Mulch with sugarcane bagasse and bamboo straw attenuates salt stress in cowpea cultivation

Barbosa, Inácio João; Sousa, Henderson Castelo; Schneider, Fernanda; Sousa, Geocleber Gomes de; Lessa, Carla Ingryd Nojosa; Sanó, Lamine

doi:10.1590/1807-1929/agriambi.v25n7p485-491

Cited by 3 publications

(2 citation statements)

References 22 publications

(16 reference statements)

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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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“…Lessa et al (2019), evaluating the use of plant mulch in sorghum plants irrigated with saline waters, also found a positive effect of this practice. Similarly, Barbosa et al (2021) also found that the use of mulch minimized the impact of salts on leaf growth and gas exchange, especially in cowpea plants.…”

Section: Introductionmentioning

confidence: 85%

Maize crop yield in function of salinity and mulch

Costa

Goes

Almeida

et al. 2021

Rev. bras. eng. agríc. ambient.

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Irrigation with saline water affects the agronomic performance of the maize crop; however, the use of vegetal mulch may mitigate salt stress and promote an increase in yield. In this way, this study aimed to evaluate the grain yield of the maize plants submitted to different water salinity levels in the presence and absence of mulch. The experiment was conducted in a randomized block design arranged in a 2 × 2 factorial scheme. The first factor was the salinity of the irrigation water (1.0 and 4.0 dS m-1) and the second, with and without mulch, and five replicates. The variables analyzed were: unhusked ear mass, husked ear mass, cob mass, straw mass, husked ear diameter, husked ear length, and yield. The irrigation water with higher electrical conductivity affects negatively the ear mass with and without straw, ear diameter and ear length. The use of vegetation cover on the soil increased the unhusked ear mass with and without straw, ear diameter and length. The water with higher salinity (4.0 dS m-1) reduces the maize grain yield but with less intensity in the presence of mulch.

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Gas exchange and growth of peanut crop subjected to saline and water stress

Barbosa

Sousa

Freire

et al. 2022

Rev. bras. eng. agríc. ambient.

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Peanut crops are of great economic interest because their seeds are used as an important source of vegetable protein and edible oil. The objective of this study was to evaluate the physiological indices and growth of peanut crops subjected to saline and water stress. The experiment was conducted in Auroras, Redenção, Ceará, Brazil using a completely randomized split plot statistical design. The plots were composed of irrigation water treatments with varying levels of electrical conductivity - ECw (1.0, 2.0, 3.0, 4.0 and 5.0 dS m-1), while the subplots were formed by the water regimes of 50% and 100% crop evapotranspiration. Plant height, leaf number, shoot dry matter, relative chlorophyll level, transpiration, and leaf temperature were affected by salt stress. The water regime of 100% ETc provided better performance for the variables stem diameter, leaf number, and shoot dry mass of peanuts.

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Mulch with sugarcane bagasse and bamboo straw attenuates salt stress in cowpea cultivation

Abstract: HIGHLIGHTS Saline stress did not affect the initial growth of the cowpea crop. The use of mulch provides better morphological results in the cowpea crop. Vegetal mulches as soil protection (sugarcane bagasse and bamboo straw) attenuated effect of salts on gas exchange of cowpea.

Cited by 3 publications

References 22 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

Maize crop yield in function of salinity and mulch

Gas exchange and growth of peanut crop subjected to saline and water stress

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