Tillage management for doublecropped soybean grown in narrow and wide row width culture

Leaving residues on the soil surface and deep tillage may reduce the severity of yield-reducing, plant water stress on the southeastern Coastal Plain. For narrow (75 cm) row width culture, little is known about the seed-yield response of doublecropped soybean [Glycine max (L.) Merr.] to surface till...

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Bibliographic Details
Published in:	Crop science Vol. 38; no. 3; pp. 755 - 762
Main Authors:	Frederick, J.R. (Clemson University, Florence, SC.), Bauer, P.J, Busscher, W.J, McCutcheon, G.S
Format:	Journal Article
Language:	English
Published:	Madison, WI Crop Science Society of America 01-05-1998 American Society of Agronomy
Subjects:	Agronomy. Soil science and plant productions ANCHURA Biological and medical sciences Coastal plains CONDUITE DE LA CULTURE CROP MANAGEMENT CROP RESIDUES CROP YIELD Cropping systems. Cultivation. Soil tillage CULTIVATION CULTIVO CULTIVO SECUENCIAL CULTURE SEQUENTIELLE DEEP TILLAGE DISCING DOUBLE CROPPING DROUGHT STRESS ESPACEMENT ESPACIAMIENTO ESTRES DE SEQUIA Fundamental and applied biological sciences. Psychology General agronomy. Plant production GLYCINE MAX GRAINE LABRANZA PROFUNDA LARGEUR LLUVIA Management MANEJO DEL CULTIVO Planting PLUIE PRATIQUE CULTURALE RAIN RENDEMENT DES CULTURES RENDIMIENTO DE CULTIVOS RESIDU DE RECOLTE RESIDUOS DE COSECHAS ROW SPACING SEEDS SEMILLA SEQUENTIAL CROPPING Soil conservation Soil surfaces Soybean Soybeans SPACING STRESS DU A LA SECHERESSE Tending. Growth control Tillage Tillage. Tending. Growth control TRAVAIL PROFOND DU SOL WATER STRESS WIDTH United States North America America Cultural practice Monocotyledones Double cropping Glycine max Water stress Vegetation succession Cereal crop Depth Plowing Grain legume Plain Leguminosae Gramineae Dicotyledones Angiospermae Spermatophyta Yield component Triticum aestivum
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Summary:	Leaving residues on the soil surface and deep tillage may reduce the severity of yield-reducing, plant water stress on the southeastern Coastal Plain. For narrow (75 cm) row width culture, little is known about the seed-yield response of doublecropped soybean [Glycine max (L.) Merr.] to surface tillage or deep tillage. We conducted a 2-yr field study on a Goldsboro sandy loam soil to (i) determine the seed-yield response of doublecropped soybean to surface tillage and deep tillage when grown using 19- and 76-cm-row widths and (ii) determine the effects of surface tillage and deep tillage on branch and mainstem yield components. Doublecropped soybean was grown following winter wheat (Triticum aestivum L.) harvest using all combinations of surface tillage (disked or no surface tillage), spring deep tillage (deep tilled or no deep tillage before soybean planting), row width culture (production practices for row widths of 19 or 76 cm), and fall deep tillage (no deep tillage or deep tilled before wheat planting) treatments. Averaged across years and all other treatments the soybean grown with the 19-cm-row width had a 53 and 83% greater seed yield than the soybean grown with the 76-cm-row width in the disked and no-surface-tillage plots, respectively. When deep tilled, soybean yields were consistently higher with no surface tillage, compared with disking, only when the 19-cm-row width was used. Seed-yield increases due to deep tillage were greatest when plots were deep tilled before planting both crops and when no surface tillage and the narrow row width culture were used. Across all treatments and years, seed yield was highly correlated with seed number per square meter (r
Bibliography:	1997092553 F01 F08 South Carolina Agric. Exp. Stn. Technical Contribution no. 4253.
ISSN:	0011-183X 1435-0653
DOI:	10.2135/cropsci1998.0011183X003800030023x