Growth and yield of cowpea/sunflower crop rotation under different irrigationm anagement strategies with saline water

Neves, Antônia Leila Rocha; Lacerda, Claudivan Feitosa de; Sousa, Carlos Henrique Carvalho de; Silva, Francisco Leandro Barbosa da; Gheyi, Hans Raj; Ferreira, F.J.; Filho, F.L. Andrade

doi:10.1590/0103-8478cr20131657

Cited by 13 publications

(10 citation statements)

References 17 publications

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“…The only exception was the rainy water scenario, in which the highest mean yield was obtained in the first cycle, which differed from the other treatments. On the other hand, supplemental irrigation in the first year did not cause yield losses in the second year of cultivation, indicating that the salts accumulated in the soil were leached by seasonal rains, a result that is consistent with those obtained in other studies in sub-humid and semi-arid regions (Ayers and Westcot, 1985;Beltrán, 1999;Barbosa et al, 2012;Neves et al, 2015;Terceiro Neto et al, 2013).…”

Section: Maize Yieldsupporting

confidence: 90%

“…Continuous use of brackish waters in irrigation causes accumulation of salts in the soil (Beltrán, 1999;Pessoa et al, 2019), resulting in the inhibition of physiological processes and reduction in maize yield (Barbosa et al, 2012;Muuns and Tester, 2008). However, studies conducted on certain annual crops have shown that irrigation with saline water for short periods does not cause significant damage to yield and the negative impacts on soil are minimal (Barbosa et al, 2012;Kang et al, 2010;Murtaza et al, 2006;Neves et al, 2015;Terceiro Neto et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Supplemental irrigation using brackish water on maize in tropical semi-arid regions of Brazil: yield and economic analysis

Cavalcante

Lacerda

Costa

et al. 2021

Sci. agric. (Piracicaba, Braz.)

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Supplemental irrigation during dry spells could reduce maize yield losses in tropical semi-arid regions, notably in small farms. However, good quality water reserves are not sufficient to meet the demands of farming communities. Consequently, our objective was to evaluate the productivity and profitability of maize under different simulated rainfall scenarios, with and without supplemental irrigation (SI) with brackish water. The field experiments were carried out during the cropping seasons of 2018 and 2019 on Ultisol. The experiment followed a randomized block design in the split-plot scheme with four replicates. The plots were formed by simulating the water supply in the soil corresponding to four water scenarios (rainy, normal, drought and severe drought), and the sub-plots with or without SI with brackish water (Electrical conductivity of 4.5 dS m -1 ). Mean yields of green maize ears were 13,083, 11,532, 10,358 and 9,609 kg ha -1 for rainy, normal, drought and severe drought scenarios, as supplemented with brackish water. For the same treatments without SI the values were 11,394, 7,896, 3,913 and 1,374 kg ha -1 , respectively. Data on farmer's income showed that under normal, drought and severe drought supplementation with brackish water becomes economically advantageous from 0.9, 1.0 and 2.4 ha, respectively, while maize cultivation without SI is not advantageous under the last two scenarios. For severe drought conditions, however, SI using brackish water reduced commercial yield by 27 % with negative effects on the farmers' profitability. In this case, it is necessary to use water with either lower salinity or select salt tolerant crops.

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Section: Maize Yieldsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Supplemental irrigation using brackish water on maize in tropical semi-arid regions of Brazil: yield and economic analysis

Cavalcante

Lacerda

Costa

et al. 2021

Sci. agric. (Piracicaba, Braz.)

