Production and water use efficiency of peanut under salt stress and soil cover

Canjá, Juvenaldo Florentino; Sales, Jonnathan Richeds da Silva; Pinho, Luciana Luzia; Sousa, Naara Iorrana Gomes; Lacerda, Claudivan Feitosa de; Sousa, Geocleber Gomes de

doi:10.5935/1806-6690.20210040

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…By suppressing evaporation, the enhanced soil moisture under SHS mulches likely played a key role in attenuating the effects of salt stress by transporting salts away from the root region via percolation/capillarity, as evidenced by the 39–60% lower sodium concentration in the topsoil ( p < 0.05, Table S2). Similar effects of mulches in attenuating salt stress have been reported in other studies. − However, it should be noted that repeated brackish water irrigation would add to cumulative levels of soil salinity.…”

Section: Discussionsupporting

confidence: 76%

Nature-Inspired Superhydrophobic Sand Mulches Increase Agricultural Productivity and Water-Use Efficiency in Arid Regions

Gallo

Odokonyero

Mousa

et al. 2022

ACS Agric. Sci. Technol.

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Excessive evaporative loss of water from the topsoil in arid-land agriculture is compensated via irrigation, which exploits massive freshwater resources. The cumulative effects of decades of unsustainable freshwater consumption in many arid regions are now threatening food-water security. While plastic mulches can reduce evaporation from the topsoil, their cost and nonbiodegradability limit their utility. In response, we report on superhydrophobic sand (SHS), a bio-inspired enhancement of common sand with a nanoscale wax coating. When SHS was applied as a 5 mm-thick mulch over the soil, evaporation dramatically reduced and crop yields increased. Multi-year field trials of SHS application with tomato (Solanum lycopersicum), barley (Hordeum vulgare), and wheat (Triticum aestivum) under normal irrigation enhanced yields by 17%-73%. Under brackish water irrigation (5500 ppm NaCl), SHS mulching produced 53%-208% higher fruit yield and grain gains for tomato and barley. Thus, SHS could benefit agriculture and city-greening in arid regions.

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Section: Discussionsupporting

confidence: 76%

Nature-Inspired Superhydrophobic Sand Mulches Increase Agricultural Productivity and Water-Use Efficiency in Arid Regions

Gallo

Odokonyero

Mousa

et al. 2022

ACS Agric. Sci. Technol.

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Salt stress and potassium fertilization on the agronomic performance of peanut crop

Abreu,

Viana,

Sousa

et al. 2024

Rev. Caatinga

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In semi-arid regions, the use of brackish water for irrigation can reduce crop yields. However, the use of mineral fertilizer has been tested to mitigate salt stress. In this context, the objective was to evaluate the effect of salt stress at different phenological stages on the yield of peanut under potassium fertilization. The experiment was carried out from August to November 2021, in the experimental area of the Universidade da Integração da Lusofonia Afro-Brasileira (UNILAB), Redenção, Ceará, Brazil. The experimental design was completely randomized (CRD), in a 6 × 3 factorial scheme, with 6 replicates. Six strategies of irrigation with brackish water were applied from the following stages: vegetative (S1); flowering (S2); gynophore appearance (S3); pod formation (S4); fruiting (S5) and without salt stress (S6), and three doses of potassium: 0, 50 and 100% of the recommended dose. The use of brackish water in the vegetative stage led to lower pod length, pod mass, number of pods, number of marketable pods and yield. The dose corresponding to 100% of the recommended potassium dose mitigated salt stress in the pod formation and flowering stages, promoting a greater number of marketable pods, number of non-marketable pods, total number of pods and pod mass. The use of water with lower salinity throughout the cycle promoted greater pod mass, number of marketable pods and yield.

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Influence of intercropping and monocropping systems on fava bean cultivation under saline stress

Sousa,

Viana,

Sales

et al. 2023

Pesqui. Agropecu. Trop.

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The fava bean crop makes an important socioeconomic contribution to the Northeast region of Brazil. However, in this region, there is a quantitative and qualitative shortage of water, being necessary the use of brackish water for irrigation. This study aimed to evaluate the saline stress on the yield and water-use efficiency in fava bean crop cultivated under monoculture and intercropping systems. The experiment was conducted under field conditions, using a randomized blocks experimental design, in a 5 × 2 factorial arrangement, with four replications. The first factor corresponded to five levels of electrical conductivity of irrigation water (1.0, 2.0, 3.0, 4.0 and 5.0 dS m−1) and the second comprised two cropping systems: fava bean grown in monoculture and intercropped with corn. The salt stress negatively affected the number of pods in the intercropped system, but with less intensity. The increase of salts in the irrigation water reduces the pod length, diameter and mass, as well as the yield and water-use efficiency, while the monoculture system is less affected by these effects.

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Production and water use efficiency of peanut under salt stress and soil cover

Cited by 3 publications

References 12 publications

Nature-Inspired Superhydrophobic Sand Mulches Increase Agricultural Productivity and Water-Use Efficiency in Arid Regions

Nature-Inspired Superhydrophobic Sand Mulches Increase Agricultural Productivity and Water-Use Efficiency in Arid Regions

Salt stress and potassium fertilization on the agronomic performance of peanut crop

Influence of intercropping and monocropping systems on fava bean cultivation under saline stress

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