Efeito da cobertura morta no padrão de distribuição de água em microaspersão

Water productivity assessments for dwarf coconut by using Landsat 8 images and agrometeorological data

“…Jayakumar et al (2017), through a field experiment in Coimbatore, India, reported the benefits of polythene mulching on hybrid coconut, which increased plant height, canopy development, spathe length, number of inflorescence, number of bunches/palm/year and number of fruits/ bunch, raising WP ET when compared with the control treatment without mulch. In addition, mulching can help root-zone moisture conservation during the following climatically drier periods after the rainy season, minimizing the crop water stress (Carr, 2011;Resende et al, 2015).…”

“…Quantification and analyses of the coconut WP is important, rising in importance when considering the actual climate and land-use change conditions in some agricultural growing regions, with consequent water use competitions among different sectors (Jayakumar et al, 2017). These situations are currently happening in the coconut growing areas of Northeast Brazil, promoting a crescent demand for root-zone water conservation practices, which can improve WP, such as mulching with dry coconut leaves, and crushed coconut barks (Cintra et al, 2009;Resende et al, 2015).…”

“…On the other hand, most results from coconut field experiments did not consider WP based on ET. Instead, they did this based on irrigation (Roupsard et al, 2006;Miranda et al, 2007;Naresh Kumar et al, 2008;Cintra et al, 2009;Resende et al, 2015). Thus, there is still a lack of knowledge on the actual coconut water use and of yield responses to water consumed, needing approaches to address more information on WP based on ET (Carr, 2011).…”

Distribuição da umidade e condutividade elétrica em latossolo com cobertura morta em bananeira fertirrigada

“…A uniformidade de distribuição de água e de fertilizantes são parâmetros importantes para avaliar a eficiência de sistemas de irrigação. Esses índices de eficiência estão intimamente relacionados coma quantidade de água e de nutrientes necessários ao desenvolvimento e consequente rendimento das culturas irrigadas e fertirrigadas (RESENDE et al, 2015).…”