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Registros recuperados: 22
Primeira ... 12 ... Última
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Aislamiento y caracterización bioquímica de metabolitos producidos por rizobacterias que solubilizan fosfato. Colegio de Postgraduados
Paredes Mendoza, Marianela.
El empleo de bacterias solubilizadoras de fosfato (BSP) para la solubilización de distintas rocas fosfatadas y de otras fuentes de fósforo es una alternativa para incrementar la cantidad de P disponible para las plantas. Se aislaron 147 BSP de la raíz y rizoplano de diferentes plantas cultivadas. El medio de cultivo denominado Medio Mínimo para Solubilización de Fosfato Colegio de Postgraduados con MgCl (MMSFCP-Mg) fue el más eficiente, debido a que en medio sólido se observaron halos de solubilización de hasta 3.8 cm a los catorce días, y en medio líquido se determinaron hasta 380 mg mL-1 de fosfato soluble a los seis días. Veintisiete de las mejores cepas fueron seleccionadas con base en la eficiencia de solubilización de fosfato...
Palavras-chave: Acidos orgánicos; Fosfatasas; Solubilización de fosfato; Inmunodetección; Roca fosfórica; Bacterias solubilizadoras de fosfato; Enfófitas; Organic acids; Phosphatases; Phosphate solubilization; Immunodetection; Rock phosphate; Phosphate solubilizing; Bacteria; Endophyte; Doctorado; Edafología.
Ano: 2010 URL: http://hdl.handle.net/10521/245
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Effect of Cover Crops, Lime and Rock Phosphate on Maize (Zea mays L.) in an Acidic Soil of Northern Guinea Savanna of Nigeria JARTS
Jibrin, J. M.; Chude, V. O.; Horst, W. J.; Amapu, I. Y..
Phosphorus deficiency is the major constraint to maize production in acidic soil of Heipang (9°38’, 8°53’) in Northern Guinea Savanna of Nigeria. The soil is high in sesquioxides and soluble aluminum and has high phosphate sorption capacity. To address this problem, a field trial was conducted between 1996-1997 to assess the responses of six tropical cover crops and maize to lime and applied rock phosphate and to evaluate the effect of these treatments on the performance and P nutrition of succeeding maize. Results of the trial showed that planting Chamaecrista rotundifolia, Lablab purpureus, Mucuna pruriens, and maize-Chamaecrista rotundifolia intercrop reduced the leaf Al concentration of succeeding maize by more than 38%. Although none of the six cover...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant Production P deficiency; Rock phosphate; Liming; Cover crops; Maize yield.
Ano: 2002 URL: http://www.jarts.info/index.php/jarts/article/view/11
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Effect of organic and inorganic P fertilizers on sustainability of soil fertility and grain yield in a rice-pulse system International Rice Research Institute
Selvi, D.; Mahimairaja, S.; Santhy, P.; Rajkannan, B..
p.41-43
Palavras-chave: Phosphorus fertilizers; Diammonium phosphate; Rock phosphate; Green manures; Soil fertility; Residual effects; Application rates; Crop yield; Cost benefit analysis; Sequential cropping; Black gram.
Ano: 2003 URL: http://hdl.handle.net/123456789/1247
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EFFECTIVENESS OF THE APPLICATION OF ARBUSCULAR MYCORRHIZA FUNGI AND ORGANIC AMENDMENTS TO IMPROVE SOIL QUALITY AND PLANT PERFORMANCE UNDER STRESS CONDITIONS J. Soil Sci. Plant Nutr.
Medina,Almudena; Azcón,Rosario.
Plant growth is limited in arid and/or contaminated sites due to the adverse conditions coming from heavy metal (HM) contamination and/or water stress. Moreover, soils from these areas are generally characterised by poor soil structure, low water-holding capacity, lack of organic matter and nutrient deficiency. In order to carry out a successful re-afforestation, it is necessary to improve soil quality and the ability of plants species to resist this harsh environment. The symbiosis with arbuscular mycorrhizal (AM) fungi has been proposed as one of the mechanisms of plant heavy metal tolerance and water stress avoidance. On the other hand, addition of organic amendments to the soil can reverse degradation of soil properties. Agro-waste residues such as dry...
