Sulfur Gypsum
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Recovery of a dystrophic Red Latosol (Oxisol) and pasture as a function of gypsum in the Cerrado biome
ABSTRACT This study was conducted to evaluate the chemical effects of gypsum on the soil and on the recovery of a pasture established with palisade grass (Urochloa brizantha) in a Cerrado biome region. A randomized block experimental design with six treatments and four replications was adopted. Treatments consisted of five levels of gypsum (0, 450, 900, 1800
R. Bras. Zootec.. Publicado em: 2017-04
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2. Uso do gesso agrícola nos solos do cerrado.
ABSTRACT: The Cerrdao soils show deficience of calcium and toxicity of aluminum inthe subsurface, what impedes the growth of the roots under the the rapidleaching of calcium and sulface into the subsurface results in the decrease of these problems and therefore increases the growth of the roots. results from field experiments with annual and perennial crops
Planaltina. Publicado em: 2011
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3. Gesso agrícola na produção de milho e soja em solo de alta fertilidade e baixa acidez em subsuperfície em plantio direto
There are doubts about the conditions in which a favorable effect of the application of gypsum on the yield of grain crops can be expected. In order to evaluate the influence of gypsum application in the soil chemical attributes, in mineral nutrition of maize (Zea mays L.) and soybean (Glycine max L. Merrill) yield in no-till system, an experiment was carrie
Publicado em: 2009
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4. Doses de nitrogênio e de enxofre para a recuperação de pastagem com capim-braquiária: atributos de parte aérea, raízes e fertilidade do solo / Nitrogen and sulfur rates for a Signal grass pasture recovery: forage aboveground and roots, and soil fertility attributes
Fertilizer application has been essential to pastures establishment, maintenance and recovery, whereas sulfur supply may be inadequate for grasses receiving high nitrogen rates. The objectives were to study the effects of combined nitrogen and sulfur rates in a degrading Signal grass (Brachiaria decumbens) pasture, by evaluating productive, morphological, ph
Publicado em: 2009
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5. ATRIBUTOS QUÍMICOS DE UM LATOSSOLO E OMPORTAMENTO DO TRIGO E DA SOJA NO SISTEMA PLANTIO DIRETO INFLUENCIADOS PELA APLICAÇÃO E REAPLICAÇÃO DE GESSO AGRÍCOLA PONTA GROSSA PR
Gypsum application provides chemical changes on soil that can improve crop yield. This study was carried out to investigate the gypsum application and reapplication effects on soil chemical attributes, mineral nutrition and wheat and soybean grain yields under a no-till system. A field experiment was established in 1998 on a dystrophic clayey Rhodic Hapludox
Publicado em: 2008
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6. Bradyrizobium e biofertilizantes de rochas com acidithiobacillus e gesso no feijão caupi em solos salinos sódicos
Um experimento em casa-de-vegetação foi realizado visando avaliar os efeitos de biofertilizantes de rochas fosfatada e potássica, no desenvolvimento e absorção de nutrientes por feijão caupi em um solo salino-sodico, após a adição de enxofre inoculado com Acidithiobacillus (S*) e gesso (G) em diferentes doses (0,0; 0,8; 1,6; 2,4 and 3,2 t ha-1) e pr
Publicado em: 2008
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7. Avaliação e disponibilidade de enxofre em solos cultivados com cana-de-açúcar em Pernambuco / Sulfur evaluation and availability in soils cultivated with sugarcane in Pernambuco
Burning sugarcane for harvesting causes expressive volatization of the sulfur in the plant material, worsening possible nutrient deficiencies over the short and medium time-scales. This research aimed to generate data for using mineral gypsum from Araripe-PE region as a sulfur source for sugarcane. Five field experiments were installed in soils of different
Publicado em: 2007
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8. Agronomic efficiency of nitrogen sources in sugarcane with green harvest system. / Eficiência agronômica de fontes nitrogenadas na cultura da cana-de-açúcar em sistema de colheita sem despalha a fogo.
The present work was advanced by a field experiment that was conducted from September 2000 to May 2001 in Piracicaba cane region with the variety SP 80-1842 in the third sugarcane cut, tilled in Arenic Kanhaplodults and with mechanical harvest without burning. The aim of this study was to evaluate the agronomic efficiency from nitrogen sources in sugarcane h
Publicado em: 2002
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9. Microbial succession and mineral leaching in an artificial coal spoil.
An artificial pyritic coal spoil was prepared and examined over a period of 1.5 years for changes in the population of various physiological varieties of bacteria and also for mineral leaching. Heterotrophic bacteria were the first to dominate the spoil, acquiring a population of 10(7) cells per g within 2 weeks. Bacteria capable of utilizing choline sulfate