Results 41 to 50 of about 18,308,386 (211)

Disponibilidade de zinco para milho pelos extratores Mehlich-1, Mehlich-3 e DPTA em solos de Minas Gerais, na presença e ausência de calagem Zinc availability to maize in different soils with and without liming determined by Mehlich-1, Mehlich-3 and DTPA [PDF]

open access: yes, 2010
No Brasil, diversos extratores químicos são utilizados na determinação de Zn disponível para as plantas, destacando-se Mehlich-1 e DTPA. Este trabalho foi realizado com o objetivo de estudar a disponibilidade de Zn em solos de Minas Gerais em função de ...
Dias, Luiz Eduardo   +11 more
core   +1 more source

Short‐term agronomic consequences of industrial hemp incorporation into traditional corn–soybean rotations

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 4, December 2026.
Abstract Kentucky producers have sought to add industrial hemp (Cannabis sativa L.) for grain, fiber, and/or floral material to their cropping systems since hemp's legalization in the 2018 Farm Bill. This study sought to quantify hemp's impact on ecosystem services provisioned by the traditional corn (Zea mays L.)–soybean (Glycine max (L.) Merr ...
Rebecca K. McGrail   +5 more
wiley   +1 more source

Availability of iron, manganese, zinc and copper in soil by Mehlich-1, Mehlich-3 and DTPA [PDF]

open access: yes, 2019
Estudos de correlação e calibração são necessários para determinar a eficiência de um extrator em estimar a disponibilidade dos nutrientes no solo.
Faria, Arlindo Ferreira de
core  

Nitrogen, potassium, and irrigation management for cotton production on the Texas High Plains

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 4, December 2026.
Abstract Nitrogen (N) is the most commonly limiting nutrient in cotton (Gossypium hirsutum L.) production and is important for lint yield and physiological development, but yield response is difficult to predict due to the influence of water and residual soil nitrate‐N (NO3−‐N).
Amee R. Ausec   +3 more
wiley   +1 more source

Interpretation of the avalilabre phosphorus by Mehlich-1 and Mehlich-3 extractant solution in soils of the Rio Grande do Sul State, Brazil [PDF]

open access: yes, 2008
As soluções extratoras multielementares possibilitam avaliar a disponibilidade de vários nutrientes de plantas no mesmo extrato; dentre estes o P merece especial atenção. As soluções Mehlich-1 (M1) e Mehlich-3 (M3) enquadram-se nesta categoria.
Bortolon, Leandro, Gianello, Clesio
core   +1 more source

Fecal degradation and nutrient loss of manure from cattle offered four bermudagrass cultivars

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 4, December 2026.
Abstract Bermudagrass (Cynodon spp.) is one of the most common warm‐season perennial grasses utilized in the southeastern United States for pasture or stored forage. However, there is a paucity of data evaluating the fecal nutrient losses overtime by cattle grazing different bermudagrass cultivars.
Justin C. Burt   +4 more
wiley   +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

open access: yesCiência 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  

Extraction methods and availability of micronutrients for wheat under a no-till system with a surface application of lime Métodos de extração e disponibilidade de micronutrientes para o trigo cultivado em plantio direto com calagem na superfície

open access: yesScientia Agricola, 2010
Micronutrient availability can be affected by the increase of the soil pH due to surface liming. A field trial was carried out on a loamy, kaolinitic, thermic Typic Hapludox at Ponta Grossa, Paraná State, Brazil.
Adriel Ferreira da Fonseca   +2 more
doaj   +1 more source

Avaliação da eficiência dos extratores Mehlich-1 e Mehlich-3 em diferentes solos do Estado do Rio de Janeiro. [PDF]

open access: yes, 1999
O objetivo do presente trabalho foi avaliar a disponibilidade de fósforo utilizando-se os extratores Mehlich-1 e Mehlich-3. O delineamento utilizado foi o inteiramente casualizado, com 3 repetições, num fatorial 4x4x2, empregando-se amostras superficiais
PEREIRA, M. G.   +4 more
core  

Análisis geoestadístico de macroelementos, microelementos y metales pesados extraídos con Mehlich-3 en una microparcela de viñedo [PDF]

open access: yes, 2023
A geostatistical analysis of macroelements (P, K, Ca, Mg), microelements (Fe, Mn, Cu, Zn) and heavy metals (Cd, Cr, Ni, Pb) extracted with the solution Mehlich-3 was carried out at the microplot scale in a vineyard of the Ribeiro area, Ourense, Spain ...
Lado, Marcos   +8 more
core   +1 more source

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