Desempenho Agronômico Do Sorgo Em Função De Lâminas De Irrigação E Cobertura Do Solo

Alcantâra, Pedro Bruno; Sousa, Paulo Gleisson Rodrigues de; Brasil, Sc; Sousa, José Paulo; Bastos, Ricardo Leoni Gonçalves; Viana, Thales Vinícius de Araújo

doi:10.7127/iv-inovagri-meeting-2017-res5150962

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“…A linear increase in behavior for the variables plant height (PH), stem diameter (SD), and number of tillers (NT) with irrigation depth for the three sorghum sections had been observed, according to the regression analysis, except for the power pattern shown by the PH variable in Section 1 (Figure 4a). Such results highlight the sorghum's potential response for higher irrigation depths, thus bearing out results reported by [56], who also found a positive linear response in plant height due to an increase in the irrigation depth for the sorghum crop to which mulch was applied.…”

Section: Growth and Sorghum Production Under Different Water Regimes With Wastewatersupporting

confidence: 87%

Coupling Water Resources and Agricultural Practices for Sorghum in a Semiarid Environment

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Montenegro

Lima

et al. 2021

Water

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Water scarcity and changing rainfall distribution have caused uncertainties in relation to agricultural production in semiarid areas. In this context, water reuse for irrigation is a promising alternative, although requiring irrigation and agricultural management. Production of forage plants is strategic for semiarid areas due to their high tolerance to stresses and use as animal fodder. The objective of this work was to evaluate the combined performance of treated wastewater irrigation and mulching on forage sorghum and on soil attributes in Northeast Brazil. Sorghum was cropped in November 2018, three months before the beginning of the hydrologic year, and cultivated over three cycles until April 2019. The experiment was designed with five irrigation depths (60%, 80%, 100%, 120%, and 140% of crop evapotranspiration), and with four soil cover conditions (0% (witness), soil covered with native vegetation, with coconut coir, and with macerated moringa seeds), adopting four replications. Irrigation with treated wastewater promoted linear increases in forage sorghum yield at irrigation depths of up to 140% of crop evapotranspiration. Mulch promoted a 24% increase in productivity in relation to the area where conservation was not practiced, being able to control salinity while also contributing to the higher incorporation of organic matter. Irrigation with treated wastewater had no negative agronomic impacts on soil, once natural rainfall events typical of the Brazilian semiarid region allowed effective salt leaching from shallow sandy soils.

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Section: Growth and Sorghum Production Under Different Water Regimes With Wastewatersupporting

confidence: 87%

Coupling Water Resources and Agricultural Practices for Sorghum in a Semiarid Environment

Carvalho

Montenegro

Lima

et al. 2021

Water

View full text Add to dashboard Cite

show abstract

Desempenho Agronômico Do Sorgo Em Função De Lâminas De Irrigação E Cobertura Do Solo

Cited by 1 publication

References 1 publication

Coupling Water Resources and Agricultural Practices for Sorghum in a Semiarid Environment

Coupling Water Resources and Agricultural Practices for Sorghum in a Semiarid Environment

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