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“…Portanto, mesmo com a presença de compostos orgânicos no solo, houve aumento da salinidade do extrato de saturação, provavelmente, devido a fração de lixiviação aplicada ser insuficiente para promover a lavagem dos sais do solo neste experimento, resultado semelhante ao encontrado por Neves et al (2015). Science, v.16, n.3, p.261-270, 2013. …”

Section: Tabelaunclassified

Crescimento Do Sorgo Em Função Da Irrigação Com Água Salobra E Aplicação De Compostos Orgânicos

Sousa¹,

Lacerda²,

Neves³

et al. 2018

RBAI

Self Cite

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RESUMOConsiderado como uma alternativa para o uso da água salina, na região do semiárido brasileiro, a aplicação de compostos orgânicos gera resultados discrepantes tanto nas plantas quanto no solo. Portanto, o objetivo desse trabalho foi avaliar os efeitos da salinidade da água de irrigação e tipos de compostos orgânicos, sobre o desenvolvimento de plantas de sorgo [Sorghum bicolor (L.) Moench.] cv. BRS Ponta Negra. As plantas foram cultivadas em vasos contendo 23 kg de solo arenoso, em casa de vegetação. Os níveis de salinidade foram 0,2; 2,0; 4,0; e 6,0 dS m -1 . Os compostos orgânicos foram o esterco bovino curtido e biofertilizante Ative®, além do tratamento sem aplicação desses produtos. O delineamento experimental foi inteiramente casualizado com cinco repetições, em esquema fatorial 4 x 3. Foram avaliadas as seguintes variáveis: matéria seca total; diâmetro do colmo; altura das plantas; área foliar total; suculência foliar. A salinidade da água de irrigação influenciou negativamente as variáveis avaliadas. O tratamento com esterco bovino foi estatisticamente superior aos demais, mesmo com o aumento da salinidade da água de irrigação, em todas as variáveis analisadas.Palavras-chave: Sorghum bicolor, estresse salino, esterco bovino, biofertilizante.

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“…The success of rotation systems for weed suppression appears to base on the use of crop sequences that create varying patterns of resource competition, allelopathic interference, soil disturbance, and mechanical damage to provide an unstable and frequently inhospitable environment that prevents the proliferation of a particular weed species (Liebman & Dyck, 1993). Cowpea can be rotated with a variety of crops including but not limited to corn, pearl millet, sorghum, cassava and sunflower (Horst & Hardter, 1992;Subbarao et al, 2000;Neves et al, 2015).…”

Section: Cultural Weed Controlmentioning

confidence: 99%

Weed Interference and Control in Cowpea Production: A Review

Osipitan¹

2017

JAS

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In spite of the great economic potential of cowpea as both domestic and commercial crop, a number of constraints, which include insect pests, diseases and weeds, limits its production in West and many parts of Africa. Weeds reduced cowpea yield and value by competing for light, water and nutrients. Cowpea suffers from weeds particularly when the crop is in the early growth stages before ground cover. Yield losses cause by weeds alone in cowpea production can be as high as 76% depending on the cowpea cultivar, environment and weed management practices. A timely weed removal at the critical period, which falls within the first 40 days of cowpea growth, would help to prevent an unacceptable yield. Weed management in cowpea has been with low technology. Hand weeding is the most widely used weed control method in cowpea but they are usually expensive and labour intensive. Cultural practices such as narrow row spacing and planting of early maturing varieties are also used for weed control in cowpea. Herbicides, which are relatively easy to use and less expensive, have not been widely adopted for weed control in cowpea. There are limited number of selective herbicides with wide spectrum for weed control in cowpea. However, an integrated practices that involved pre-emergence weed control using herbicides or physical weeding, and a supplementary weed removal that would ensure weed control up to 40 days after cowpea emergence could substantially prevent yield losses associated with weed interference.

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Growth and yield of cowpea/sunflower crop rotation under different irrigationm anagement strategies with saline water

Abstract: This study aimed to evaluate the effect of management strategies of irrigation with saline water on growth and yield of cowpea and sunflower in a crop rotation. The experiment was conducted in randomized blocks

Cited by 13 publications

References 17 publications

Supplemental irrigation using brackish water on maize in tropical semi-arid regions of Brazil: yield and economic analysis

Supplemental irrigation using brackish water on maize in tropical semi-arid regions of Brazil: yield and economic analysis

Crescimento Do Sorgo Em Função Da Irrigação Com Água Salobra E Aplicação De Compostos Orgânicos

Weed Interference and Control in Cowpea Production: A Review

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