Priscila Matos - Academia.edu (original) (raw)

Papers by Priscila Matos

$Research paper thumbnail of Soil organic carbon fractions in agroforestry system in Brazil: seasonality and short-term dynamic assessment$

Revista Brasileira De Ciencia Do Solo, May 1, 2023

Agroforestry Systems, Jun 17, 2022

FLORESTA

The objective was to evaluate the effects of recipients and root characteristics on the quality o... more The objective was to evaluate the effects of recipients and root characteristics on the quality of Australian cedar seedlings. The research was carried out in two stages, the first consisted of seedling production in the nursery and evaluation of morphological parameters, and the second consisted of evaluating the potential for root regeneration. There were five treatments involving two production systems for seedlings, tubes, and plastic bags: T1 – tube (288 cm3); T2 – tube (120 cm3); T3 - tube (55 cm3); T4 - plastic bags (424 cm3); and T5 - plastic bags (216 cm3). The seeds used are from a matrix tree located at the State University of Southwest Bahia. The design of the experiment was a completely randomized design with four replications. The morphological parameters evaluated were a) shoot height (H); b) neck diameter (D); c) fresh and dry biomass of shoots and roots; d) H/D, H/SDM, and shoot and root dry mass ratio (SDM/RDM); e) Dickson Quality Index (DQI), and f) the total numb...

Revista Brasileira de Ciência do Solo

Sustentabilidade de Recursos Florestais 2

O objetivo do presente trabalho foi avaliar o efeito de doses de nitrogenio e fosforo sobre o cre... more O objetivo do presente trabalho foi avaliar o efeito de doses de nitrogenio e fosforo sobre o crescimento de mudas de Amburana cearensis (umburana), determinando a melhor dose destes nutrientes. O trabalho foi conduzido sob condicoes de viveiro telado localizado no Setor de Agricultura I do Instituto Federal do Norte de Minas Gerais - Campus Salinas, adotou-se o delineamento experimental em blocos casualizados, com quatro repeticoes, no esquema fatorial 5 x 4, sendo estudado o efeito de cinco doses de nitrogenio (0, 75, 150, 225 e 300 mg dm -3 ) e quatro doses de fosforo (0, 150, 300 e 450 mg dm -3 ). Cada unidade experimental foi constituida por 12 mudas. Apos 130 dias da semeadura foram colhidos dados de altura; diâmetro do coleto; massa seca da parte aerea, raiz e total; alem das relacoes altura/diâmetro do coleto, altura/massa seca parte aerea, massa seca parte aerea/massa seca de raiz e o indice de qualidade de Dickson (IQD). As mudas de umburana respondem a adicao de N e P, se...

O processo de embebicao das sementes pode ser considerado um dos fatores externos que mais interf... more O processo de embebicao das sementes pode ser considerado um dos fatores externos que mais interferem diretamente no processo germinativo. O objetivo do presente trabalho foi avaliar o efeito do estresse hidrico e salino sob a germinacao e crescimento inicial de plântulas de carobinha-do-campo ( Jacaranda pteroides ). O trabalho foi conduzido em delineamento experimental inteiramente casualizado com quatro repeticoes de 20 sementes, no esquema fatorial 2 x 5, sendo estudado o efeito de dois agentes osmoticos, polietilenoglicol 6000 (PEG 6000) e cloreto de sodio (NaCl), para simulacao de estresse hidrico e salino, respectivamente, em cinco niveis de potenciais osmoticos (0,0; -0,3; -0,6; -1,2 e -1,8 MPa). Aos 28 dias apos a semeadura foi avaliado a percentagem de germinacao, indice de velocidade de germinacao (IVG), tempo medio de germinacao (TMG), comprimento da parte aerea, comprimento da maior raiz, massa fresca da parte aerea (MFPA), massa fresca de raiz (MFR), massa seca da part...

