Results 51 to 60 of about 16,072 (233)
Ciencia del Suelo, 2009 O objetivo deste trabalho foi avaliar a disponibilidade de B, Cu, Fe, Mn e Zn em solos com horizonte A antrópico (Terra Preta do Índio - TPI) da Amazônia Central com as soluções extratoras Mehlich 1 (M1), Mehlich 3 (M3) e DTPA-TEA.
Adônis Moreira +2 more
doaj
Comparação de metodologia analítica na determinação de fósforo em solos [PDF]
, 2006 TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Físicas e Matemáticas. Curso de Química.Amostras de solos foram analisadas em relação ao teor de fósforo empregando os métodos de extração Mehlich-1 utilizado rotineiramente na ...
MACARINI, Jaqueline Sachet
core
Agricultural &Environmental Letters, Volume 11, Issue 1, June 2026.Abstract Due to the craft beer industry, there is an emerging need for winter malting barley (Hordeum vulgare L.) nitrogen (N) rate recommendations in Ohio. An experiment was conducted at seven site‐years to identify the optimum spring N application rate to maximize barley grain yield while maintaining protein requirements for malting.
Laura E. Lindsey +2 more
wiley +1 more source
Frontiers in Environmental ScienceEffective phosphorus (P) management is critical for sustainable agricultural production in Florida. The state’s diverse acid-mineral soils, including Alfisols, Entisols, Spodosols, and Ultisols, exhibit distinct physiochemical properties that profoundly ...
Vimala D. Nair +2 more
doaj +1 more source
Revista Brasileira de Ciência do Solo, 2009 O uso de lâminas de resina de troca aniônica enterradas no solo permite simular, em parte, o comportamento das raízes das plantas em relação à absorção de P. Essa técnica, utilizada diretamente no solo nas mesmas condições que se cultivam as plantas, sem
Jairo André Schlindwein +1 more
doaj +1 more source
Environmental aspects of soil phosphorus testing [PDF]
, 2005 peer-reviewedSoil phosphorus testing in Ireland uses Morgan’s reagent from samples taken to 10 cm depth for agronomic recommendations. However, its suitability as an environmental indicator has been questioned in terms of sample depth and extraction ...
Casey, A., Daly, Karen M.
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Visible and near infrared spectroscopy in soil science [PDF]
, 2010 This chapter provides a review on the state of soil visible–near infrared (vis–NIR) spectroscopy. Our intention is for the review to serve as a source of up-to date information on the past and current role of vis–NIR spectroscopy in soil science.
Mouazen, Abdul Moune +3 more
core +1 more source
BioagroPhosphorus is considered the most limiting essential macronutrient for plant production in soils of tropical climates. As the chemical and physical properties of the soil influence the availability of P to crops, the use of suitable extractants can increase the precision of the results obtained in soil analysis to enable the maximization of the ...
João C. Arruda-Oliveira +4 more
openaire +1 more source
AVALIAÇÃO DA DISPONIBILIDADE DE FÓSFORO NO SOLO PARA O MILHO PELOS MÉTODOS MEHLICH-1 E MEHLICH-3
Scientia Agraria, 2009 Nos estudos de avaliação de metodologias de análise de solo, o fósforo tem sido o elemento mais estudado, fato este associado à complexidade da dinâmica do elemento no solo. A solução de Mehlich-1 vem sendo usada por muitos anos pelos laboratórios de análise de solo do Brasil, porém é um método que superestima a disponibilidade de fósforo no solo para ...
Leandro BORTOLON +2 more
openaire +2 more sources
Net mineralizable soil phosphorus cannot be measured by non‐isotopic approaches
Agricultural &Environmental Letters, Volume 11, Issue 1, June 2026.Abstract While radioisotopic pool dilution is widely regarded as the most reliable method for estimating soil phosphorus mineralization (Pmin), high costs, low throughput, and safety requirements limit its use. We evaluated the potential of non‐radioisotopic approaches to estimating net Pmin by difference before and after aerobic incubation, analogous ...
Chongyang Li, Andrew J. Margenot
wiley +1 more source