Results 61 to 70 of about 2,357 (208)

Photosynthetic Traits Underlying Yield Differences in Irrigated and Rainfed Soybean Systems in the Mississippi Delta

Plant-Environment Interactions, Volume 7, Issue 4, August 2026.
ABSTRACT Understanding photosynthetic processes under field conditions is critical for identifying physiological determinants of seed yield (SY) in soybean. This study evaluated leaf gas exchange and chlorophyll fluorescence traits in seven soybean cultivars grown under irrigated (IR) and rainfed (RF) environments in the Mississippi Delta.
Srinivasa R. Pinnamaneni, Isabel M. Lima, Jean A. Beacorn   +2 more
wiley   +1 more source

Phosphorus extracted by ion exchange resins and mehlich-1 from oxisols (latosols) treated with different phosphorus rates and sources for varied soil-source contact periods [PDF]

, 2013
Despite the large number of studies addressing the quantification of phosphorus (P) availability by different extraction methods, many questions remain unanswered.
Roberto Ferreira Novais, Villani, Ecila Mercês de Albuquerque, Novais, Roberto Ferreira, Ecila Mercês de Albuquerque Villani, Villani,Ecila Mercês de Albuquerque, Irio Fernando de Freitas, Novais,Sarah Vieira, Freitas,Irio Fernando de, Novais,Roberto Ferreira, Sarah Vieira Novais, Novais, Sarah Vieira, Freitas, Irio Fernando de   +11 more
core   +1 more source

Extração de cobre e de zinco por soluções multielementares em solos do sul do Brasil Copper and zinc extracted by multielement solution for Southern Brazilian soils

Ciência Rural, 2010
As quantidades extraídas de cobre (Cu) e de zinco (Zn) pelas soluções de HCl 0,1mol L-1 (HCl) foram comparadas com as extraídas pelas soluções de Mehlich-1 (M1) e de Mehlich-3 (M3).
Leandro Bortolon, Clesio Gianello
doaj  

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

Frontiers 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, Dinesh Phuyal, Lilit Vardanyan   +2 more
doaj   +1 more source

Ensembling Crop Models and Multi Criteria Analysis to Unlock Bioenergy From Marginal Lands: A Scenario‐Based Assessment From Italy

GCB Bioenergy, Volume 18, Issue 8, August 2026.
Multi‐Criteria Analysis to identify marginal land on which three crops (Safflower, castor bean, and Ethiopian mustard) were simulated with two process‐based models (DSSAT, ARMOSA) under two different agronomical management minimums (rainfed and no fertilization) and low input (half‐water and half‐nitrogen).
Claudio Russo, Valerio Cirillo, Nausicaa Pollaro, Stefania Pindozzi, Elena Cervelli, Roberto Rea, Giovanni Pica, Andrea Chiodini, Alessia Perego, Fabio Terribile, Albino Maggio, Davide Cammarano   +11 more
wiley   +1 more source

End‐of‐season corn stalk analysis as a tool to fine‐tune potassium and nitrogen management

Agronomy Journal, Volume 118, Issue 4, July/August 2026.
Abstract Corn (Zea mays L.) requires proper nutrient management for optimal growth, and tissue testing plays an important role in refining recommendations. Corn stalk nitrate test (CSNT) is used to evaluate nitrogen (N) management; however, a comparable plant‐based diagnostic tool for potassium (K) is lacking. This study evaluated extractants for stalk‐
Gabriela Andrade L. Mengez, Gerson L. Drescher, Trenton L. Roberts, Jason P. Kelley, Michael P. Popp, Alden D. Smartt, Qamar Sarfaraz, Lincon Stefanello   +7 more
wiley   +1 more source

Extratores e disponibilidade de micronutrientes em Terra Preta de Índio da Amazônia Central Extractants and availability of micronutrients in Central Amazonian dark earth soil

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, Wenceslau Geraldes Teixeira, Gilvan Coimbra Martins   +2 more
doaj  

Calibração de métodos de análise de fósforo e resposta do feijão ao fósforo no sulco [PDF]

Pesquisa Agropecuária Brasileira, 2002
O feijoeiro e o milho apresentam respostas significativas ao P, mas deve-se avaliar adequadamente sua disponibilidade no solo para recomendar adubação fosfatada.
Leo Nobre de Miranda, Juscelino Antonio de Azevedo, Jeanne Christine Claessen de Miranda, Antonio Carlos Gomes   +3 more
doaj   +1 more source

Soil sample timing and depth effect on soil health assessment in Mid‐South US row‐crop production systems

Soil Science Society of America Journal, Volume 90, Issue 4, July/August 2026.
Abstract Spatial and seasonal variability in soil properties influences soil analysis results, but their impact on soil health assessment has not been well investigated. We evaluated how soil health indicators and scores were affected by soil sampling time (spring, summer, fall, and winter) and depth (0–5, 5–10, and 10–15 cm).
Katherine S. French, Gerson L. Drescher, Prashasti Agarwal, Trenton L. Roberts, Kristofor R. Brye, Alden D. Smartt, Gabriela A. L. Mengez, Maria Paula R. do Prado, Qamar Sarfaraz   +8 more
wiley   +1 more source

Disponibilidade de cobre para mudas de eucalipto em solos de cerrado

Revista 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, Nairam Félix de Barros, Júlio César Lima Neves, Víctor Hugo Alvarez V., Roberto Ferreira Novais   +4 more
doaj   +1 more source