Volume 49, 2025

ABSTRACT Pineapple is a nutrient-demanding plant and information regarding the amounts accumulated in its organs is essential in decision-making for management practices and fertilization recommendations. This study aimed to determine the macronutrient absorption during the plant cycle of pineapple cv. BRS Imperial that was cultivated in sandy loam soil with and without plastic mulch cover. Plants were grown at a spacing of 0.9 × 0.4 × 0.4 m, 38,460 plants per hectare, irrigated by drip and fertilized according to soil […]

ABSTRACT Stress transfers inside the soil during the traveling process of agricultural machinery, and the bonding of soil particles during this process is the main cause of soil compaction. In this study, the discrete element method was used to simulate the different responses of stress transfer and particle bonding in the soil under different times of tire passes in the tire-soil interaction process of agricultural machinery operation. It was found that from 1 to 8 passes, the increase in the […]

ABSTRACT Subtropical soils can have medium to high soil organic matter levels, which directly affects cation exchange capacity (CEC) and potassium (K) availability to plants. This generates the need to define K buffer capacity (KBC) values and K corrective rates to improve the fertilization recommendation system for these soils, ensuring high yields and reducing the likelihood of K losses in the environment. This study aimed to define KBC values and the K rates to be applied in corrective fertilization of […]

ABSTRACT The use of native and exotic species in the reforestation of degraded areas has been considered an important strategy to improve soil quality. However, there is still scarce information about which species are more efficient for soil organic matter (SOM) formation. This study aimed to evaluate the decomposition of leguminous and non-leguminous tree litter, its impact on light organic matter (LOM), particulate organic matter (POM), and mineral-associated organic matter (MAOM) dynamics, and consequently, SOM formation efficiency. Leaf litter from […]

ABSTRACT Forest seedlings production generally uses polypropylene plastic tubes due to their advantages, as root protection and easy operation. However, these tubes have limitations, as small substrate accommodates capacity, there is a possibility of root deformation, and there is a composition of pollutant and non–renewable material. It is necessary to find environmentally correct alternatives. This study aimed to evaluate the morphological and nutritional aspects of Eucalyptus urophylla seedlings produced in biodegradable containers, compared to plastic polypropylene tubes. For this, seedlings […]

ABSTRACT Pedogenetic processes or phenomena not directly related to pedogenesis can strongly influence soil formation. This study aimed to identify the origin of the abrupt textural difference and the deep, dark horizon in a soil profile located in southern Brazil by examining pedogenetic processes and sedimentology. The research was conducted in the geomorphological province of the Coastal Plain of Rio Grande do Sul, characterized by marine and eolian sedimentary deposits from the Quaternary (Pleistocene) period, formed during alternating humid and […]

ABSTRACT Sudan grass (Sorghum sudanense (Piper) Stapf.) shows potential as a cover crop under the no-tillage system in soybean growing under the conditions of the Brazilian Cerrado region, due to high biomass production under water deficit. The large amount of biomass produced can improve soil microbiological activity, but may also negatively affect subsequent soybean yield due to nutrient competition, particularly if termination of the cover crop is delayed. To improves the use of Sudan grass as a cover crop, this […]

ABSTRACT One considerable concern arises from saline wastewater resulting from the production chain of the anticoagulant drug heparin. This waste contains a high concentration of sodium (Na, 2400 mg L-1), which can negatively influence soil structure. Simultaneously, it possesses a rich organic carbon content and nutrients that are beneficial to agricultural systems. This study sought to assess potential changes in physical and chemical properties, as well as soil mineralogy resulting from the application of varying proportions of industrial saline wastewater […]

RESUMO O sequestro de carbono orgânico do solo (COS) em terras agrícolas representa uma oportunidade significativa para mitigar as mudanças climáticas, removendo dióxido de carbono da atmosfera. Ferramentas de simulação são cada vez mais utilizadas para avaliar o impacto das mudanças climáticas e do manejo do solo na dinâmica dos estoques de carbono orgânico do solo. Embora os solos andinos normalmente armazenem grandes quantidades de carbono orgânico, práticas agrícolas, especialmente a aração, podem esgotar esses estoques, criando a necessidade de […]

ABSTRACT To optimize land use and achieve carbon peaking and carbon neutrality targets, in this study, we investigated the spatial and temporal patterns of land use and land cover change (LUCC) and carbon storage (CS) in the Jinan Metropolitan Area from 2010 to 2030. Using land use data from 2010 to 2020, the PLUS model was employed to simulate land use patterns for 2030 under four development scenarios: Natural Development Scenario (NDS), Ecological Protection Scenario (EPS), Cropland Protection Scenario (CPS) […]