Results 51 to 60 of about 1,489 (161)

Fósforo disponível determinado por lâmina de resina enterrada Soil phosphorus availability determined by anionic-exchange resin membrane in the soil

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, Clesio Gianello   +1 more
doaj   +1 more source

Assessing double‐crop soybean management practices in central Illinois

Crop, Forage &Turfgrass Management, Volume 12, Issue 2, December 2026.
Giovani Preza Fontes, Dan Schaefer, Eric Miller, John Jones   +3 more
wiley   +1 more source

Adsorption and chemical extraction of phosphorus as a function of soil incubation time Adsorção de fosfato com o tempo de incubação dos solos por extratores químicos

Revista Brasileira de Engenharia Agrícola e Ambiental, 2010
The objectives of this work were to evaluate the relationship between phosphate adsorption in different mineral soil constituents of the clay fraction to determine the P recovery rate by the Mehlich-1, Mehlich-3, Bray-1 and CaCl2 0.01 mol L-1 extractants
Fábio Broggi, Alexandre C. de Oliveira, Fernando J. Freire, Maria B. G. dos S. Freire, Clístenes W. A. do Nascimento   +4 more
doaj   +1 more source

Coinoculation of Bradyrhizobium and Azospirillum to Mitigate the Effects of Drought Stress in Soybean Plants

New Zealand Journal of Agricultural Research, Volume 69, Issue 4, August 2026.
Bacteria of the genus Azospirillum have been used to mitigate negative effects of drought stress. Since there is few information on interaction of new strains of A. brasilense and soil water status, we evaluated the effects of coinoculation of A. brasilense strains (Ab‐V5/Ab‐V6 and HM053) on soybean plants grown either with (40% of field capacity) or ...
Alex Pinto de Matos, Liandra Harine Kulika, Carolina Weigert Galvão, Eduardo Augusto Agnellos Barbosa, Rafael Mazer Etto, André Belmont Pereira, Eduardo Fávero Caires   +6 more
wiley   +1 more source

P-chromophore stability of Mehlich-1 and Mehlich-3 under Braga & Defelipo or Murphy & Riley dosing methods

Revista Brasileira de Ciência do Solo
ABSTRACT The performance of colorimetric methods for P quantification has been overlooked by researchers for decades. We investigated the performance of two blue colorimetric methods for P quantification, Braga and Defelipo (B&D) and Murphy and Riley (M&R), using two commonly soil P extractants, Mehlich-1 (M1) and Mehlich-3 (M3).
Denison Queiroz Pogorzelski, Wedisson Oliveira Santos, Gabriel Grossi Pimentel, Fabiane Carvalho Ballotin, Patricia Cardoso Matias, Leonardus Vergütz   +5 more
openaire   +3 more sources

Extratores de fósforo em solos da Amazônia tratados com fertilizantes fosfatados

Revista Brasileira de Ciência do Solo, 1997
Com o objetivo de avaliar a disponibilidade de fósforo em amostras de solos representativos da Amazônia, desenvolveu-se um experimento em casa de vegetação do Centro de Energia Nuclear na Agricultura, Piracicaba (SP), de outubro de 1993 a março de 1994 ...
E. C. Brasil, T. Muraoka
doaj   +1 more source

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

Performance of Mehlich-1 and Mehlich-3 extractors in quantifying phosphorus in soils fertilized with liquid swine manure

Bioagro
Phosphorus 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, Josimar B. Silva, Emerson S. Miranda, Jholian M. Ribeiro-Santos, Oscarlina L. S. Weber   +4 more
openaire   +1 more source

Ácido ascórbico como agente redutor para determinação de fósforo por colorimetria

Ciência 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, Leandro Souza da Silva, Gustavo Griebeler   +2 more
doaj   +1 more source

Nematode Community Profiling in Organic and Conventional Spinach Systems

Plant-Environment Interactions, Volume 7, Issue 4, August 2026.
ABSTRACT Agricultural management practices play a significant role in shaping soil biological communities and ecosystem processes. Soil nematodes are valuable biological indicators of soil health because they occupy different trophic levels and are sensitive to alterations in environmental conditions.
Scolasticah K. Munene, Hannah Karuri, Mariciano Mutiga   +2 more
wiley   +1 more source