Effects of irrigation on oil palm transpiration during ENSO-induced drought in the Brazilian Eastern Amazon

Brum, Mauro; Oliveira, Rafael S.; Lopez, Jose Manuel Gutierrez; Licata, Julián; Pypker, Thomas G.; Chia, Gilson Sanchez; Tinôco, Ricardo Salles; Asbjornsen, Heidi

doi:10.1016/j.agwat.2020.106569

Cited by 14 publications

(7 citation statements)

References 37 publications

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“…Dheware et al (2020) reported the positive impact of fertigation on the yield of Alphonso mango in the Konkan climatic zone. The innovative approaches of drip and sprinkler irrigations greatly improved oil yields in the palm to the tune of 26 to 35 percent under drought situations (Brum et al, 2021). Wagner et al (2021) concluded that summer water use (17 and 10 L day -1 tree -1 during summer and late autumn) in lemon trees improved yield and ratio of water use to irrigation Teixeira et al (2021) observed 1.6 to 3.6 kg m -3 water productivity across six locations of the semi-arid region.…”

Section: Resultsmentioning

confidence: 99%

Optimizing the Determinants of Water Use Efficiency in Mango

Adak¹,

Singh²,

Babu³

2022

JNRCM

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Water use efficiency (WUE) is a dependent factor in orchard ecosystems. Enhancing WUE in any agroecosystem is the national priority for achieving the goal of more fruit per drop of applied water. Farmers' practice of full irrigation in the basin by flooding reduces the scope of better WUE. Innovative approaches like deficit irrigation certainly improve WUE in mango, across climates. Statistical analysis and histographic diagrams showed maximum frequency distribution of pan evaporation of 103% in class intervals of 3.14 to 5.97 mm day -1 followed by 0.3 to 3.13 mm day -1 (99%) under subtropical conditions. The histographic distribution of reference evapotranspiration (ET0) indicated the highest frequency distribution of 96% in 4.98 to 6.32 mm day-1 and 83% in 0.93 to 2.27 mm day-1. Statistical histographic distribution of mango (cv. Dashehari) yield under subtropical climatic conditions indicated 85.4 to 108.04 kg fruits tree -1 at a 9% frequency level. The highest WUE of 20.43 to 23.96 kg fruits m -3 of water applied was obtained under a 6% frequency distribution. The deficit irrigation strategy was found to be the most appropriate for optimum yields of mango under subtropical conditions.

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Section: Resultsmentioning

confidence: 99%

Optimizing the Determinants of Water Use Efficiency in Mango

Adak¹,

Singh²,

Babu³

2022

JNRCM

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“…The availability of water strongly impacts the transpiration rate of oil palms. Brum et al (2021) stated that oil palm with a sufficient water supply during the dry season would have a higher transpiration rate.…”

Section: Discussionmentioning

confidence: 99%

Mounding technique improves physiological performance and yield of oil palm on Spodosols

Suwardi

Sutiarso²,

Wirianata³

et al. 2022

Sains Tanah J. Soil Sci. Agroclimatology

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Spodosols have been widely used for oil palm plantations, specifically in Kalimantan, Indonesia. However, they are sub-optimal for agriculture due to a lack of water and nutrient-holding capacity and a spodic layer that limits plant root development. Therefore, proper agriculture practices are needed for oil palm to enhance its potential yield. This study aims to determine the effect of the mounding technique on the physiological performance and yield of oil palms in spodosol. The study location was well-managed, with eight blocks of oil palm plantations planted in 2008 on spodosols (Typic Haplohumod) in Central Kalimantan. The mounding technique was applied to four blocks of oil palm planted in 2015, while the remaining four were left without mounding. The parameters observed were soil moisture, transpiration, number of bunches, bunch weight, and yield. The results showed that the average moisture in the mounded soil was 4% greater than the control. Additionally, the average daily transpiration of oil palm with the mounding was up to 2.30 mm day-1 or three times higher than the control. The implication was that the average yield of oil palm increased from approximately 1.84 to 3.71 tons ha-1 year-1 compared to no-mounding treatments. Furthermore, the average yield was 19-66% higher than the block without the mounding application.

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“…Rainforests typically have a high Leaf Area Index, with high rainfall interception in the canopy followed by direct evaporation, a permanent litter layer protecting the soil and a diversity in rooting depths that allows green water use to be buffered during dry periods. Forest conversion to croplands or (degrading) pastures reduces green water use, but conversion to tree crops such as oil palm (either as monoculture or mixed agroforestry system) is expected to return E TA / E TN to its natural vegetation value (Röll et al, 2015, 2019, Hardanto et al, 2017), or even increase it where irrigation is used in dry periods (Brum et al, 2021). For potentially cropped area in sub-Saharan Africa, the average rootable depth allows for maintaining an E ACT of 3 mm day −1 for 25 days (Leenaars et al, 2018).…”

Section: Application In a Set Of Tropical Watershedsmentioning

confidence: 99%

Mimicking nature to reduce agricultural impact on water cycles: A set of mimetrics

et al. 2022

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Metrics of hydrological mimicry (‘mimetrics’) reflect similarity in ecological structure and/or functions between managed and natural ecosystems. Only the land-surface parts of hydrological cycles are directly visible and represented in local knowledge and water-related legislation. Human impacts on water cycles (HIWC) can, beyond climate change, arise through effects on local and regional hydrological processes, from both reduced and increased water use compared to a natural reference vegetation with which landscape structure and hydrology are aligned. Precipitationsheds, the oceanic and terrestrial origin of rainfall, depend on evapotranspiration and thus on vegetation. The political commitment to reduce agricultural impact on nature requires hydrological mimetrics to trickle down through institutions to actions. Existing metrics do not suffice. For example, the water footprint metric that relates agricultural water use to consumption decisions, suggests minimizing water use is best, ignoring full hydrological impacts. We explore principles, criteria and indicators for understanding HIWC, via modified evapotranspiration, effects on streamflow (downstream impacts) and atmospheric fluxes and precipitation (downwind impacts). Comprehensive HIWC mimetrics for a set of pantropical watersheds suggest hydrological mimicry options for forest-derived land use patterns through intermediate densities of trees with diversity in rooting depth and water use, interacting with soils, crops and livestock.

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Effects of irrigation on oil palm transpiration during ENSO-induced drought in the Brazilian Eastern Amazon

Cited by 14 publications

References 37 publications

Optimizing the Determinants of Water Use Efficiency in Mango

Optimizing the Determinants of Water Use Efficiency in Mango

Mounding technique improves physiological performance and yield of oil palm on Spodosols

Mimicking nature to reduce agricultural impact on water cycles: A set of mimetrics

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