Tipo: Journal article Palavras-chave: Arbuscular mycorrhiza (AM); Fungi; Organic amendment; Heavy metal (HM) contamination; Water stress; Drought; Organic matter; Rock phosphate; Revegetation; Bioremediation; Aspergillus niger; Phosphate solubilization.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162010000100009
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Eficiencia do fosfato natural de Gafsa em um latossolo de cerrado com a cultura da soja. Infoteca-e
SOUSA, D. M. G. de; REIN, T. A.; LOBATO, E..
bitstream/item/102876/1/pesq-02.pdf
Tipo: Outras publicações técnicas (INFOTECA-E) Palavras-chave: Latossolo vermelho-escuro; Dark-red latosol.; Cerrado; Fosfato de Rocha; Glycine Max; Soja.; Rock phosphate; Soybeans..
Ano: 1999 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/545859
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Fertilizer trial on corn and sorghum Thai Agricultural
Ring Meesawat; Dumri Thawornmas; Tianchai Suvanvej; Pradit Boonampol; Mongkol Panichkul.
7 tables
Palavras-chave: Corn; Maize; Sorghum; Fertilizer trials; Nitrogen fertilizers; Rock phosphate; Livestock manures; Soil chemicophysical properties; Nitrogen uptake; Soil types; Growth; Yields; ข้าวโพด; ข้าวฟ่าง; การทดสอบปุ๋ย.
Ano: 1977 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3926
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Gafsa rock phosphate and triple superphosphate for dry matter production and P uptake by corn Scientia Agricola
Corrêa,Rossini Mattos; Nascimento,Clístenes Williams Araújo do; Souza,Silvana Keely de Sá; Freire,Fernando José; Silva,Gleibson Barbosa da.
Crops in general make poor use of phosphorous fertilizer and, as a result, recommended rates and production costs are very high. Phosphorus can be made more readily available to plants by proper management of phosphate fertilization, selecting both, type of fertilizer and application method. This study was carried out to evaluate the efficiency of the natural Gafsa rock phosphate and the triple superphosphate on dry matter production and P uptake by corn plants cultivated in a greenhouse. Fertilizers were applied localized and broadcast/incorporated on to two soils with contrasting phosphorus capacity factors (PCF). Rock phosphate broadcast application was as efficient as triple superphosphate in increasing corn plant dry matter in the Tropudult, with...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rock phosphate; Phosphate fertilization; Phosphorus fixation.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000200011
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Integrated research program on soil and fertilizer requirement for increasing yield of corn and sorghum Thai Agricultural
Amnat Suwanarit; Aschan Sukthumrong; Tawatchai Na Nagara; Jongruk Chanchareonsook; Pusit Wiwutwongwana; Siriya Dithipen; Lawal Powpaichit; Pachanee Malai; Sorasith Vacharotayan.
23 tables
Palavras-chave: Corn; Maize; Sorghum; Varieties; Nitrogen fertilizers; Phosphate fertilizers; Mixed fertilizers; Rock phosphate; Hyperphosphate; Intercropping; Yields; ข้าวโพด; ข้าวฟ่าง; การใส่ปุ๋ย; ความอุดมสมบูรณ์ของดิน; การเพาะปลูก; การจัดการดิน.
Ano: 1976 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3866
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Integrated research program on soil and fertilizer requirement for increasing yields of corn and sorghum Thai Agricultural
12 ill., 17 tables
Palavras-chave: Corn; Maize; Sorghum; Legumes; Fertilizers; Nitrogen fertilizers; Phosphate fertilizers; Rock phosphate; Varieties; Intercropping; Yields; Nitrogen uptake; Soil surveys; ข้าวโพด; ข้าวฟ่าง; ปุ๋ย; ความอุดมสมบูรณ์ของดิน; การเพาะปลูก; การจัดการดิน.
