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Characterization and nutrient release from silicate rocks and influence on chemical changes in soil Rev. Bras. Ciênc. Solo
Silva,Douglas Ramos Guelfi; Marchi,Giuliano; Spehar,Carlos Roberto; Guilherme,Luiz Roberto Guimarães; Rein,Thomaz Adolpho; Soares,Danilo Araújo; Ávila,Fabrício William.
The expansion of Brazilian agriculture has led to a heavy dependence on imported fertilizers to ensure the supply of the growing food demand. This fact has contributed to a growing interest in alternative nutrient sources, such as ground silicate rocks. It is necessary, however, to know the potential of nutrient release and changes these materials can cause in soils. The purpose of this study was to characterize six silicate rocks and evaluate their effects on the chemical properties of treated soil, assessed by chemical extractants after greenhouse incubation. The experimental design consisted of completely randomized plots, in a 3 x 6 factorial scheme, with four replications. The factors were potassium levels (0-control: without silicate rock...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Multi-nutrient fertilizer; Nutrient available; Potassic rock; Rock powder; Soil amendment.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000300025
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Chemical functionalisation of actived charcoal - Reproducing the Terra Preta de Índios organic matter model. Repositório Alice
LINHARES, C. R.; LEMKE, J.; AMARAL, N.; AUCCAISE, R.; NOVOTNY, E. H..
2010
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Soil amendment; Biochar.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/handle/doc/875871
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Cowpea nodulation, biomass yield and nutrient uptake, as affected by biofertilizers and rhizobia, in a sodic soil amended with Acidithiobacillus - doi: 10.4025/actasciagron.v35i4.16994 Agronomy
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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Effect of Neem Kernel Cake Powder (NKCP) on Fusarium Wilt of Tomato when Used as Soil Amendment JARTS
Kimaru, S. K.; Waudo, S. W.; Monda, E.; Seif, A. A.; Birgen, J. K..
A study was conducted to investigate effect of Neem Kernel Cake Powder (NKCP) at 1.75, 3.5 and 7g rates on development of tomato Fusarium wilt in 1997 at the National Horticultural Research Center, Thika, Kenya. Inoculum density of Fusarium oxysporum f.sp. lycopersici (Sacc.) was two 14mm - diameter disks per planting hole taken from 10 day old cultures growing on PDA. Plant performance was based on shoot height and weight; stem diameter; number and weight of tomato fruits. Disease assessment was based on wilt index of shoots and length of discolouration of vascular tissues. Performance of plants grown in NKCP amended and non-amended soils was significantly (p=0.05) different (33.3 - 93.3%). Disease severity based on the wilt index (0.53-2.87) and length...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agronomy and Crop Science; Neem kernel cake powder; Fusarium oxysporum f. sp lycopersici; Tomato; Wilt; Soil amendment; Plant performance; Disease severity.
Ano: 2004 URL: http://www.jarts.info/index.php/jarts/article/view/51
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Effect of Quail Litter Biochar on Productivity of Four New Physic Nut Varieties Planted in Cadmium-Contaminated Soil Chilean J. Agric. Res.
Suppadit,Tawadchai; Kitikoon,Viroj; Phubphol,Anucha; Neumnoi,Penthip.
Biochar can improve soil structure and water retention, enhance nutrient availability and retention, ameliorate acidity, and reduce heavy metal toxicity to plant roots. In this study, a basin experiment was conducted to investigate the effects of quail litter biochar (QLB) on the availability of Cd to physic nut (Jatropha curcas L.) plants. QLB was applied to the soil in which four new physic nut varieties (Takfa, Doi Saket, Lao, and Rayong) in factorial combinations at four levels (0, 5, 10, and 15 g kg-1 soil) to soil that contained 60.8 mg Cd kg-1. After transplanting plant height and canopy radius were measured every 2-mo and the number of leaves and branches at 6-mo, while yield components and Cd residues were measured at 8-mo intervals. The...
Tipo: Journal article Palavras-chave: Adsorption; Heavy metal; Phytoremediation; Plant production; Pyrolysis; Soil amendment.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100020
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Frequency of irrigation with saline water in sugar-apple seedlings produced on substrate with polymer AGRIAMBI
Silva,Aldeir R.; Bezerra,Francisco T. C.; Cavalcante,Lourival F.; Pereira,Walter E.; Araújo,Leandro M.; Bezerra,Marlene A. F..
