Microbial activity of soil cultivated with corn in association with weeds under different fertility management systems

Interactions between weeds and soil microorganisms can give them a competitive advantage over crops. This study assessed the biomass and microbial activity of soil cultivated with weeds and corn (Zea mays L.) in monoculture and in competition under different fertility management systems. The experim...

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Autores principales:	Melo,Christiane, Fialho,Cíntia, Faria,Autieres, Neto,Manoel, Saraiva,Douglas, Costa,Maurício, Ferreira,Lino, Ferreira,Francisco Affonso
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2014
Materias:	Calcium and magnesium silicate soil microorganism/weed interaction interference limestone microbial biomass soil metabolic quotient Zea mays
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000400015
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spelling	oai:scielo:S0718-583920140004000152018-10-01Microbial activity of soil cultivated with corn in association with weeds under different fertility management systemsMelo,ChristianeFialho,CíntiaFaria,AutieresNeto,ManoelSaraiva,DouglasCosta,MaurícioFerreira,LinoFerreira,Francisco Affonso Calcium and magnesium silicate soil microorganism/weed interaction interference limestone microbial biomass soil metabolic quotient Zea mays Interactions between weeds and soil microorganisms can give them a competitive advantage over crops. This study assessed the biomass and microbial activity of soil cultivated with weeds and corn (Zea mays L.) in monoculture and in competition under different fertility management systems. The experiment considered four soil fertility management systems (calcium and magnesium silicate + fertilization; limestone + fertilization; no correction source + fertilization; no correction source + no fertilization) and 12 crops (five competition arrangements between corn and weeds Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster, lpomoea grandifolia (Dammer) O’Donell, Conyza canadensis (L.) Cronquist, Hyptis suaveolens (L.) Poit., and Bidens pilosa L. plus the six species in monoculture and bare soil. After 60 d coexisting in a greenhouse, soil samples were collected to determine microbial biomass, respiration rate, and metabolic quotient. Soils cultivated with B. pilosa and Z. mays+U. brizantha showed higher microbial biomass. Cultivation of B. pilosa and Z. mays+H. suaveolens provided greater energy efficiency to maintain microbial cells. Biomass and microbial activity were altered by plant species, coexistence, and soil fertility management. Calcium and magnesium silicate, as well as limestone similarly influenced biomass and respiration rate of soil cultivated with most species. For some crops, the Si source was better than limestone to promote lower specific activity of the edaphic microbiota. The change in the microbial activity of soil can be a strategy used by the species to minimize the effects of competition.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.74 n.4 20142014-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000400015en10.4067/S0718-58392014000400015
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Calcium and magnesium silicate soil microorganism/weed interaction interference limestone microbial biomass soil metabolic quotient Zea mays
spellingShingle	Calcium and magnesium silicate soil microorganism/weed interaction interference limestone microbial biomass soil metabolic quotient Zea mays Melo,Christiane Fialho,Cíntia Faria,Autieres Neto,Manoel Saraiva,Douglas Costa,Maurício Ferreira,Lino Ferreira,Francisco Affonso Microbial activity of soil cultivated with corn in association with weeds under different fertility management systems
description	Interactions between weeds and soil microorganisms can give them a competitive advantage over crops. This study assessed the biomass and microbial activity of soil cultivated with weeds and corn (Zea mays L.) in monoculture and in competition under different fertility management systems. The experiment considered four soil fertility management systems (calcium and magnesium silicate + fertilization; limestone + fertilization; no correction source + fertilization; no correction source + no fertilization) and 12 crops (five competition arrangements between corn and weeds Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster, lpomoea grandifolia (Dammer) O’Donell, Conyza canadensis (L.) Cronquist, Hyptis suaveolens (L.) Poit., and Bidens pilosa L. plus the six species in monoculture and bare soil. After 60 d coexisting in a greenhouse, soil samples were collected to determine microbial biomass, respiration rate, and metabolic quotient. Soils cultivated with B. pilosa and Z. mays+U. brizantha showed higher microbial biomass. Cultivation of B. pilosa and Z. mays+H. suaveolens provided greater energy efficiency to maintain microbial cells. Biomass and microbial activity were altered by plant species, coexistence, and soil fertility management. Calcium and magnesium silicate, as well as limestone similarly influenced biomass and respiration rate of soil cultivated with most species. For some crops, the Si source was better than limestone to promote lower specific activity of the edaphic microbiota. The change in the microbial activity of soil can be a strategy used by the species to minimize the effects of competition.
author	Melo,Christiane Fialho,Cíntia Faria,Autieres Neto,Manoel Saraiva,Douglas Costa,Maurício Ferreira,Lino Ferreira,Francisco Affonso
author_facet	Melo,Christiane Fialho,Cíntia Faria,Autieres Neto,Manoel Saraiva,Douglas Costa,Maurício Ferreira,Lino Ferreira,Francisco Affonso
author_sort	Melo,Christiane
title	Microbial activity of soil cultivated with corn in association with weeds under different fertility management systems
title_short	Microbial activity of soil cultivated with corn in association with weeds under different fertility management systems
title_full	Microbial activity of soil cultivated with corn in association with weeds under different fertility management systems
title_fullStr	Microbial activity of soil cultivated with corn in association with weeds under different fertility management systems
title_full_unstemmed	Microbial activity of soil cultivated with corn in association with weeds under different fertility management systems
title_sort	microbial activity of soil cultivated with corn in association with weeds under different fertility management systems
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000400015
work_keys_str_mv	AT melochristiane microbialactivityofsoilcultivatedwithcorninassociationwithweedsunderdifferentfertilitymanagementsystems AT fialhocintia microbialactivityofsoilcultivatedwithcorninassociationwithweedsunderdifferentfertilitymanagementsystems AT fariaautieres microbialactivityofsoilcultivatedwithcorninassociationwithweedsunderdifferentfertilitymanagementsystems AT netomanoel microbialactivityofsoilcultivatedwithcorninassociationwithweedsunderdifferentfertilitymanagementsystems AT saraivadouglas microbialactivityofsoilcultivatedwithcorninassociationwithweedsunderdifferentfertilitymanagementsystems AT costamauricio microbialactivityofsoilcultivatedwithcorninassociationwithweedsunderdifferentfertilitymanagementsystems AT ferreiralino microbialactivityofsoilcultivatedwithcorninassociationwithweedsunderdifferentfertilitymanagementsystems AT ferreirafranciscoaffonso microbialactivityofsoilcultivatedwithcorninassociationwithweedsunderdifferentfertilitymanagementsystems
_version_	1714205341360586752

Microbial activity of soil cultivated with corn in association with weeds under different fertility management systems

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