Cornstalk Decomposition on a Till‐Planted Watershed<sup>1</sup>

Alberts, E. E.; Shrader, W. D.

doi:10.2134/agronj1980.00021962007200050004x

Cited by 6 publications

(4 citation statements)

References 4 publications

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“…While C content declined as C compounds in the residue were being used as energy sources by soil microorganisms N, P, and S content did not change suggesting that little N, P, and S would be available to a growing crop during the first year of cob decomposition. These results differ from those of Alberts and Shrader (1980) who reported a decline in N and P content for stalk and leaf residue during the first year of decomposition. In contrast, cob K content declined with most of the loss in K occurring during the first two sampling periods when biological activity was limited by low soil temperatures.…”

Section: Discussioncontrasting

confidence: 99%

Corn Cob Residue Carbon and Nutrient Dynamics during Decomposition

2011

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Section: Discussioncontrasting

confidence: 99%

Corn Cob Residue Carbon and Nutrient Dynamics during Decomposition

2011

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“…2). Comparable decomposition rates were reported for wheat straw (Smith and Douglas 1971) and com residue (Alberts and Shrader 1980), which are analogous to rye and sorghum, respectively.…”

Section: Decomposition and Nutrient Dynamics In Littermentioning

confidence: 76%

Nutrient Budgets and Internal Cycling of N, P, K, Ca, and Mg in Conventional Tillage, No‐Tillage, and Old‐Field Ecosystems on the Georgia Piedmont

Stinner¹,

Crossley²,

Odum³

et al. 1984

Ecology

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Nutrient budgets (N, P, K, Ca, and Mg) were developed for conventional—tillage, no—tillage, and old—field systems. Data for the budgets were collected over a 2—yr period, with grain sorghum as a main season crop followed by a cover crop of winter rye. Nutrient uptake by crops, weeds, and old—field plants was the largest flow in each system. Leaching losses were small compared to input from fertilizer (except for Ca). Leaching losses of N and Ca was greatest in conventional—tillage, followed by no—tillage systems, and least in the old field. No significant differences were observed between conventional— and no—tillage systems for leaching losses of P, K, and Mg, although leaching of P and K was significantly less in the old field than in either crop system. No—tillage and old—field systems maintained a larger litter component on the soil surface compared to conventional—tillage systems. Decomposition of litter and subsequent mineralization of nutrients appeared to be more rapid in conventional—tillage systems than in either no—tillage or old—field systems. Insect consumers mobilized a small portion of total nutrient flux within each system. In all three systems, nutrients were retained in litter and plant biomass, not lost through leaching.

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“…Other approaches include direct sampling of unenclosed residues (Alberts and Shrader 1980), and CO 2 monitoring and/or 14 C or 13 C measurements (Azam et al 1985;Balesdent and Balabane 1996;Rochette et al 1999), in field or laboratory conditions. Past litterbag studies of corn residue decomposition in the field have used mixes of different plant parts (Parker 1962;Ghidey and Alberts 1993;Gregorich and Ellert 1994;Zaborsky 1995).…”

mentioning

confidence: 99%

Decomposition of grain-corn residues (Zea mays L.): A litterbag study under three tillage systems

Burgess¹,

Mehuys²,

Madramootoo³

2002

Can. J. Soil. Sci.

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Burgess, M. S., Mehuys, G. R. and Madramootoo, C. A. 2002. Decomposition of grain-corn residues (Zea mays L.): A litterbag study under three tillage systems. Can. J. Soil Sci. 82: 127-138. This study was undertaken to obtain litterbag decomposition data for grain-corn residues in eastern Canadian conditions, to determine tillage and/or depth effects on residue mass loss, and to compare decomposition patterns for the different plant parts that constitute the residue (cobs, stems, leaves, husks). Mesh bags containing residues were buried or left on the soil surface in grain-corn plots under no-till, reduced tillage, and conventional tillage, and retrieved over a 2-yr period. Data were obtained separately for each plant part, then used to calculate pooled totals for all residues combined, for all residues except cobs, or for stems and leaves only, to facilitate comparison with studies based on different residue mixes. Buried residues lost mass faster than surface residues. Despite low overwinter temperatures, residue mass decreased substantially between placement in November and first sampling in mid-May. Surface litterbag residues lost 20% of initial mass during this period, residues buried at 5 cm lost 33%, and those at 20 cm lost 41%. Corresponding losses from mid-May to mid-October were 21, 42 and 32%, respectively. Mass loss was fastest for buried leaves, husks and stems (89-98% loss in 2 yr) and slowest for surface cobs (32% loss in 2 yr). On a voulu évaluer les effets du système de travail du sol et/ou de l'emplacement des résidus (en surface versus enfouis dans le sol) sur la décomposition des résidus, et comparer la décomposition des différentes parties de la plante qui constituent les residus. Des sacs-filet contenant des résidus furent soit enterrés ou laissés à la surface du sol dans des parcelles cultivées conventionnellement, avec travail du sol réduit ou en semis direct, et furent prélevés sur une période de 2 ans. La perte de masse fut évaluée séparément pour les rafles, tiges, feuilles et spathes. Les pertes de masse ont aussi été calculées pour tous types de résidus confondus, pour tous types sauf les rafles, et pour tiges et feuilles seulement afin de faciliter les comparaisons avec des études qui utilisaient différents mélanges de ces résidus. Les résidus enterrés ont perdu leur masse plus rapidement que ceux en surface. On a constaté une importante perte de masse entre le début de l'expérience en novembre et le premier échantillonnage à la mi-mai, malgré des températures faibles pendant cette période. Les résidus en sacs-filet placés en surface (0 cm) ont perdu 20% de leur masse initiale durant cette période; les résidus enterrés à 5 cm ont perdu 33%, et ceux à 20 cm ont perdu 41%. Les pertes entre la mi-mai et la mi-octobre étaient de 21%, 42% et 32% à 0, 5, et 20 cm de profondeur. La perte de masse était plus rapide pour les feuilles, spathes et tiges enfouies (de 89 à 98% de perte en 2 ans), et plus lente pour les rafles laissées en surface (32% de perte en 2 ans).

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Cornstalk Decomposition on a Till‐Planted Watershed¹

Cited by 6 publications

References 4 publications

Corn Cob Residue Carbon and Nutrient Dynamics during Decomposition

Corn Cob Residue Carbon and Nutrient Dynamics during Decomposition

Nutrient Budgets and Internal Cycling of N, P, K, Ca, and Mg in Conventional Tillage, No‐Tillage, and Old‐Field Ecosystems on the Georgia Piedmont

Decomposition of grain-corn residues (Zea mays L.): A litterbag study under three tillage systems

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Cornstalk Decomposition on a Till‐Planted Watershed1

Cited by 6 publications

References 4 publications

Corn Cob Residue Carbon and Nutrient Dynamics during Decomposition

Corn Cob Residue Carbon and Nutrient Dynamics during Decomposition

Nutrient Budgets and Internal Cycling of N, P, K, Ca, and Mg in Conventional Tillage, No‐Tillage, and Old‐Field Ecosystems on the Georgia Piedmont

Decomposition of grain-corn residues (Zea mays L.): A litterbag study under three tillage systems

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Cornstalk Decomposition on a Till‐Planted Watershed¹