Forage production of reclaimed mined lands as influenced by nitrogen fertilization and mulching practice

Fertilizer nitrogen (N) management and other cultural practices used in reclamation can have a significant effect on the successful revegetation of mined lands. Repeated fertilization of revegetated lands creates management and economic concerns. Nitrogen fertilizer was broadcast at 67 kg ha(-1) yr(...

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Bibliographic Details
Published in:Journal of range management 1991-07, Vol.44 (4), p.382-384
Main Authors: Schuman, G.E. (Agricultural Research Service, USDA, High Plains Grasslands Research Station, Cheyenne, WY), Taylor, E.M. Jr, Rauzi, F
Format: Article
Language:English
Subjects:
ABONADO ANUAL
ABONADO FRACCIONADO
ALIMENT POUR ANIMAUX
APPORT FRACTIONNE
BIOMASA
BIOMASSE
COBERTURA CON PAJA
CUBRIMIENTO DEL SUELO
DOSE D'APPLICATION
DOSIS DE APLICACION
Forage production
Forbs
FUMURE ANNUELLE
GRAMINEAE
GRAMINEAS
GRAMINEE
NITRATE D'AMMONIUM
NITRATO DE AMONIO
Nitrogen
Nutrient management
PAILLAGE
PAILLIS
PIENSOS
PRODUCCION
PRODUCTION
Reclamation
RECUPERATION DES SOLS
REGENERACION VEGETAL
REHABILITACION DE TIERRAS
RESTAURATION COUVERTURE VEGETALE
Revegetation
Seed management
Straw
Straw mulches
Stubble
Stubble mulching
TERRE
TIERRAS
WYOMING
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Summary:Fertilizer nitrogen (N) management and other cultural practices used in reclamation can have a significant effect on the successful revegetation of mined lands. Repeated fertilization of revegetated lands creates management and economic concerns. Nitrogen fertilizer was broadcast at 67 kg ha(-1) yr(-1) for 4 years and at 268 ha(-1) for 1 year on revegetated mined land to evaluate N management effects on forage production. Seeded grass production over 5 years did not exhibit consistent increases for the single N fertilizer application compared to the 4 annual applications. Although the single, higher N fertilization treatment only produced significantly greater forage in 3 instances compared to the lower annual fertilization treatment, it would result in a significant savings in application costs. Seeded grass production was higher and annual forb production lower when established using a standing grain stubble mulch compared to a crimped straw mulch. A single, higher application rate of nitrogen and a stubble mulch are recommended because of their production, management, and economic benefits
ISSN:0022-409X
2162-2728
DOI:10.2307/4002404