Water use of cowpea under deficit irrigation and cultivation systems in semi-arid region

Freitas, Rômulo Magno Oliveira de; Dombroski, Jéferson Luiz Dallabona; Freitas, Francisco Cláudio Lopes de; Nogueira, Narjara Walessa; Leite, Tiago S.; Praxedes, Sidney Carlos

doi:10.1590/1807-1929/agriambi.v23n4p271-276

Cited by 6 publications

(4 citation statements)

References 17 publications

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“…According to Peres et al (2010), water loss at the upper soil layers is reduced by up to 53.3% due to soil mulching, justifying the maintenance of this cover. As a result, cowpea cultivation with soil mulching results in higher water-use efficiency and grain yield in semiarid regions (Freitas et al, 2019).…”

Section: /7mentioning

confidence: 99%

Cowpea growth and production under water stress and soil mulching

Souza,

Souto,

Dutra Filho

et al. 2024

Rev. bras. eng. agríc. ambient.

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Cowpea is a crop of high socioeconomic importance for the semi-arid region of Brazil, although facing significant yield losses due to drought, requiring management strategies to overcome this scenario. From this perspective, this study aimed to evaluate the growth and yield of cowpea genotypes under drought in different cultivation systems. The statistical design was randomized blocks arranged in a 2 × 4 × 2 factorial scheme corresponding to two cowpea genotypes (BRS Pujante and Costela de Vaca), four levels of crop evapotranspiration (40, 60, 80, and 100%), and two cultivation systems (with and without soil mulching). The BRS Pujante showed a higher leaf area and 100-grain weight than Costela de Vaca under all levels of crop evapotranspiration. The cowpea yield parameters showed the best results at 80 and 100% crop evapotranspiration. Regardless of the genotype, soil mulching provided higher cowpea 100-grain weight values. Soil mulching combined with 80% crop evapotranspiration is an appropriate strategy for cowpea production.

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Section: /7mentioning

confidence: 99%

Cowpea growth and production under water stress and soil mulching

Souza,

Souto,

Dutra Filho

et al. 2024

Rev. bras. eng. agríc. ambient.

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“…The direct plantation (SDP) method is a management strategy that allows better soil management with the possibility of performing minimal activities in the soil and the incorporation of mulch, promoting a better productive response of the plants [ 10 , 11 ]. Combined with productivity and soil improvement, it is a viable option to control weed communities, which changes the dynamics of weed infestation and leads to its reduction [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

“…Combined with productivity and soil improvement, it is a viable option to control weed communities, which changes the dynamics of weed infestation and leads to its reduction [ 10 ]. By adopting SDP, the layer of straw over the soil acts as a protective covering, reducing the exposure of the soil to sunlight, regulating its temperature, and decreasing the germination of weed seeds [ 11 , 12 ]. In addition, straw also acts as a physical barrier, affecting weed emergence or the release of substances that inhibit the germination and/or growth of weeds [ 13 , 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Weed-Hoeing Periods in Cowpea Cultivation under Direct and Conventional Systems

Sousa

Fontes

Filho

et al. 2023

Plants

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Weed coexistence with an agricultural crop can negatively affect its growth, development, and yield. From this perspective, this study aimed to evaluate weed management strategies and their effect on the agronomic parameters of cowpea cultivation in direct (SPD) and conventional (SPC) planting systems. The experiment was set up in a completely randomized block design with a split-plot arrangement with four replications. The plots received a source of variation referring to the planting systems (direct and conventional planting), and the subplots corresponded to ten weed management strategies (manual hoeing 18 days after planting (DAP); at 36 DAP; at 54 DAP; at 18 and 36 DAP; at 18 and 54 DAP; at 18 and 72 DAP; at 36 and 54 DAP; at 36–72 DAP; at 18, 36, and 54 DAP; and a control with no hoeing). Density and dry mass evaluations of the cowpea plants were performed at harvest (72 DAP) by determining the number of pods per plant, pod length, number of grains per pod, 1000-grain mass, and yield. A total of 28 species distributed in 12 botanical families were identified in the two cultivation systems. The family Poaceae showed the highest frequency, with 25% of the species identified. At the end of the assay, treatment 20 had the highest positive influence and provided significant quantitative gains to the complex of traits related to cowpea production (SPD and hoeing at 18, 36, and 54 DAP). UPGMA cluster analysis and canonical discriminant analysis were performed and allowed a better classification of the evaluated treatments. It was observed that the first two canonical variables explained 90.8% of the total variance contained in the original variables. The use of SPD with weeding at 18, 36, and 54 days after planting provides greater weed control and significant quantitative gains for the complex of characteristics related to cowpea production. The results underscore the importance of choosing the correct cropping system and implementing effective weeding practices to optimize weed control and improve crop performance.

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“…In the Brazilian semi-arid region, cowpea is widely cultivated under rainfed conditions during raining periods and under irrigated conditions during the dry season, mainly in the irrigated perimeters of this region (Freitas et al, 2019). Irrigation in the semi-arid region is usually performed using saline water with high concentrations of sodium chloride salts (Medeiros et al, 2003;Sá et al, 2020).…”

Section: Introductionmentioning

confidence: 99%