2022
DOI: 10.21273/horttech05113-22
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Effect of Substrate Stratification Without Fine Pine Bark Particles on Growth of Common Nursery Weed Species and Container-grown Ornamental Species

Abstract: Substrate stratification is a new research area in which multiple substrates, or the same substrate with differing physical properties, are layered within a container to accomplish a production goal, such as decreasing water use, nutrient leaching, or potentially reducing weed growth. Previous research using stratification with pine (Pinus sp.) bark screened to ≤1/2 or 3/4 inch reduced the growth of bittercress (Cardamine flexuosa) by 80% to 97%, whereas liverwort (Marchantia polymorpha) coverage was reduced b… Show more

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Cited by 8 publications
(10 citation statements)
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“…The following results were obtained for coarse (≥ 2 mm), medium (0.5-2 mm), and fine particles (≤ 0.5 mm in weight) (Khamare et al, 2022). Coarse particles: substrate 1 (17.3 %), substrate 2 (14.6 %), substrate 3 (14.8 %), and substrate 4 (16.4 %); medium particles: substrate 1 (16.9 %), substrate 2 (17.3 %), substrate 3 (17.2 %), and substrate 4 (19.4 %); and fine particles: substrate 1 (16.8 %), substrate 2 (11.3 %), substrate 3 (12.2 %), and substrate 4 (13.1 %).…”
Section: Grain Sizementioning
confidence: 71%
“…The following results were obtained for coarse (≥ 2 mm), medium (0.5-2 mm), and fine particles (≤ 0.5 mm in weight) (Khamare et al, 2022). Coarse particles: substrate 1 (17.3 %), substrate 2 (14.6 %), substrate 3 (14.8 %), and substrate 4 (16.4 %); medium particles: substrate 1 (16.9 %), substrate 2 (17.3 %), substrate 3 (17.2 %), and substrate 4 (19.4 %); and fine particles: substrate 1 (16.8 %), substrate 2 (11.3 %), substrate 3 (12.2 %), and substrate 4 (13.1 %).…”
Section: Grain Sizementioning
confidence: 71%
“…Stratified substrates have presented numerous opportunities to improve production sustainability through weed suppression and decreased herbicide use/cost (Khamare et al., 2022), explore fertilizer placement strategies (Ammons et al., 2022), reduce fertilizer inputs by 20% (Fields, Owen, & Altland, 2021), and lessen irrigation use by 25% compared to traditional nursery application rates (Criscione, Fields, Owen, Fultz, et al., 2022). Additionally, plant establishment and growth with regard to root biomass (Fields et al., 2022) and shoot quality (Criscione, Fields, Owen, Fultz, et al., 2022) are enhanced in stratified‐grown crops when compared to crops grown in traditional substrate systems.…”
Section: Introductionmentioning
confidence: 99%
“…Accordingly, P that is released from the fertilizer and leaches past the root zone may be adsorbed to the FSB before draining from the container. Growing containerized nursery and greenhouse crops in strategic layers of substrate, sometimes referred to as substrate stratification, has recently been proposed to decrease fertilizer requirements [30], reduce weed growth and weed seed germination [31,32], mitigate crop water stress during drought [33], and reduce peat use [34]. However, stratifying a substrate to include a P-sorbing base layer has not yet been explored.…”
Section: Introductionmentioning
confidence: 99%