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| Stamford,Newton P; Moura,Patrícia M; Lira Júnior,Mário A; Santos,Carolina Etienne de RS; Duenhas,Luíza Helena; Gava,Carlos Alberto T. |
| Fertilizer application may promote significant changes in soil reaction and on the availability of important nutrients for plants. The utilization of rock biofertilizers is a practical process that reduces energy consumption and increases nutrient availability in soils. In a field experiment, the effect of biofertilizers produced with phosphate and potash rocks plus Acidithiobacillus inoculation were evaluated on the chemical attributes of an Argisoil from the São Francisco Valley, Pernambuco State, Brazil, after melon cultivation. The experiment was arranged in a factorial 3²+2 scheme in randomized block design, with four replicates. Two sources of P biofertilizer (PB) and K biofertilizer (KB) were applied in the same doses recommended for simple... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucumis melo; Acidithiobacillus; Apatite; Biotite; Available P and K; Sulfur oxidation. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000400008 |
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| Stamford,Newton Pereira; Simões Neto,Djalma Eusébio; Freitas,Ana Dolores Santiago de; Oliveira,Emídio Cantídio Almeida; Oliveira,Wagner Silva; Cruz,Leila. |
| ABSTRACT The deployment of soluble fertilizers has been one of the most commonly applied agricultural practices in the bid to increase crop yield. However, the production of soluble fertilizers has a considerable economic cost and consumes a substantial amount of energy. In general, soil organic matter provides the nutrients needed for plant growth in organic agriculture. However, these nutrients are not sufficient if the best yield is to be obtained. The aim of our field experiment was to evaluate the effectiveness of phosphate and potassic sources (rocks, bio-fertilizers and soluble fertilizers) based on several sugarcane characteristics and soil attributes. Our experiment was conducted over two consecutive years, and we assessed the effect of using... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acidithiobacillus; Organic fertilization; Organic matter; Soil nutrients; Sulfur oxidation. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000100029 |
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| Stamford, Newton Pereira; Universidade Federal Rural de Pernambuco; Silva Junior, Sebastião da; Universidade Federal Rural de Pernambuco; Santos, Carolina Etienne de Rosália e Silva; Universidade Federal Rural de Pernambuco; Freitas, Ana Dolores Santiago de; Universidade Federal Rural de Pernambuco; Lira junior, Mário de Andrade; Universidade Federal Rural de Pernambuco; Barros, Maria de Fátima Cavalcanti; Universidade Federal Rural de Pernambuco. |
| Sodic soils require application of amendments as gypsum and organic matter. Many types of compost have been tested in sodic soils reclamation; however, these materials often do not provide satisfactory pH reduction. A recent study reported effective effects applying mixture of gypsum and sulfur inoculated with Acidithiobacillus in sodic soils with high pH and exchangeable sodium, though the effects on plant parameters were not evaluated. The present study was conducted to verify the effects of BPK rock biofertilizers on nodulation, biomass yield and nutrient uptake in cowpea compared with mineral fertilizer after sodic soil amendment. The BPK biofertilizers and PK mineral fertilizer were applied at different rates, and plants were inoculated with effective... |
| Tipo: Pesquisa em casa de vegetação |
Palavras-chave: Soil salinity Sodic soil Nitrogen fixation Vigna unguiculata; Soil amendment; Sulfur-gypsum interaction; Sulfur oxidation; Sulfur oxidizing bacteria. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16994 |
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