Effect of soil amendment with dry and wet distillers grains on growth of canola and soil properties
Date
2009-02-25
Authors
Qian, P.
Schoenau, J.J.
King, T.
Fatteicher, C.
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Abstract
Controlled environment experiments were set up to evaluate the effect of applying distillers
grains to soil as organic amendments to increase soil fertility, crop growth and soil organic
matter. The two distiller grains were applied at different rates in comparison with urea fertilizer.
Canola was grown as the test crop in amended pots, and plant yield, composition and soil
properties were measured after five weeks. Both distiller grains were found to be effective soil
amendments for increasing canola biomass yield. Per unit of nitrogen added, yields were less
than that of urea, due to only a portion of the nitrogen in the amendment becoming available
over the five-week period. However, when nutrients other than nitrogen were limiting, canola
dry matter yields with organic amendment approached or exceeded that of urea, due to the ability
of the amendments to supply other nutrients in addition to nitrogen.
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Part Of
Soils and Crops Workshop