Resposta Do Algodoeiro À Supressão Hídrica Em Diferentes Fases Fenológicas No Semiárido Brasileiro

Maniçoba, Rudah Marques; Sobrinho, José Espínola; Zonta, J. H.; Cavalcante, Edmilson Gomes; Oliveira, Anna Kézia Soares de; Freitas, Isaac Alves da Silva

doi:10.15809/irriga.2021v26n1p123-133

Cited by 6 publications

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“…Freitas et al (2021) obtained similar results when assessing the responses of peanut cultures grown in a greenhouse under different levels of salinity. Similarly, Pereira-Filho et al (2017) also found a reduction in the height of cowpea plants under salt stress.…”

supporting

confidence: 52%

“…Furthermore, DF, degrees of freedom; CV, coefficient of variation; *, significant by the F test at p ≤ 0.05; ** Significant by the F test at p ≤ 0.01; ns, not significant Table 4. Summary of the analysis of variance for the effects of electrical conductivity of irrigation water and different types of fertilization on plant height (PH), number of leaves (NL), and stem diameter (SD) of peanut plants subjected to irrigation (1) leaves in a saline medium is one of the adaptations that plants use to regulate water absorption, which is associated with other morphological and anatomical changes and decreased transpiration (Freitas et al, 2021).…”

Section: Resultsmentioning

confidence: 99%

“…Melo Filho et al ( 2016) evaluated the growth of peanuts irrigated with saline water and bovine biofertilizer and observed negative effects with increased EC w , with a decrease in the relative SD in plants that did not receive bovine biofertilizer. Freitas et al (2021) analyzed the effects of irrigation water salinity on cultivar BR-1 peanuts, and found a greater peanut SD in plants grown in soil with mineral fertilizer and a K source than in plants grown without fertilizer.…”

Section: Resultsmentioning

confidence: 99%

“…Irrigation is the only way to guarantee agricultural production, especially in tropical regions with a hot dry climate, such as semi-arid regions of Northeast Brazil. These regions face several problems owing to water scarcity for plants at different phenological stages (Maniçoba et al, 2021). This problem is associated with the high water consumption of irrigation and has encouraged the use of lower quality resources, such as saline water, which is responsible for the decline in crop productivity worldwide (Costa & Medeiros, 2017;Silva et al, 2019;Bouras et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Growth and nutrition of peanut crop subjected to saline stress and organomineral fertilization

Silva

Viana

Sousa

et al. 2022

Rev. bras. eng. agríc. ambient.

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The peanut crop, owing to its microbiological and nutritional aspects, is of great economic importance for agriculture and the food industry. However, salt stress can negatively affect nutrient uptake and plant growth. The objective of this study was to evaluate the growth and foliar nutrient concentrations of peanut plants subjected to irrigation with saline water and different forms of organomineral fertilization. The experiment was conducted in a greenhouse in a completely randomized design (5 × 2 factorial scheme) with five forms of fertilization (F1 = 100% mineral; F2 = 100% bovine biofertilizer; F3 = 100% vegetal ash; F4 = 50% mineral + 50% bovine biofertilizer; and F5 = 50% mineral + 50% vegetal ash), two levels of electrical conductivity of the irrigation water (ECw) (1.0 and 5.0 dS m-1), and five replicates. Salt stress inhibited plant growth and the number of leaves, but increased the average stem diameter with the use of 100% bovine biofertilizer and higher salinity water. When ECw of 5.0 dS m-1 was used along with the bovine biofertilizer (100%), the P concentration in plants increased. The K concentration was reduced in plants fertilized with bovine biofertilizer (100%) and vegetal ash (100%), while Mg concertation was reduced in plants fertilized with bovine biofertilizer (100%) or mineral fertilizer (50%) + bovine biofertilizer (50%) with irrigation water of 5.0 dS m-1.

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supporting

confidence: 52%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Growth and nutrition of peanut crop subjected to saline stress and organomineral fertilization

Silva

Viana

Sousa

et al. 2022

Rev. bras. eng. agríc. ambient.