ABSTRACT The objective of this work was to evaluate the growth of sugar-apple seedlings under irrigation management with saline water in a substrate with soil amendment. Treatments were obtained from the arrangement between polymer doses (0, 0.2, 0.6, 1.0 and 1.2 g dm-3) and levels of irrigation water electrical conductivity (0.3, 1.1, 2.7, 4.3 and 5.0 dS m-1), associated with irrigation frequencies (daily and every alternate day), and two additional treatments to evaluate container volume (1.30 and 0.75 dm3), using a randomized complete block design, with four replicates. At 120 days after sowing, the variables substrate salinity, stem diameter, plant height, number of leaves and Dickson quality index were determined. Data were submitted to analyses of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Annona squamosa; Soil amendment; Container volume; Seedling quality.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018001200825
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Growth of aerobic rice in the presence of biochar as soil amendment: short-term effects in a clayey Rhodic Ferralsol in the Brazilian savanna (Cerrado). Repositório Alice
CARVALHO, M. T. de M.; MADARI, B. E.; BASTIAANS, L.; VAN OORT, P.; HEINEMANN, A. B.; SILVA, M. A. S. da; MAIA, A. de H. N.; MEINKE, H..
Abstract: Increasing yields in aerobic rice systems (ARS) is a challenge in the Brazilian savannah (BS), where rice is grown under unfavourable conditions characterised by well drained and low fertile soils. Management options that could increase soil water availability and nitrogen (N) use efficiency would probably lead to higher grain yields in ARS. One promising option under consideration is the use of ?biochar?, a by-product of charcoal made of hardwood, as a soil amendment. Biochar is high in resistant (pyrogenic) carbon (70 to 80% of the material), which influences some processes in soil, depending on the amount applied and its interaction with the soil properties. Yet there are no conclusive field studies that quantify the effect of hardwood biochar...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Soil amendment; Pyrogenic C; Char; Ferralsol; Pinthosol; Oryza sativa.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/982760
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Influência da escória silicatada na acidez do solo e na produtividade de grãos do arroz de terras altas. Repositório Alice
BARBOSA FILHO, M. P.; ZIMMERMANN, F. J. P.; SILVA, O. F. da..
Apesar dos elevados teores de SiO2 total geralmente encontrados nos solos brasileiros, o teor na solução do solo pode ser baixo, em consequência do processo de dessilicificação que ocorre durante a intemperização dos solos. A aplicação de escórias de processamento industrial, ricas em silicatos de cálcio, tem mostrado efeitos positivos quanto à ação corretiva da acidez do solo e do fornecimento de Si às plantas acumuladoras desse elemento, com aumentos significativos de produtividade. Conduziu-se este trabalho com o seguinte objetivo: avaliar em dois anos de cultivo sucessivos a ação corretiva, a produtividade de grãos e a absorção de Si pelo arroz de terras altas. Foram aplicadas ao solo de cerrado classificado como latossolo vermelho distroférrico de...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Arroz; Oryza sativa L; Solos de cerrado; Extratores; Silício; Corretivo de solo; Savanna soils; Extractants; Silicon; Soil amendment.
Ano: 2004 URL: http://www.alice.cnptia.embrapa.br/handle/doc/213395
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Lime and gypsum combination improves crop and forage yields and estimated meat production and revenue in a variable charge tropical soil. Repositório Alice
CRUSCIOL, C. A. C.; MARQUES, R. R.; CARMEIS FILHO, A. C. A.; SORATTO, R. P.; COSTA, C. H. M.; FERRARI NETO, J.; CASTRO, G. S. A.; PARIZ, C. M.; CASTILHOS, A. M.; FRANZLUEBBERS, A. J..
