Avaliação econômica por projeção financeira de um adensamento de erva-mate

Júnior, Eraldo Antonio Bonfatti; Lengowski, Elaine Cristina; Machado, Paula Fontana; Dickow, Kauana Melissa Cunha

doi:10.52945/rac.v33i1.492

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…We used seeds from a clonal seed orchard belonging to the company Bitumirim SA, which were stratified according to a methodology proposed by [27]. After the stratification process, seedlings with a root axis of up to 1.5 cm were sown in 110 cm 3 tubes and covered with a layer of ground coconut fiber.…”

Section: Methodsmentioning

confidence: 99%

“…Belonging to the Aquifoliaceae family, Ilex paraguariensis A.St.-Hil. (yerba mate) is an arboreal species native to the Mixed Rainforest, with economic, social, and ecological importance, produced mainly by small properties in Southern Brazil [1][2][3]. Its use occurs through its leaves and fine branches to make drinks such as "chimarrão", "tereré", and teas and the production of cosmetics, medicines, and food, with an average consumption that can reach 10 kg person -1 year -1 [4].…”

Section: Introductionmentioning

confidence: 99%

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Growth and Quality of Yerba Mate Seedlings Affected by Fertilizer Doses in South Brazil

Walter

Gonçalves

Kratz

et al. 2022

Braz. arch. biol. technol.

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Given the lack of information on the use of controlled-release fertilizers in yerba mate seedlings production, this study aimed to evaluate growth and morphological characteristics of seedlings produced with two controlled-release fertilizers applied at different doses. We used seeds from a clonal seed orchard, which were sown in a commercial substrate based on peat and vermiculite, with Osmocote ® MiniPrill 3M (CRF 3M) and Basacote ® Plus 9M (CRF 9M) fertilizers, both in doses of 0, 2, 4, 6, 8, 10, and 12 kg m -3 . Seedling height and stem diameter were measured at 60, 90, 120, and 180 days after sowing and, at 180 days, shoot, root, and total biomass, tube withdrawal ease, and root aggregation. From these data, we calculated Dickson's quality index, technical efficiency, Height/Stem diameter ratio, and maximum technical efficiency dose. We verified values statistically superior to control treatment (0 kg m -3 ) in all variables in response to controlledrelease fertilizer 3M and 9M, demonstrating the viability of yerba mate seedling production using controlledrelease fertilizers. This is also evidenced through results obtained for growth in height and stem diameter. Although CRF 3M favored seedling growth, CRF 9M showed similar efficiency. The Osmocote ® MiniPrill 3M is more efficient than Basacote ® Plus 9M in most of the variables analyzed and has a lower input required to HIGHLIGHTS• Yerba mate seedlings are growth with controlled-release fertilizer.• Use of controlled-release fertilizer reduces the production costs.• The fertilizer 3M has a lower input required than fertilizer 9M.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Growth and Quality of Yerba Mate Seedlings Affected by Fertilizer Doses in South Brazil

Walter

Gonçalves

Kratz

et al. 2022

Braz. arch. biol. technol.

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Spatial Prioritization for the Implementation of Payments for Ecosystem Services Programs in the Feijão River Basin, São Carlos-Sp, Brazil

Cunha,

de Sousa,

Ramalho

et al. 2024

Preprint

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Essential for maintaining life on Earth, ecosystem services also have economic value as scarce goods subject to human appropriation. However, the value of these services may be lost because landholders generally receive no compensation for the benefits their land provides for others. Payments for ecosystem services (PES) are an alternative solution to this problem, whereby the beneficiaries of ecosystem services reward the providers of these services with a view to producing positive externalities. Based on this concept, the study aimed to develop and apply a methodological approach to identify priority areas for the implementation of PES programs in the Feijão River Basin (FRB), São Carlos, São Paulo state (SP), Brazil. To that end, a soil erosion vulnerability map was developed by reinterpreting information available in thematic maps characterizing the physical, biotic, and anthropic environments of the Feijão River Basin, using the methodology of Crepani et al. (2001) in a Geographic Information Systems (GIS) environment. Additionally, economic valuation of the productive activities carried out on each property listed in the Rural Environmental Registry (CAR) was performed based on land cover mapping and the Net Present Value (NPV) and Equivalent Annual Value (EAV) methods. Finally, spatial prioritization of the watershed for PES program implementation was achieved by cross-referencing information on environmental vulnerability and economic value. This resulted in a priority area of 1,382.97 ha, with an EAV of $97,887.54, corresponding to the intersection between areas most vulnerable to soil erosion and pasture areas, which have the lowest opportunity cost.

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Avaliação econômica por projeção financeira de um adensamento de erva-mate

Cited by 2 publications

References 5 publications

Growth and Quality of Yerba Mate Seedlings Affected by Fertilizer Doses in South Brazil

Growth and Quality of Yerba Mate Seedlings Affected by Fertilizer Doses in South Brazil

Spatial Prioritization for the Implementation of Payments for Ecosystem Services Programs in the Feijão River Basin, São Carlos-Sp, Brazil

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