Irrigation With Saline Water and Nitrogen in Production Components and Yield of Sunflower

Santos, João Batista dos; Filho, Doroteu Honório Guedes; Gheyi, Hans Raj; Lima, Geovani Soares de; Cavalcante, Lourival Ferreira

doi:10.1590/1983-21252016v29n419rc

Cited by 5 publications

(6 citation statements)

References 17 publications

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“…The increases in the masses of one thousand achenes can be attributed to the functions of N in the metabolism of the reserve compounds in the seeds. The obtained results corroborate those of Santos et al (2016), who studied the effect of N fertilization on sunflower production using the BRS 122 cultivar and reported a mass gain of 8.45% for each 20 kg ha -1 of N applied. At the same time, Lobo, Grassi Filho and Coelho (2012) and Ahmad et al (2018) obtained nitrogen fertilization results for the H251 hybrid and reported an increase of 23.8% for doses of 50 to 300 kg ha -1 of N for the mass of 1000 achenes.…”

Section: Resultssupporting

confidence: 88%

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Production of Sunflower Oil in Response to Nitrogen Fertilization under Semiarid Conditions under Irrigation

Souza¹,

Tartaglia

Santos

et al. 2021

IJANR

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Sunflower is one of the most important oilseeds in the world, whose achenes are valued in several industrial chains, mainly for the extraction and processing of its oil. Although there is some information in the literature, the nitrogen (N) requirements for sunflower in semiarid conditions under irrigation are not yet clear. The experimental design used randomized blocks, with treatments in subdivided plots with four replications during two agricultural seasons. The N doses (e.g., 0, 30, 60, 90 and 120 kg ha-1) were assigned to the plots, and to the four sunflower cultivars used (e.g., Aguará 06, Altis 99, Multissol and BRS 122), which were planted in the subplots. The N doses for the maximum achene yields for the Multissol and BRS 122 cultivars were 81.8 and 86.6 kg ha-1, respectively, while N doses of 120 kg ha-1 produced the maximum achene yields for the Altis 99 and Aguará 06 cultivars in the 2016 crop season. In 2017, the Multissol and BRS 122 cultivars were given N doses of 100.7 and 92.8 kg ha-1, respectively, and the Altis 99 and Aguará 06 cultivars were each given an N dose of 120 kg ha-1 of N. The fertirrigated doses of maximum economic efficiency of N were 60 and 70 kg ha-1 for the Multissol and BRS 122 cultivars, respectively. For the oil yields, the maximum N doses of 78.0 and 86.7 kg ha-1 for the BRS 122 and Aguará 06 cultivars and for the Multissol and Altis 99 cultivars at an N dose of 120 kg ha-1 were used for the 2016 harvest. In 2017, the BRS 122 and Multissol cultivars received N doses of 88.6 and 99.1 kg ha-1, respectively, and the Altis 99 and Aguará 06 cultivars received N doses of 120 kg ha-1. The use of fertigation allowed greater efficiency for the N doses in the sunflower cultivars in the semiarid region.

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Section: Resultssupporting

confidence: 88%

“…The research data recommend doses above 80 kg ha -1 of N for the most productive sunflower cultivars under semiarid irrigated conditions (Oliveira et al, 2012;Vasconcelos et al, 2015;Santos et al, 2016).…”

Section: Resultsmentioning

confidence: 94%

Production of Sunflower Oil in Response to Nitrogen Fertilization under Semiarid Conditions under Irrigation

Souza¹,

Tartaglia

Santos

et al. 2021

IJANR

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“…Among these, we can highlight the studies carried out with jackfruit (Artocarpus heterophyllus L. -Oliveira et al, 2017;Oliveira et al, 2018), cotton (Gossypium hirsutum L. -Chen et., 2010), sugar cane (Saccharum sp. -Nadian et al, 2012), maize (Zea mays L. -Akram et al, 2011), wheat (Triticum aestivum L. -Elgharably et al, 2010) and sunflower (Helianthus annuus L. -Santos et al, 2016). Therefore, the aim of this study was to evaluate the ecophysiological responses of Annona squamosa L. submitted to different salinity levels and nitrogen doses.…”