Ano: 1974 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3798
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Integrated research program on soil and fertilizer requirement for increasing yields of corn and sorghum Thai Agricultural
Amnat Suwanarit; Aschan Sukthumrong; Jongruk Chanchareonsook; Chairerk Suwannarat; Sukum Chotechuangmanirat.
10 ill., 2 tables
Palavras-chave: Corn; Maize; Sorghum; Fertilizers; Ammonium fertilizers; Rock phosphate; Nitrogen fertilizers; Spacing; Plant population; Nutrient uptake; Yields; ข้าวโพด; ข้าวฟ่าง; การใส่ปุ๋ย; ความอุดมสมบูรณ์ของดิน; การเพาะปลูก; การจัดการดิน.
Ano: 1980 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4021
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Integrated research program on soil and fertilizer, requirement for increasing yields of corn and sorghum Thai Agricultural
Amnat Suwanarit; Aschan Sukthumrong; Jongruk Chanchareonsook; Kanchana Laosrichareonsakul; Sakkasem Soonthornphat; Nuntarat Supakamnerd; Lawal Powpaichit; Sorasith Vacharotayan.
2 ill., 23 tables
Palavras-chave: Corn; Maize; Sorghum; Fertilizers; Nitrogen fertilizers; Phosphate fertilizers; Rock phosphate; Mixed fertilizers; Intercropping; Cropping systems; Soil types; Nutrient uptake; Growth; Yields; ข้าวโพด; ข้าวฟ่าง; การทดสอบปุ๋ย; ความอุดมสมบูรณ์ของดิน; การเพาะปลูก; การจัดการดิน.
Ano: 1977 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3927
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Integrated research program on soil and fertilizer requirement for increasing yields of corn and sorghum Thai Agricultural
Amnat Suwanarit; Aschan Sukthumrong; Paiboon Rattanaprateep; Jongruk Chanchareonsook; Sakkasem Soonthornphat; Nuntarat Supakamnerd; Siriya Dithipen; Pongmanee Thongbai; Sukum Chotechuangmanirat; Aniruth Potichan; Sorasith Vacharotayan.
7 ill., 24 tables
Palavras-chave: Corn; Maize; Sorghum; Varieties; Nitrogen fertilizers; Phosphate fertilizers; Rock phosphate; Ammonium; Nitrate fertilizers; Yields; Intercropping; Cropping systems; Korat soil; Alkali soil; Nutrient uptake; ข้าวโพด; ข้าวฟ่าง; การใส่ปุ๋ย; ความอุดมสมบูรณ์ของดิน; การเพาะปลูก; การจัดการดิน.
Ano: 1979 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3980
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Non-conventional P sources for zebu cows in Brazil Scientia Agricola
Vitti,D.M.S.S.; Abdalla,A.L.; Lopes,H.O.S.; Pereira,E.A.; Meirelles,C.F..
To evaluate non-conventional phosphorus sources, a group of 400 Nellore cows mantained under pasture received a mineral mixture with different P sources (group I: superphosphate - 500 ppm P; group II: superphosphate - 340 ppm P plus rock phosphate Patos 160 ppm P; group III: superphosphate 340 ppm P plus dicalcium phosphate 160 ppm P; group IV - dicalcium phosphate 500 ppm P). There were no differences in pregnancy rate, calving rate and calving interval. A fluorine deposition in bone was observed for the treatments with superphosphate and rock phosphate (66.92 ± 15.53; 69.97 ± 6.5 and 64.05 ± 3.35% respectively for group I, II and III). Superphosphate was almost as good dicalcium phosphate to provide phosphorus for grazing cows and there was a potentially...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phosphorus; Cattle; Rock phosphate; Fluorine.
Ano: 1995 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161995000100014
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Phosphorus supplying capacity of rice soils in northeast Thailand and the Philippines and amendments by rock phosphate and rice straw International Rice Research Institute
Suriya-Arunroj, Duangjai.
168 leaves : ill. Thesis (M.S.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice soils; Phosphorus; Soil amendments; Rock phosphate; Rice straw; Thailand; Philippines.
