Results 51 to 60 of about 1,042 (116)

Barium isotopic fractionation during strong weathering of basalt in a tropical climate

open access: yesEnvironment International, 2020
Barium (Ba) is an element which is toxic to humans, plants, and animals. Deciphering the geochemical behavior of Ba in soils is fundamental for assessing the potentials risks posed by Ba. Ba isotopes are a potentially robust tracer of Ba in soils.
Yingzeng Gong   +6 more
doaj   +1 more source

Balancing Harvesting and Conservation: Demographic Responses of a Threatened Palm to Anthropogenic Disturbance

open access: yesEcology and Evolution, Volume 16, Issue 1, January 2026.
Nineteen years of demographic data reveal a consistent decline of Euterpe edulis in forest fragments, highlighting the species' vulnerability. While the population shows resilience to fruit harvesting, palm heart extraction leads to a demographic collapse.
Eduardo T. B. Mendes, Rita C. Q. Portela
wiley   +1 more source

Phosphorus Deficiency Affects Memory‐Mediated Recovery From Recurrent Water Stress in Drought‐Sensitive Soybean

open access: yesPhysiologia Plantarum, Volume 178, Issue 1, January/February 2026.
ABSTRACT Phosphorus (P) deficiency and water deficit are major constraints to soybean yield worldwide. While their individual impacts are well established, little is known about how P deficiency modulates soybean recovery from recurrent water stress.
Isadora Rodrigues Medina Santana   +3 more
wiley   +1 more source

Combining Insecticides and Bioinputs With Eucalyptus Wood Vinegar: Effects on the Soybean Crop

open access: yesAdvances in Agriculture, Volume 2026, Issue 1, 2026.
The use of pesticides and bioinputs in agriculture is one of the most vital needs today to improve crop yields. A combination of pesticides and bioinputs, along with natural agents, is a viable solution to make agribusiness more eco‐friendly. Wood vinegar (WV) is a recognized agricultural input that enhances plant growth and can act as a valuable agent
Leonardo José de Sousa Lima   +10 more
wiley   +1 more source

Produção de matéria seca e de grãos por plantas de feijoeiro (Phaseolus vulgaris L.) cultivadas em solos tratados com metais pesados Production of dry material and grains by bean plants (Phaseolus vulgaris L. ) cultivated in soils treated with heavy metals

open access: yesQuímica Nova, 2008
This work aimed at evaluating the contents of extractable Cd, Pb, Zn and Cu with a solution of DTPA (diethyleneaminopentacetic acid) and to relate them with the production of dry material and grain production of bean plants under two conditions of ...
Alexandre Vitor Santana de Carvalho   +3 more
doaj   +1 more source

Off‐season crops as a strategy for renovating degraded pastures and improving maize yield in a low‐altitude tropical region

open access: yesAgronomy Journal, Volume 117, Issue 6, November/December 2025.
Abstract Brazil can expand cultivated areas without deforestation by restoring degraded pastures and optimizing grain production through off‐season crops. This study evaluated eight off‐season treatments, including fallow, monocrops, and intercropping combinations, and their effects on maize (Zea mays L.) intercropped with guinea grass (Megathyrsus ...
Sarah V. Pedrão   +7 more
wiley   +1 more source

Substratos e níveis de água no potencial germinativo de sementes de uvaia Substrate and water levels on the germinative potential of seeds of uvaia

open access: yesRevista Árvore, 2013
Objetivou-se neste trabalho avaliar o substrato e a disponibilidade de água no potencial germinativo das sementes de uvaia (Eugenia pyriformis). Os substratos avaliados foram: areia (A), latossolo + areia (L + A) (1:1), latossolo + areia + cama de frango
Silvana de Paula Quintão Scalon   +1 more
doaj  

Potential use of zeolites in attenuation water deficit in cerrado latosol

open access: yesSemina: Ciências Agrárias, 2014
The improvements of hydro-physical conditions of the Cerrado Biome soils are extremely important in the view point of agricultural limitations in seasons of poor rainfall distribution and drought period.
Samara Martins Barbosa   +3 more
doaj   +1 more source

Agronomic efficiency of polymer-coated triple superphosphate in onion cultivated in contrasting texture soils

open access: yesRevista Ciência Agronômica, 2016
Information related to phosphate fertilization and coated phosphate fertilizer in onion is scarce. Thus, this study was carried out to evaluate agronomic efficiency, production and nutritional characteristics of triple superphosphate coated with polymers
Wantuir Filipe Teixeira Chagas   +4 more
doaj   +1 more source

Chromium speciation in mildly heated Cr(VI)-doped latosol soil

open access: yesJournal of Synchrotron Radiation, 2010
Cr(VI) chemical reduction in natural organic matter (NOM)-bearing latosol soil was investigated under various heating conditions at < or = 378 K. An enhanced Cr(VI) reduction rate has been observed for the reaction at 353-378 K. The effect of Fe(II) naturally occurring in the latosol soil on Cr(VI) chemical reduction is negligible compared with the ...
Yu-Ling, Wei   +5 more
openaire   +2 more sources

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