Results 101 to 110 of about 16,072 (233)

Métodos de extração de fósforo e potássio no solo sob sistema plantio direto Soil phosphorus and potassium extractant in soils under no tillage

Ciência Rural, 2009
A análise de fósforo e potássio no solo, nos Estados do Rio Grande do Sul e de Santa Catarina, é realizada com a solução de Mehlich-1, e os estudos de seleção de métodos de análise para esses elementos foram feitos apenas para o sistema de cultivo ...
Leandro Bortolon, Jairo André Schlindwein, Clesio Gianello   +2 more
doaj  

Yields and qualities of pigeonpea varieties grown under smallholder farmers’ conditions in Eastern and Southern Africa [PDF]

, 2007
Pigeonpea is one of the few crops with a high potential for resource-poor farmers due to its complementary resource use when intercropped with maize.
Adu-Gyamfi, J.J., Høgh-Jensen, H, Kamalongo, D., Myaka, F.A., Ngwira, A., Odgaard, R., Sakala, W.D., Vesterager, J.M.   +7 more
core  

Micronutrients for cacao: Availability classes in two soil layers

Soil Science Society of America Journal, Volume 90, Issue 3, May/June 2026.
Abstract Efficient management of soil micronutrients is crucial for the yield and sustainability of cacao (Theobroma cacao L.), especially in tropical regions. However, specific availability classes for copper (Cu), iron (Fe), manganese (Mn), and zinc (Zn), extracted by Mehlich‐1, had not yet been established for the crop in Brazil. This study presents,
Edson da Silva de França, Jerusa Schneider, José Aridiano Lima de Deus, Dario Ahnert, José Olímpio de Souza Júnior   +4 more
wiley   +1 more source

Glomalin production in Atlantic Forest: Effects of soil properties and plant families

Soil Science Society of America Journal, Volume 90, Issue 3, May/June 2026.
Abstract Glomalin, a glycoprotein produced by arbuscular mycorrhizal fungi (AMF), contributes to soil aggregation, carbon sequestration, and nutrient cycling. We present the first comprehensive assessment of environmental factors associated with glomalin availability, measured as easily extractable (easily extractable glomalin‐related soil protein [EE ...
Amanda Ponce de Leon, Yumi Oki, Walisson Kenedy‐Siqueira, Carla Rago, Gabriel Arvelino de Paula, Geraldo W. Fernandes   +5 more
wiley   +1 more source

Evaluation of extractability of different extractants for zinc and copper in soils under long-term fertilization

Plant, Soil and Environment, 2015
We aimed to evaluate the extractability of different extractants for zinc (Zn) and copper (Cu) in soils of long-term field experiments covering different agro-ecological zones of India.
A.K. Pradhan, K.S. Beura, R. Das, D. Padhan, G.C. Hazra, B. Mandal, N. De, V.N. Mishra, K.B. Polara, S. Sharma   +9 more
doaj   +1 more source

A rainfall simulation study on the relationships between soil test P versus dissolved and potentially bioavailable particulate phosphorus forms in runoff [PDF]

, 2005
Runoff from clayey soils often contains abundant particulate phoshorus (PP), part of which may solubilize in surface waters. Monitoring losses of potentially bioavailable forms of PP is expensive, calling for other ways to predict them.
Aura, Erkki, Uusitalo, Risto
core   +2 more sources

Soybean yield performance in oxisols with varying morphological and physicochemical characteristics

Soil Science Society of America Journal, Volume 90, Issue 3, May/June 2026.
Abstract Soybean (Glycine max (L.) Merril) yield in tropical high‐altitude regions is strongly influenced by soil physical and chemical attributes, particularly in highly weathered oxisols, where variability among suborders may affect crop performance.
Anderson Barbosa Evaristo, Reimário de Castro Rodriguês, Alceu Linares Pádua Jr, Fabrício da Silva Terra, Caique Menezes de Abreu, Débora Sampaio Mendes, Adriene Caldeira Batista, Fernanda de Aguiar Coelho, Ricardo Siqueira da Silva   +8 more
wiley   +1 more source

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

, 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

Realistic species loss has little effect on local resource depletion and competitive pressure in a temperate wet meadow

Journal of Ecology, Volume 114, Issue 5, May 2026.
Realistic biodiversity loss in a species‐rich wet meadow had limited effects on community competitive ability. Phytometers revealed strong competition compared to competition‐free gaps, but similar pressure across richness levels (1–27 species). Resource depletion poorly explained responses, highlighting that dominance, seasonal dynamics and biotic ...
Eva Janíková, Aleš Lisner, Marie Konečná, Markéta Applová, Jan Lepš, Jules Segrestin   +5 more
wiley   +1 more source

Disponibilidade de fósforo em solos cultivados com arroz irrigado por alagamento no Rio Grande do Sul Phosphorus availability in soils with flooded rice in Rio Grande do Sul, Brazil

Revista Brasileira de Ciência do Solo, 2008
Nos solos cultivados com arroz irrigado por alagamento no Estado do Rio Grande do Sul, a maior fração do P inorgânico está ligada a óxidos de Fe. Espera-se que um extrator que tenha a capacidade de extrair o P adsorvido a estes óxidos possa ser mais ...
Gustavo Krüger Gonçalves, Egon José Meurer   +1 more
doaj   +1 more source