Results 51 to 60 of about 5,332 (233)

Nitrogen fertilization rates to maximize winter malting barley yield while meeting protein requirements in Ohio

open access: yesAgricultural &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

Bioavailable phosphorus across Florida’s diverse soil orders: implications for crop productivity and environmental protection

open access: yesFrontiers in Environmental Science
Effective 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

Disponibilidade de cobre para mudas de eucalipto em solos de cerrado

open access: yesRevista Brasileira de Ciência do Solo, 2010
No Brasil, com a intensificação da silvicultura clonal, o plantio de materiais genéticos mais produtivos e exigentes nutricionalmente tem aumentado o aparecimento de sintomas de deficiência de micronutrientes, principalmente de B e, mais recentemente, de
Fernando Antonio Vieira Rodrigues   +4 more
doaj   +1 more source

Net mineralizable soil phosphorus cannot be measured by non‐isotopic approaches

open access: yesAgricultural &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

Ácido ascórbico como agente redutor para determinação de fósforo por colorimetria

open access: yesCiência Rural, 2014
Em muitos laboratórios de análises de solos, o ácido 1-Amino-2-naftol-4-sulfônico (ANS) é usado como agente redutor para determinação do P por espectrometria de UV/Visível.
Lenio da Silva Santos   +2 more
doaj   +1 more source

Spatiotemporal changes in soil chemical properties when cover crops are integrated into raised, stale seedbed corn production systems

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 2, June 2026.
Abstract Commercial row crop production in the midsouthern United States is characterized by extensive application of inorganic soil inputs and management practices that contribute to degraded soil health. This study was conducted to determine if cover crops affect spatial or temporal changes in soil chemical properties in a raised, stale seedbed ...
G. Dave Spencer   +6 more
wiley   +1 more source

Analyzing soil-available phosphorus by the Mehlich-3 extraction method to recommend a phosphorus fertilizer application rate for maize production in northern Mozambique

open access: yesPlant Production Science, 2019
The available phosphorus (P) in soil is a major limiting factor for maize productivity in the Nacala corridor, Mozambique. In this study, soils were collected from three representative sites, Ribaue, Nampula, and Nacala, in the area, and each was used ...
Hisashi Nasukawa   +8 more
doaj   +1 more source

Corn response to broiler litter total cleanout frequency

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 2, June 2026.
Abstract Broiler (Gallus gallus domesticus) litter is a valuable nutrient source for corn (Zea mays L.) production in the southeastern United States; however, differences in total cleanout frequency of broiler houses may influence the agronomic value of broiler litter. A 3‐year field study was established on Decatur silt loam and Malbis sandy clay loam
Rajveer Singh, Rishi Prasad
wiley   +1 more source

Interpreting results of the Mehlich-3 ICP Soil Phosphorus Test [PDF]

open access: yes, 2003
Iowa State University (ISU) has provided soil-test interpretations for the Bray-1, Olsen, and Mehlich-3 (M3) soil phosphorus (P) tests since 1996. These tests use a colorimetric analysis method to measure the P extracted from the soil.
Mallarino, Antonio P.
core   +2 more sources

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