Effect of Substrate Stratification on Growth of Common Nursery Weed Species and Container-grown Ornamental Species

Substrate stratification is a method of filling nursery containers with “layers” of different substrates, or different textures of the same substrate. Recently, it has been proposed as a means to improve drainage, substrate moisture dynamics, and optimize nutrient use efficiency. Substrates layered...

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Bibliographic Details
Published in:HortTechnology (Alexandria, Va.) Va.), 2022-02, Vol.32 (1), p.74-83
Main Authors: Khamare, Yuvraj, Marble, S. Christopher, Altland, James E., Pearson, Brian J., Chen, Jianjun, Devkota, Pratap
Format: Article
Language:English
Subjects:
bittercress
blue plumbago
ligustrum
liverwort
substrate composition
weed management
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Summary:Substrate stratification is a method of filling nursery containers with “layers” of different substrates, or different textures of the same substrate. Recently, it has been proposed as a means to improve drainage, substrate moisture dynamics, and optimize nutrient use efficiency. Substrates layered with larger particle bark as the top portion and smaller particle bark as the bottom portion of the container profile would theoretically result in a substrate that dries quickly on the surface, thereby reducing weed germination, but that would also retain adequate moisture for crop growth. The objective of this study was to evaluate the effect of stratified substrates on the growth of common nursery weeds and ornamental crops. This study evaluated the use of coarser bark (
ISSN:1063-0198
1943-7714
DOI:10.21273/HORTTECH04965-21