Results 41 to 50 of about 29,990,436 (208)

Tomato Yield and Fruit Size Did Not Respond to P Fertilization of a Sandy Soil Testing Very High in Mehlich-1 P [PDF]

open access: yesHortScience, 1999
Tomato (Lycopersicon esculentum Mill.) was grown in southeastern Florida on sandy soils that tested very high in Mehlich-1 P to evaluate the yield response to P fertilization. One location was used in 1995–96, another in 1996–97. Prefertilization soil samples contained 290 (location 1) and 63
George Hochmuth   +2 more
openaire   +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

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

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

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  

Calibração de métodos de determinação de fósforo em solos cultivados sob sistema plantio direto Calibration of phosphorus extraction methods in soils cultivated under no-tillage

open access: yesRevista Brasileira de Ciência do Solo, 2008
A mudança no sistema de preparo do solo e cultivo das plantas, do sistema convencional para o plantio direto, na profundidade de amostragem e o aumento de rendimento das culturas, ao longo do tempo podem alterar os teores críticos de P, as faixas de ...
Jairo André Schlindwein   +1 more
doaj   +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

LOSS OF EXTRACTION CAPACITY OF MEHLICH-1 AND MONOCALCIUM PHOSPHATE AS A VARIABLE OF REMAINING P AND ITS RELATIONSHIP TO CRITICAL LEVELS OF SOIL PHOSPHORUS AND SULFUR [PDF]

open access: yesRevista Brasileira de Ciência do Solo, 2015
The Mehlich-1 (M-1) extractant and Monocalcium Phosphate in acetic acid (MCPa) have mechanisms for extraction of available P and S in acidity and in ligand exchange, whether of the sulfate of the extractant by the phosphate of the soil, or of the phosphate of the extractant by the sulfate of the soil. In clayey soils, with greater P adsorption capacity,
Novais, Sarah Vieira   +5 more
openaire   +4 more sources

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