Home Publications Tree Planters' Notes Tree Planters' Notes Volume 52, Number 1 (2007) Organic Matter Amendment of Fallow Forest Tree Seedling Nursery Soils Influences Soil Properties and Biomass of a Sorghum Cover Crop

Organic Matter Amendment of Fallow Forest Tree Seedling Nursery Soils Influences Soil Properties and Biomass of a Sorghum Cover Crop

Davis, A. S., Jacobs, D. F., and Wightman, K. E. Tree Planters' Notes 52(1):4-9. 2007.

To maintain adequate soil organic matter, bareroot nurseries may add organic amendments, grow and incorporate cover crops between seedling production cycles, or both. We examined the influence of amendment of nursery soils with organic materials on both soil properties and biomass production of a sorghum (Sorghum spp.) cover crop. Level of organic matter, pH, cation exchange capacity, and concentrations of P, K, Ca, and Mg were all significantly influenced by application of chicken manure, sawdust, compost, or leaves. Above-ground biomass of the sorghum cover crop was highest with application of chicken manure at 8,700 kg ha -1 (7,670 lb ac -1) together with sawdust at 12,000 kg ha -1 (10,580 lb ac -1). We observed a negative influence of sawdust on sorghum biomass production, illustrating the importance of maintaining adequate C:N ratios. Our results suggest that integrating a combination of soil amendments and cover crops could potentially increase long-term organic matter levels, helping to sustain nursery soil productivity.


Download this file:

PDF document Download this file — PDF document, 94Kb

Details

Author(s): Anthony S. Davis, Douglass F. Jacobs, Kevyn E. Wightman

Publication: Tree Planters' Notes - Volumes 52, Number 1 (2007)

Section: 1

Volume: 52

Number: 1

Personal tools