formulations of elemental S incorporated into the substrate reduced pH by 1–2 units below non-amended controls over a duration of 84 d while having no adverse effect on blueberry ( Vaccinium × ‘Northcountry’) growth in a peat and pine bark substrate. The
concentrations in unfertilized plots, we found that the presence of cypress mulch significantly increased soil K concentrations above that of unmulched plots in Expt. 2 ( Table 1 ). Water-extractable K concentrations in cypress, melaleuca, pine bark, and pine
Abstract
The response of Chrysanthemum morifolium Ram. to drench applications of ancymidol was reduced if the potting media contained high quantities of ground pine bark. Aqueous movement of ancymidol was restricted by pine bark and sand in leaching tests. Bioassays with Setaria italica (L.) Beauv. indicated that the immobile ancymidol fraction in upper segments of pine bark and sand columns retained excellent biological activity.
Abstract
High correlation coefficients were found between plant growth (dry weight accumulation) and both leaf N content and soil solution nitrates, while low correlation coefficients were found between soil nitrates and plant growth of 3 holly cultivars, Ilex crenata Thunb. cvs. Helleri and Rotundifolia and Ilex cornuta Lindl. et Paxt. cv. Burfordi, grown in 3 liter container at 200, 300, 400 and 500 ppm nitrogen. Shoot growth of ‘Helleri’ and ‘Burfordi’ was not increased by N levels higher than 300 ppm, while 400 ppm was optimal for ‘Rotundifolia.’
. Materials and methods Nine locations, including three each of tilled full-sun, nontilled full-sun, and nontilled shaded sites were included in the first year of the study. At each site, eastern redcedar (wood and bark), pine bark nuggets (bark), pine (bark
container industries. Tree-derived mulches such as chipped eastern red cedar, pine bark mini-nuggets ( Pinus sp.), and douglas fir ( Pseudotsuga menziesii ) have widespread availability, reasonable consistency, and are generally accepted by consumers
prefer to use a simple and easy method for applying nutrients to nursery stock. The nutrient treatments used in this study were pine bark mulch without fertilizer (control), Osmocote 15N–3.9P–10K used at the labeled rate of 114.2 g broadcast over the top
water through pine bark-based substrates was not uniform as a result of the formation of channels in dry regions of the substrate profile. It is not clear how this uneven movement of applied irrigation water affects the leaching of mineral nutrients from
availability. In the southeastern United States, pine bark is the common soil amendment used to increase soil organic matter and is typically incorporated into the top soil layer ( Williamson et al., 2018 ). Without soil amendments, blueberry growth and yields
(pine bark, cypress mulch, hardwood mulch, and color-enhanced ground recycled pallets) over 3 years. We chose to focus on organic mulches because their superiority over inorganic mulches has been well documented in the literature ( Chalker-Scott, 2007