In tropical integrated crop-livestock under no-till (NT) systems, the surface application/reapplication of lime and/or gypsum can reduce re-acidification rate of the soil and improve plant nutrition, crop yields, and profitability. This study was conducted in the Brazilian Cerrado, which has dry winters, and aimed to evaluate the effects of surface application/ reapplication of lime and/or gypsum on soil improvement, plant nutrition and crop yield improvement, as well as the forage dry matter (DM) yield, estimated meat production, and economic results. The crop rotation used between November 2004 and August 2008 was as follows: peanut (Arachis hypogaea) and white oat (Avena sativa) cultivated alone (on the first and second spring/summer and autumn/winter,...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Soil acidity; Soil amendment; Integrated crop-livestock system; Profitability; Grain yield.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112149
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Management of Charcoal Rot of Mungbean by Two Trichoderma Species and Dry Biomass of Coronopus didymus Planta Daninha
JAVAID,A.; KHAN,I.H.; SHOAIB,A..
ABSTRACT: A pot experiment was carried out to check the effect of Coronopus didymus (L.) Sm. dry biomass application (1%, 2% and 3% w/w) and two species of Trichoderma (T. viride and T. aureoviride) on growth and physiology of mungbean [Vigna radiata (L.) WIlczek] under biotic stress of Macrophomina phaseolina (Tassi) Goid. Inoculation of M. phaseolina (positive control) reduced plant survival, shoot and root length as well as plant dry biomass by 22%, 52%, 61% and 64%, respectively, over the negative control (without any amendment). There was 100% plant survival in treatments with T. aureoviride alone or in combination with 1% and 2% C. didymus biomass. Likewise, T. viride in combination with 2% biomass also showed 100% plant survival. Application of 3%...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biological control; Soil amendment; Swinecress; Vigna radiata.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100323
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Nitrogen availability, water-filled pore space, and N2O-N fluxes after biochar application and nitrogen fertilization PAB
Carvalho,Márcia Thaís de Melo; Madari,Beáta Emoke; Bastiaans,Lammert; Oort,Pepijn Adrianus Johannes van; Leal,Wesley Gabriel de Oliveira; Souza,Diego Mendes de; Santos,Roberto Carlos dos; Matsushige,Iva; Maia,Aline de Holanda Nunes; Heinemann,Alexandre Bryan; Meinke,Holger.
Abstract The objective of this work was to investigate the impact of the application of wood biochar, combined with N fertilizations, on N2O-N fluxes, nitrogen availability, and water-filled pore space (WFPS) of a clayey Oxisol under rice (wet season) and common bean (dry season) succession. Manual static chambers were used to quantify N2O-N fluxes from soil immediately after a single application of wood biochar (32 Mg ha-1) and after four crop seasons with N applications (90 kg ha-1 N). Soil ammonium (N-NH4+) and nitrate (N-NO3-) availability, as well as WFPS, was measured together with N2O-N fluxes. There was no interaction between biochar and N fertilization regarding N2O-N fluxes in any of the four seasons monitored, although these fluxes were clearly...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cropping systems; Gas fluxes; Greenhouse gases; Nitrate and ammonium; Soil amendment; Soil porosity.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000901203
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การปรับปรุงดินก่อนปลูกอ้อยโดยใช้ประโยชน์จากวัชพืชในธรรมชาติ และวัสดุหรือพืชบำรุงดินชนิดต่างๆ Thai Agricultural
Santimaitree Gonkhamdee; Prasit Jaisil; Wanwipa Kaewpradit Polpinit; Tassanee Wongphet.
Tipo: PhysicalObject Palavras-chave: Sugarcane; Sugarcane production; Soil improvement; Weed; Green manure; Upland rice; Crotalaria juncea; Filter cake; Soil amendment; Fallow; Soil management; Organic matter; Total nitrogen; Available phosphorus; อ้อย; การปลูกอ้อย; การปรับปรุงดิน; วัชพืช; พืชบำรุงดิน; ข้าวไร่; ปอเทือง; วัสดุปรับปรุงดิน; กากตะกอนหม้อกรอง; การจัดการดิน; อินทรียวัตถุ; ปริมาณไนโตรเจนทั้งหมด; ปริมาณฟอสฟอรัสที่เป็นประโยชน์; การเพิ่มความอุดมสมบูรณ์ดิน; วิธีการที่เหมาะสม; การลดต้นทุนการผลิต.
Ano: 2012 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5823
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