Aguara 6, Altis 99, Multissol and BRS 122. The evaluated characteristics were: K content in the diagnostic leaf (KDL), thousand-achene weight (TAW), achene yield (AY), oil content (OC) and oil yield (OY). Potassium doses directly influenced agronomic variables, promoting better performance. The best K2O doses for sunflower yield were 77.7 and 80.2 kg ha(-1) in the first season for the cultivars Altis 99 and Aguara 6, and 65.9 and 69.5 kg ha(-1) in the second season for Altis 99 and Aguara 6. In the first season, the production results were higher than in the second, and the cultivars Aguara 6 and Altis 99 obtained the highest achene yield and oil yield in both agricultural seasons.
引用
收藏
页码：1 / 9
页数：9
相关论文
共 25 条
  • [21] Soil properties and microclimate of two predominant landscapes in the Brazilian semiarid region: Comparison between a seasonally dry tropical forest and a deforested area
    da Silva, Thieres George Freire
    de Queiroz, Maria Gabriela
    Zolnier, Sérgio
    de Souza, Luciana Sandra Bastos
    de Souza, Carlos André Alves
    de Moura, Magna Soelma Beserra
    de Araújo, Gherman Garcia Leal
    Steidle Neto, Antonio José
    dos Santos, Thalyta Soares
    de Melo, André Laurênio
    da Cruz Neto, José Francisco
    da Silva, Marcelo José
    Alves, Hygor Kristoph Muniz Nunes
    Soil and Tillage Research, 2021, 207
  • [22] Soil properties and microclimate of two predominant landscapes in the Brazilian semiarid region: Comparison between a seasonally dry tropical forest and a deforested area
    Freire da Silva, Thieres George
    de Queiroz, Maria Gabriela
    Zolnier, Sergio
    Bastos de Souza, Luciana Sandra
    Alves de Souza, Carlos Andre
    Beserra de Moura, Magna Soelma
    Leal de Araujo, Gherman Garcia
    Steidle Neto, Antonio Jose
    dos Santos, Thalyta Soares
    de Melo, Andre Laurenio
    da Cruz Neto, Jose Francisco
    da Silva, Marcelo Jose
    Muniz Nunes Alves, Hygor Kristoph
    SOIL & TILLAGE RESEARCH, 2021, 207
  • [23] Spatiotemporal patterns of agricultural and meteorological droughts using SPI and MODIS-based estimates over a Brazilian semiarid region: study case of Upper Paraiba River basin
    de Oliveira, Nadja Melo
    da Silva, Richarde Marques
    Brasil Neto, Reginaldo Moura
    Guimaraes Santos, Celso Augusto
    Guedes Vianna, Pedro Costa
    GEOCARTO INTERNATIONAL, 2022, 37 (26) : 11590 - 11613
  • [24] Long-term basin-scale comparison of two high-resolution satellite-based remote sensing datasets for assessing rainfall and erosivity in a basin in the Brazilian semiarid region
    de Brito, Celia Soares
    da Silva, Richarde Marques
    Guimaraes Santos, Celso Augusto
    Brasil Neto, Reginaldo Moura
    Rabelo Coelho, Victor Hugo
    THEORETICAL AND APPLIED CLIMATOLOGY, 2022, 147 (3-4) : 1049 - 1064
  • [25] Long-term basin-scale comparison of two high-resolution satellite-based remote sensing datasets for assessing rainfall and erosivity in a basin in the Brazilian semiarid region
    Célia Soares de Brito
    Richarde Marques da Silva
    Celso Augusto Guimarães Santos
    Reginaldo Moura Brasil Neto
    Victor Hugo Rabelo Coelho
    Theoretical and Applied Climatology, 2022, 147 : 1049 - 1064
123