Eficiência do uso da água pela cultura do amendoim sob diferentes lâminas de irrigação e formas de adubação

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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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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Production of green cowpea beans fertigated by continuous and pulse drip irrigation

Souza,

Silva,

Silva

et al. 2024

Pesq. agropec. bras.

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The objective of this work was to evaluate the production of green cowpea beans under conventional fertilization, different fertigation depths, and replacement of crop evapotranspiration (ETc) through continuous and pulse drip irrigation. The experimental design was a randomized complete block with 12 treatments distributed in a 5x2+2 factorial arrangement, with five ETc replacement irrigation depths (40, 60, 80, 100, and 120%), combined with two types of fertigation application (pulse and continuous) plus two additional treatments with pulse (control 1) and continuous (control 2) irrigation at 100% of ETc under conventional fertilization. The analyzed variables were: number of pods, number of grains, fresh and dry mass of pods and grains, and total shoot fresh and dry mass. Cowpea showed a better productive performance at the fertigation depths between 80 and 100% of ETc. Moreover, pulse fertigation promotes higher yields for all production variables analyzed. Regardless of the type of application (pulse or continuous), the productive variables show better results at the fertigation depths estimated for maximum physical efficiency than in the treatments with conventional fertilization and irrigation with a depth of 100% of ETc.

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Eficiência do uso da água pela cultura do amendoim sob diferentes lâminas de irrigação e formas de adubação

Cited by 2 publications

References 11 publications

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

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

Production of green cowpea beans fertigated by continuous and pulse drip irrigation

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