Section: Introductionmentioning

confidence: 99%

Gas exchanges in sugar apple (Annona squamosa L.) subjected to salinity stress and nitrogen fertilization

et al. 2019

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Salinity is one of the modern agriculture major obstacles, causing several physiological disturbances in plants, adversely affecting its growth and development. Therefore, some techniques are required in order to alleviate the negative effects of salinity stress on plants, as for example an adequate nitrogen fertilization. The aim of this study was to assess the ecophysiological responses of sugar apple plants (Annona squamosa L.) submitted to different salinity levels and nitrogen fertilization doses. The experimental design was a randomized block in an incomplete factorial scheme, with five electrical conductivities of the irrigation water (ECw: 0.5, 1.01, 2.25, 3.49 and 4.0 dS m-1) and five nitrogen doses (0, 101, 350, 598.2 and 700 mg dm-3), with four replicates, generated from the Box Central Composite experimental design matrix. Through a daily course, it was observed variations in gas exchange, chlorophyll content and fluorescence parameters. The gas exchange, chlorophyll content and fluorescence parameters were measured on photosynthetically active leaves. There was significant interaction between the salinity levels (ECw) and nitrogen doses for the chlorophyll indexes. The electrical conductivity of the irrigation water caused significant negative effects on chlorophyll fluorescence. Therefore, it can be stated that the sugar apple plants ecophysiology varies through the day and that salinity affects its chlorophyll content and fluorescence.

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“…Em outra pesquisa Santos et al (2016d) avaliando os componentes de produção e rendimento do girassol, cv.…”

Section: Simões Et Al (unclassified

Salinização secundária no semiárido e seus impactos no solo, na agricultura e cultivo das plantas – uma revisão

Filho

Bonilla

2022

RSD

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A salinização do solo pode ocorrer de forma antropogênica ou secundária ou como resultado de processos naturais a exemplo da intemperização dos minerais ou até mesmo pelo aumento da capilaridade das águas subterrâneas mais salinas em regiões com lençol freático mais baixo. Entre as fontes antropogênicas de salinização do solo se destacam atividades industriais como a exploração de petróleo, a mineração e destacando-se ainda as práticas agrícolas não sustentáveis. A implantação de sistemas de irrigação no semiárido muitas vezes promovem mudanças que resultam no acúmulo de sais na superfície do solo, ascensão do lençol freático e contaminação dos recursos hídricos impactando a dinâmica ambiental daquele local. Diante disso esta revisão de literatura teve como objetivo abordar os principais impactos relacionados com a salinização secundária e seus efeitos nas propriedades do solo, analisando-se ainda o cultivo em condições salinas de culturas de importância agrícola e seus impactos sobre o desenvolvimento das plantas. Esse trabalho foi direcionado por um levantamento bibliográfico que agrupou temas importantes sobre salinização secundária do solo e o cultivo de culturas resistentes a esse tipo de ambiente. Com base nos resultados obtidos nessa revisão, conclui-se que a irrigação com água de baixa qualidade tem se apresentado como alternativa para a produção agrícola, principalmente para culturas que tem se mostrado resistentes a solos salinizados e que pode representar uma importante alternativa para regiões com escassez de água.

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Irrigation With Saline Water and Nitrogen in Production Components and Yield of Sunflower

Cited by 5 publications

References 17 publications

Production of Sunflower Oil in Response to Nitrogen Fertilization under Semiarid Conditions under Irrigation

Production of Sunflower Oil in Response to Nitrogen Fertilization under Semiarid Conditions under Irrigation

Gas exchanges in sugar apple (Annona squamosa L.) subjected to salinity stress and nitrogen fertilization

Salinização secundária no semiárido e seus impactos no solo, na agricultura e cultivo das plantas – uma revisão

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