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| Format: | Artículo científico |
| Language: | en |
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Universidade Federal do Paraná
2017
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| Online Access: | https://www.redalyc.org/articulo.oa?id=99553122003 |
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Table of Contents:
- ARBUSCULAR MYCORRHIZAS IN SUGAR CANE UNDER DIFFERENT PLANTING SYSTEMS AND SOURCES OF NITROGEN Jadson Belem de Moura Diego André Ribeiro Luiz César Lopes Filho Rodrigo Fernandes de Souza Leonnardo Cruvinel Furquim Agrociencias Pre mycorrhizal fungi sprout e d seedlings Azospirillum brasilense biological nitrogen fixation This study aimed to evaluate the density of spores and mycorrhizal colonization in roots of sugarcane varieties (RB86 - 7515, CTC - 4 and CTC - 15), under planting systems , being the planting of stem portions and pre - sprouted seedlings (PSS ) along with 3 sources of nitrogen : granular fertilizer , leaf application and inoculation with diazotrophic bacteria ( Azospirillum brasilense ) . The experiment was deployed on the experimental campus of the Evangelical School of Goianésia, and was collected soil samples for spore count after the first cut. The experimental design was arranged in factorial 3x2x3 in randomized blocks with su bdivided plot s using 4 repetitions per treatment , where factor 1 was represented by varieties , fa c tor 2 by planting systems and fac tor 3 by nitrogen sources . The planting of PSS associated with foliar fertilization and A. brasiliense presented better colonization that in PSS with granular fertilizer and stem portions with leaf fertilizer and via inoculant. The granular fertilizer showed increased amounts of spores over the foliar fertilization and inoculation of Azospirillum brasilense , the planting system of stem portions presented greater quantity of s pores over the planting of PSS, i t is worth mentioning that approximate results of spore density, mycorrhizal colonization and productivity without adding granular fertilizer are satisfact ory for reducing the use of fertilizers. 2017 artículo científico 1519-1125 https://www.redalyc.org/articulo.oa?id=99553122003 en http://www.redalyc.org/revista.oa?id=995 Scientia Agraria application/pdf Universidade Federal do Paraná Scientia Agraria (Brasil) Num.3 Vol.18