Cover crop effects on soybean residue decomposition and P release in no-tillage systems of Argentina
Cover crops [CC] provide many benefits to soils but their effect on decomposition of previous crop residues and release of nutrients in continuous no-tillage soybean [Glycine max [L.] Merr.] production are little known. Our objective was to quantify CC effects on decomposition and phosphorus [P] rel...
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| Otros Autores: | , , , |
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| Formato: | Artículo |
| Lenguaje: | Español |
| Materias: | |
| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2014varela.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 001 | AR-BaUFA000697 | ||
| 003 | AR-BaUFA | ||
| 005 | 20220714143908.0 | ||
| 008 | 181208t2014 |||||o|||||00||||spa d | ||
| 999 | |c 47093 |d 47093 | ||
| 999 | |d 47093 | ||
| 022 | |a 0167-1987 | ||
| 024 | |a 10.1016/j.still.2014.05.005 | ||
| 040 | |a AR-BaUFA | ||
| 245 | 1 | 0 | |a Cover crop effects on soybean residue decomposition and P release in no-tillage systems of Argentina |
| 520 | |a Cover crops [CC] provide many benefits to soils but their effect on decomposition of previous crop residues and release of nutrients in continuous no-tillage soybean [Glycine max [L.] Merr.] production are little known. Our objective was to quantify CC effects on decomposition and phosphorus [P] release from soybean residue using litterbags. Three CC species [oat, Avena sativa L.; rye, Secale cereal L.; and rye grass, Lolium multiflorum L.] and a no CC control were evaluated. Temperature, moisture content, microbial biomass and microbial activity were measured in the surface 2cm of soil and residues. Cover crops increased soybean residue decomposition slightly both years [8.2 and 6.4 percent]. Phosphorus release from soybean residue did not show any significant differences. Cover crops increased microbial biomass quantity and activity in both soil and residue samples [p less than 0.001, p=0.049 for soil and residue microbial biomass; p=0.060, p=0.003 for soil and residue microbial activity, respectively]. Increased residue decomposition with CC was associated with higher soil and residue microbial biomass and activity, higher near-surface [0-2cm] moisture content [due to shading] and soil organic carbon enrichment by CC. Even though CC increased soybean residue decomposition [233kgha-1], this effect was compensated for by the annual addition of approximately 6500kgha-1 of CC biomass. This study demonstrated another role for CC when calibrating models that simulate the decomposition of residues in no-tillage systems. | ||
| 650 | |2 Agrovoc |9 26 | ||
| 653 | 0 | |a AGRICULTURAL WASTES | |
| 653 | 0 | |a AMINO ACIDS | |
| 653 | 0 | |a ARGENTINA | |
| 653 | 0 | |a BIOMASS | |
| 653 | 0 | |a COVER CROP | |
| 653 | 0 | |a CROP PRODUCTION | |
| 653 | 0 | |a CROPS | |
| 653 | 0 | |a DECOMPOSITION | |
| 653 | 0 | |a MICROBIAL ACTIVITIES | |
| 653 | 0 | |a MOISTURE DETERMINATION | |
| 653 | 0 | |a NITROGEN FIXATION | |
| 653 | 0 | |a NO-TILLAGE SYSTEMS | |
| 653 | 0 | |a NUTRIENT CYCLING | |
| 653 | 0 | |a NUTRIENTS | |
| 653 | 0 | |a PHOSPHORUS | |
| 653 | 0 | |a PHOSPHORUS RELEASE | |
| 653 | 0 | |a PLANTS [BOTANY] | |
| 653 | 0 | |a RESIDUE DECOMPOSITION | |
| 653 | 0 | |a SOIL ORGANIC CARBON | |
| 653 | 0 | |a SOIL ORGANIC CARBON | |
| 653 | 0 | |a SOILS | |
| 653 | 0 | |a SOYBEAN | |
| 653 | 0 | |a SOYBEAN RESIDUES | |
| 653 | 0 | |a SOYBEAN [GLYCINE MAX [L.] MERR.] | |
| 653 | 0 | |a ZERO TILLAGE | |
| 700 | 1 | |a Varela, María Florencia |9 38296 | |
| 700 | 1 | |a Scianca, Carlos María |9 46497 | |
| 700 | 1 | |a Taboada, Miguel Angel |9 9839 | |
| 700 | 1 | |9 6390 |a Rubio, Gerardo | |
| 773 | |t Soil and Tillage Research |g vol.143 (2014), p.59-66 | ||
| 856 | |u http://ri.agro.uba.ar/files/intranet/articulo/2014varela.pdf |i En reservorio |q application/pdf |f 2014varela |x MIGRADOS2018 | ||
| 856 | |u http://www.elsevier.com/ |x MIGRADOS2018 |z LINK AL EDITOR | ||
| 942 | 0 | 0 | |c ARTICULO |
| 942 | 0 | 0 | |c ENLINEA |
| 976 | |a AAG | ||