ABSTRACT: This study assessed the effect of cover crop biomass on the epigeal fauna of an organic... more ABSTRACT: This study assessed the effect of cover crop biomass on the epigeal fauna of an organic eggplant (Solanum melongena L.) cropping system. A randomized block design was used, with four cover crop treatments: brachiaria, crotalaria, millet, and cocktail (brachiaria, crotalaria and millet). The epigeal faunal indices were determined at each plot. The epigeal fauna of a secondary forest site was also assessed for comparison. Epigeal individuals were collected using pitfall traps at two sampling periods (110 and 180 days after mowing cover crops). Soil samples were collected for determination of physical and chemic properties. 2032 individuals were captured in the first sampling and 3806 individuals in the second. The highest values of wealth in the first collection were observed in the millet and cocktail areas. Cluster analysis showed similarity of epigeal faunal groups between millet and brachiaria plots at the first sampling and between cocktail and crotalaria sites at the s...

O objetivo do presente trabalho foi avaliar o efeito de doses crescentes de nitrogenio no crescim... more O objetivo do presente trabalho foi avaliar o efeito de doses crescentes de nitrogenio no crescimento inicial e qualidade de mudas de caviuna-do-cerrado ( Dalbergia miscolobium Benth.) e caroba-do-campo ( Jacaranda cuspidifolia Mart.). O experimento foi conduzido em condicoes de viveiro telado no Setor de Agricultura I do Instituto Federal do Norte de Minas Gerais (IFNMG – Câmpus Salinas). O delineamento adotado foi o de blocos casualizados, com quatro repeticoes, no esquema fatorial 5 x 2, sendo estudado o efeito de cinco doses de nitrogenio (0, 75, 150, 225 e 300 mg dm -3 ) no comportamento de duas especies nativas da Caatinga Mineira (caviuna-do-cerrado e caroba-do-campo). Aos 125 dias apos instalacao do trabalho foi avaliado a altura da parte aerea (H); diâmetro de coleto (DC); massa seca da parte aerea (MSPA), raiz (MSR) e total (MST); as relacoes entre altura da parte aerea e diâmetro de coleto (H/DC), altura da parte aerea e massa seca da parte aerea (H/MSPA), massa seca das ...

Energy, Ecology and Environment

Sustainability

Agroforestry systems have been promoted as a solution to address trade-offs between environmental... more Agroforestry systems have been promoted as a solution to address trade-offs between environmental conservation efforts and the need for increased agricultural productivity on smallholder farms in Brazil. However, the impact of land use change from degraded pasture to agroforestry on soil properties remains unclear. The objectives of this research were to: (1) assess soil chemical, physical and biological properties across distinct land uses (degraded pasture, agroforestry and secondary forest); and (2) understand relationships between litter quality, soil organic matter (SOM) and key soil quality parameters in the Brazilian Atlantic Rainforest. Soils, macroinvertebrates and litter were collected in April and September of 2018 under five land uses, including: three types of agroforestry systems, a degraded pasture and a secondary forest in Sapucaia, Rio de Janeiro, Brazil. Our results showed that soil properties clearly separated the three agroforestry systems plots (AS1, AS2, AS3) f...

Revista Caatinga

Forest management can lead to numerous changes of different magnitudes in the composition and div... more Forest management can lead to numerous changes of different magnitudes in the composition and diversity of soil organisms, according to the level of interference with the habitat. Within this context, this study aimed to test the influence of different types of forest management on the edaphic macrofauna community in a region of arboreal Caatinga. The study was carried out in Contendas do Sincorá National Forest, Contendas do Sincorá - Bahia. The experimental area consisted of three types of management (clear cutting, selective cutting by diameter at breast height and selective cutting by species), and a condition of unmanaged Caatinga, which was used as control. The macrofauna was sampled twice a year (March and November) using the soil monolith method. Densities, total number of individuals, total richness, average richness, and Shannon and Pielou rates were estimated. The soil macrofauna was shown to be sensitive to different forest management practices, which indicates that sele...