Agricultural Sciences |
Recent Submissions
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Soil sampling depth effect on critical soil test values of phosphorus for conservation agriculture
(2023) [Journal article]The critical soil test value (CSTV) of phosphorus (P) is the threshold where it is possible to obtain 95–100% of the maximum crop yield. Although the P buildup in the topsoil of conservation tillage may affect this threshold, ... -
Soil phosphorus forms and fertilizer use efficiency are affected by tillage and soil acidity management
(2023) [Journal article]Liming combined with no-tillage (NT) can increase the efficiency of P use by accumulating soil P in more available forms and improving root exploration due to the absence of toxic Al3+. This study aimed to evaluate the ... -
Soil acidity correction and nutrient availability as a function of segmental liming
(2024) [Journal article]Segmental liming involves the incorporation of lime into the subsoil in narrow strips, typically associated with deep ripping. This study aimed to evaluate the vertical and horizontal distribution of soil acidity and ... -
Compreendendo a eutrofização de uma lagoa costeira rasa subtropical pelo monitoramento de parâmetros hídricos
(2025) [Journal article]A Lagoa dos Barros, no sul do Brasil, é exutório de 11 afluentes (AS) que compõe sua bacia hidrográfica (240 km²). Em 2020 e 2022 houve floração de fitoplâncton. Amostras mensais de águas da Lagoa e dos AS, agrupados por ... -
Phosphite compounds suppress anthracnose in soybean seeds infected by Colletotrichum truncatum and stimulate growth and defense mechanisms
(2025) [Journal article]Soybean is one of the main agricultural commodities, and its productivity is limited by several diseases, such as anthracnose, which is caused by a complex of fungal species, with Colletotrichum truncatum being the most ... -
Use and recovery of P reserves in Southern Brazil Oxisols under no-till with low and high P availability
(2024) [Journal article]The accessibility of soil P reserves by plants on highly weathered Brazilian soils remains unclear. In this study, we assessed the contribution of soil P fractions to P uptake by soybean plants in two no-till Oxisols ... -
Sediment source tracing in a Brazilian subtropical catchment using diffuse reflectance : effect of spectral ranges, pre-processing techniques, and multivariate model
(2024) [Journal article]Agriculture intensification in Southern Brazil’s subtropical regions combined with the frequent occurrence of erosive rainfall has rendered the area a global water erosion hotspot. In this scenario, understanding and ... -
Effect of potassium rates and application methods in no-till on soil K availability and crop yield
(2024) [Journal article]The combination of potassium (K) fertilization with the adoption of no- tillage (NT) increases the concentration gradient of K in the soil, requiring subsurface layers to diagnose fertility. This study aimed to evaluate ... -
Potassium distribution in soil profiles under no-tillage system
(2024) [Journal article]Potassium (K) vertical mobility in soils has often been overestimated and used as a rationale for recommending the broadcast application of this nutrient in fertility management programs, especially in soils with low cation ... -
Heavy metal-based fungicides alter the chemical fractions of Cu, Zn, and Mn in vineyards in southern Brazil
(2024) [Journal article]This study aimed to evaluate Cu, Zn, and Mn fractions in vineyard soils in two important wine-growing regions in Latin America, which have soils with different soil organic matter (SOM) and clay contents. Soils were collected ...
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