Nutrient Supply from Organic Amendments Applied to Unvegetated Soil, Lettuce and Orchardgrass

The nutrient-supplying potentials of poultry manure compost (PM), feather meal (FM), alfalfa meal (AA) and vermicastings (VC), and an unamended control in a growth room experiment were measured. The amendments were applied at rates equivalent to 200, 400, and 800 kg total N ha super(-1) to a soil of...

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Published in:Impact assessment and project appraisal 2006-02, Vol.86 (1), p.21-21
Main Authors: Hammermeister, A M, Astatkie, T, Jeliazkova, E A, Warman, PR, Martin, R C
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creator Hammermeister, A M
Astatkie, T
Jeliazkova, E A
Warman, PR
Martin, R C
description The nutrient-supplying potentials of poultry manure compost (PM), feather meal (FM), alfalfa meal (AA) and vermicastings (VC), and an unamended control in a growth room experiment were measured. The amendments were applied at rates equivalent to 200, 400, and 800 kg total N ha super(-1) to a soil of low fertility. Amendments and combined root and shoot samples were finely ground for total C and total N determination using an automated LECO super( registered )CNS Analyzer. The experimental units were pots placed at four location blocks in a growth chamber and treatment combinations were completely randomized in each block. It was found that the VC treatments supported the highest lettuce biomass production.
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title Nutrient Supply from Organic Amendments Applied to Unvegetated Soil, Lettuce and Orchardgrass
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