Hidrogel, calagem e adubação no desenvolvimento inicial, sobrevivência e composição nutricional de plantas híbridas de eucalipto

Bartieres, Edinéia Messias Martins; Carnevali, Natália Hilgert de Souza; Lima, Eduardo do Valle; Carnevali, T.O.; Mallmann, Viviane

doi:10.4336/2016.pfb.36.86.990

Cited by 8 publications

(3 citation statements)

References 8 publications

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“…It has been shown that the use of water-retaining polymers (hydrogels) contributes to the retention of water in the soil, making it available to plants in dry periods (Felippe et al, 2016;Silva et al, 2019), as well as improving aeration and the cation exchange capacity, and reducing nutrient leaching (Bartieres et al, 2016;Konzen et al, 2017). However, information on the ecophysiology of fruit tree species in the seedling phase associated with the use of hydrogels is scarce.…”

Section: Introductionmentioning

confidence: 99%

WATER-RETAINING POLYMER MITIGATES THE WATER DEFICIT IN Schinus terebinthifolia: PHOTOSYNTHETIC METABOLISM AND INITIAL GROWTH

et al. 2020

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The use of water-retaining polymer (hydrogel) can mitigate the damage to the photosynthetic apparatus and increase the robustness of young plants under water deficit conditions. Thus, the aim of this study was to evaluate the effect of water-retaining polymer on the morphophysiological aspects of Schinus terebinthifolia Raddi submitted to water deficit. The studied water regimes were characterized by three plant irrigation management: 1) control: irrigated daily, 2) stress: water deficit (irrigation suspension) and 3) stress + hydrogel: water deficit + water-retaining polymer. The plants were submitted to irrigation suspension until photosynthesis approached zero [1 st P0], followed by resumption of irrigation (REI) for 15 days. After REI, until recovery of photosynthetic rate of plants, the maintenance of irrigation of all plants for 90 days, characterizing the final recovery (125 th day of experiment). The photosynthetic rate reached values close to zero in plants under stress on the 20 th day of water restriction, whereas the plants in conditions with hydrogel did not show a decrease in leaf metabolism. Excluding intercellular CO2 concentration, physiological parameters were lower on 1 st P0 in plants under water deficit grown without hydrogel than those in plants grown with hydrogel, but all plants showed physiological plasticity. The use hydrogel contributed to the maintenance of the photosynthetic capacity of S. terebinthifolia under water deficit.

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Section: Introductionmentioning

confidence: 99%

WATER-RETAINING POLYMER MITIGATES THE WATER DEFICIT IN Schinus terebinthifolia: PHOTOSYNTHETIC METABOLISM AND INITIAL GROWTH

et al. 2020

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“…Likewise, Buzetto et al (2002) and Navroski et al (2014), also verified this positive effect of hydrogel in post-planting of Eucalyptus dunnii. According to Bartieres et al (2016), the use of the hydrogel alone does not favor the growth of the plants, however it increases the survival when compared to the control treatment, without hydrogel or additional fertilization. These results differed from those of Saad et al (2009), in which the use of hydrogel did not result in increased plant survival in both sandy and sandy soils.…”

Section: Discussionmentioning

confidence: 99%

Pre-Irrigation With Gel Hidroretentor in Eucalyptus Seedling Establishment in the Field

Bernardino

Bonomo

Souza

et al. 2019

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Research has sought new technologies aimed at establishing more productive forests. Hidroretentor gel that has the function of increasing the availability of water to the plant, in the most critical stage of establishment of the cuttings in the field. The objective of this study was to evaluate increasing levels of water retention gel applied in pre-irrigation, moments before planting, observing the survival index, and the morphological variables for the hybrid Eucalyptus grandis x E. urophylla-03, in Chapadinha-MA. The experiment was a randomized block with seven treatments and three replicates. The treatments consisted of five increasing doses of 1.0; 2.0; 3.0; 4.0 and 5.0 g 5 L-1 gel solution per liters of pre-irrigation, a treatment without the use of the gel; and a conventional planting treatment. The use of pre-irrigation with hidroretentores polymers, known as hidroretentor gel at a concentration of 4 and 5g 5L-1, provides a greater height, stem diameter, increasing the growth of eucalyptus plants in post-planting. The depth of the root system did not improve when a higher dose of gel was used, obtaining lower values than those obtained by the treatment without the use of the hidroretentor gel.

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“…The use of hydrogel has been widely spread among forest plantings, as an alternative to overcome severe drought episodes driven by climate change in the tropics (Saha et al 2020). Higher survival rates and satisfactory development have been achieved when using hydrogel in commercial plantings, especially for the Eucalyptus and Pinus species (Bartieres et al, 2016;Mudhanganyi et al,. 2018;Felippe et al,.…”

Section: Introductionmentioning

confidence: 99%

Dalbergia nigra (Vell.) grown using hydrogel planting methods in the establishment of a silvopastoral system in a degraded soil

Oliveira,

Gomes,

Oliveira

et al. 2024

Rev. ambiente água

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This work tested the use of a superabsorbent polymer (hydrogel) in a silvopastoral system with Brazilian-rosewood (Dalbergia nigra (Vell.) Allemão ex Benth.) in a degraded pasture area. The experimental site is part of the Bananal do Norte experimental farm, Cachoeiro de Itapemirim, Espírito Santo, Brazil. Over 480 seedlings were planted and submitted to the treatments: Dry hydrogel (DRY); Hydrated hydrogel around the root ball (HAR); Hydrated hydrogel mixed with soil (HMS); and water only (WAT). The design was in randomized blocks, with three repetitions. The tested variables were plant survival, height and root collar diameter until 672 days after planting, soil moisture at 93 days after planting and total biomass and leaf chemical analysis at 184 days after planting. Survival was positively influenced by the application of the hydrogel, but there was little or no effect regarding the application method. The hydrogel and its application techniques did not alter growth in height and root collar diameter. The polymer did not influence the development in biomass and nutritional content of the leaves, but did influence the biomass distribution. The use of the superabsorbent polymer was therefore not effective in accelerating plant growth and anticipating the stages in the implantation of the silvopastoral system. Keywords: agroforestry, brazilian-rosewood, degraded pasture.

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Hidrogel, calagem e adubação no desenvolvimento inicial, sobrevivência e composição nutricional de plantas híbridas de eucalipto

Cited by 8 publications

References 8 publications

WATER-RETAINING POLYMER MITIGATES THE WATER DEFICIT IN Schinus terebinthifolia: PHOTOSYNTHETIC METABOLISM AND INITIAL GROWTH

WATER-RETAINING POLYMER MITIGATES THE WATER DEFICIT IN Schinus terebinthifolia: PHOTOSYNTHETIC METABOLISM AND INITIAL GROWTH

Pre-Irrigation With Gel Hidroretentor in Eucalyptus Seedling Establishment in the Field

Dalbergia nigra (Vell.) grown using hydrogel planting methods in the establishment of a silvopastoral system in a degraded soil

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