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“…No Brasil, o semiárido ocupa uma vasta área, entre 750.000 a 850.000km 2 , equivalente a 48% da área total da região Nordeste e corresponde a 10% do território nacional, com abrangência de nove estados nordestinos e parte de Minas Gerais (Silva et al, 2014;IBGE, 2019). Estas áreas têm sido caracterizadas pela ocorrência de chuvas inconsistentes de períodos curtos e elevada evapotranspiração (Maniçoba et al, 2021). A caatinga é a principal formação vegetal existente nesta região, sendo considerada um ecossistema único por sua heterogeneidade (Pereira Júnior et al, 2014), apresentando ampla diversidade de espécies nativas e exóticas.…”

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Palma forrageira: Adubação orgânica e mineral

Pessoa

Pessoa²,

Costa³

et al. 2022

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As regiões semiáridas são caracterizadas pela baixa precipitação que afeta diretamente a disponibilidade de alimentos para a produção animal. O cultivo de espécies forrageiras que melhor adaptam-se a estas condições é essencial para evitar perdas produtivas, sendo a palma forrageira uma alternativa importante de alimento. Se manejada corretamente, com o uso de adubação, podemos obter alta produtividade da palma forrageira. Assim, está revisão tem como objetivo avaliar a produção da palma forrageira com o uso de fertilizantes orgânico e mineral para cultivo no semiárido. A pesquisa foi desenvolvida por meio de uma revisão bibliográfica de natureza qualitativa. A palma forrageira é importante alternativa para o cultivo e alimentação animal em condições semiáridas, devido a sua adaptação à seca, produtividade e valor nutricional. Apresenta, além do potencial forrageiro, potencialidade na indústria de alimentos, medicamento e cosméticos. Como qualquer outra cultura, a palma necessita de adubação para alcançar alta produtividade, por apresentar elevado potencial de produção de fitomassa, a adubação pode ser orgânica e/ou mineral.

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Frequencies of irrigation in millet crop under salt stress

Costa,

Sousa,

Lima

et al. 2024

Rev. bras. eng. agríc. ambient.

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The semi-arid region faces problems related to water deficit and the presence of brackish water that compromise crop performance. Therefore, irrigation frequency can enhance the growth of agricultural crops of interest even under salt stress conditions. In this context, the objective of the present study was to evaluate different irrigation frequencies with water of higher and lower salinity on the agronomic performance of millet. The experiment was conducted from September to November 2020, in the experimental area of the Auroras Seedling Production Unit, belonging to the Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Redenção, Ceará, Brazil. The experimental design used was completely randomized in a 4 × 2 factorial arrangement, with five repetitions. The first factor corresponded to four irrigation frequencies (F1 - daily irrigation; F2 - irrigation every two days; F3 - irrigation every three days; F4 - irrigation every four days) and the second factor consisted of two levels of electrical conductivity of irrigation water (0.3 and 5.0 dS m-1). Salt stress (5.0 dS m-1) negatively affected leaf area, plant height, stalk diameter, panicle length, and leaf, stem, panicle, and total dry mass of millet, under daily and four-day irrigation frequencies. Increasing the interval in irrigation frequency to beyond two days negatively affects the agronomic performance of millet crop, regardless of the electrical conductivity of water used (0.3 or 5.0 dS m-1). Under salt stress conditions, adopting irrigation frequencies between two and three days can be a viable alternative for irrigation management in pearl millet crop.

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Resposta Do Algodoeiro À Supressão Hídrica Em Diferentes Fases Fenológicas No Semiárido Brasileiro

Cited by 6 publications

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Growth and nutrition of peanut crop subjected to saline stress and organomineral fertilization

Growth and nutrition of peanut crop subjected to saline stress and organomineral fertilization

Palma forrageira: Adubação orgânica e mineral

Frequencies of irrigation in millet crop under salt stress

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