Ano: 1992 URL: http://hdl.handle.net/123456789/828
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Resposta de Andropogon gayanus cv. Planaltina a inoculação de micorrizas arbusculares e a fertilização com fosfato de rocha. Infoteca-e
COSTA, N. de L.; PAULINO, V. T..
No presente trabalho avaliou-se os efeitos da inoculação de MA e da aplicação de fosfato de rocha sobre o rendimento de forragem e composição química de Andropogon gayanus cv. Planaltina.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Mycorrhizahe; Feed grasses; Andropogon Gayanus; Capim Andropogon; Fosfato de Rocha; Gramínea Forrageira; Micorriza; Rock phosphate.
Ano: 1999 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/344617
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Rhizosphere pH and phosphorus forms in an Oxisol cultivated with soybean, brachiaria grass, millet and sorghum Scientia Agricola
Schoninger,Evandro Luiz; Gatiboni,Luciano Colpo; Ernani,Paulo Roberto.
Plants have shown different responses to fertilization with rock phosphate, including responses through alteration of the attributes of rhizospheric soil. The objective of this study was to evaluate soil pH alterations and alterations in the contents of forms of phosphorus in the rhizosphere of soil fertilized with rock phosphate as a result of cultivation of species of plants. An experiment was developed under greenhouse conditions to evaluate alterations in the pH and in the forms of phosphorus in the rhizosphere of an Oxisol fertilized with rock phosphate and cultivated with four species. Treatments consisted of the cultivation of four species of soybean - Glycine max (L.) Merrill, brachiaria grass - Brachiaria brizantha Hochst Stapf, millet -...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilian savanna soils; Phosphorus fractionation; Cover plants; Rock phosphate; Rhizospheric soil.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000400004
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Soil fertility and fertilizer research Thai Agricultural
Dumri Thawornmas; Pradit Boonampol; Ring Meesawat; Boonnom Unkasem; Thianchai Arayangkoon; Mongkol Panichkul; Dissapan Thammapirume.
5 tables
Palavras-chave: Corn; Maize; Sorghum; Rock phosphate; Phosphorus; Nitrogen fertilizers; Varieties; Yields; ข้าวโพด; ข้าวฟ่าง; ความอุดมสมบูรณ์ของดิน; การใส่ปุ๋ย.
Ano: 1975 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3838
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Soil fertility studies on corn Thai Agricultural
Amnat Suwanarit; Chairerk Suwannarat; Sukum Chotechuangmanirat; Nuntarat Supakamnerd.
13 ill., 2 tables
Palavras-chave: Corn; Maize; Spacing; Fertilizers; Soil fertility; Chicken manure; Rock phosphate; Phosphate fertilizers; Nutrient uptake; Yields; Quality; ข้าวโพด; ความอุดมสมบูรณ์ของดิน; ระยะปลูก; ปุ๋ยมูลไก่; ร็อกฟอสเฟท; ปุ๋ยฟอสเฟต; การทดสอบดิน; การทดสอบพืช.
Ano: 1981 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4067
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Soil fertility studies on maize and sorghum Thai Agricultural
Pradit Boonampol; Ring Meesawat; Samrit Chaiwanakupt.
Palavras-chave: Corn; Maize; Sorghum; Fertilizers; Rock phosphate; Soil fertility; ข้าวโพด; ข้าวโพดฝักสด; ข้าวฟ่าง; ความอุดมสมบูรณ์ของดิน; การใส่ปุ๋ย; ร็อกฟอสเฟท.
Ano: 1979 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3978
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Studies on the role of green manure legumes for corn and sorghum cropping system Thai Agricultural
Aschan Sukthumrong; Sukum Chotechuangmanirat; Jongruk Chanchareonsook.
5 tables
Palavras-chave: Corn; Maize; Sorghum; Legumes; Green manures; Fertilizers; Rock phosphate; Cropping systems; Yields; Economic analysis; Soil properties; ข้าวโพด; ข้าวฟ่าง; ระบบการปลูกพืช; พืชตระกูลถั่ว; ปุ๋ยพืชสด.
Ano: 1981 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4070
Registros recuperados: 22
Primeira ... 12 ... Última
 

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