Search Results

You are looking at 91 - 100 of 732 items for :

  • "pine bark" x
  • Refine by Access: All x
Clear All
Free access

Tyler C. Hoskins, James S. Owen Jr., and Alex X. Niemiera

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

Open access

Rebecca L. Darnell, Jeffrey G. Williamson, Deanna C. Bayo, and Philip F. Harmon

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

Free access

Bert M. Cregg and Robert Schutzki

(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

Free access

Federica Larcher and Valentina Scariot

Grevillea ( Offord et al., 1998 ). The feasibility of using pine bark mixtures in substrate formulation was shown in Pinus and Cupressus by Guerrero et al. (2002) and Hernández-Apaolaza et al. (2005) . The effect of adding composted waste to a peat

Free access

Eugene K. Blythe and Donald J. Merhaut

irrigated substrate without plants to preclude the difficulties noted earlier, with repeat samples collected over time to allow a more thorough assessment. Materials and Methods Substrate. The substrate used in the study was a 25 pine bark (6

Full access

Ted E. Bilderback, Stuart L. Warren, James S. Owen Jr., and Joseph P. Albano

Many research studies have evaluated potential organic and mineral container substrate components for use in commercial potting substrates. Most studies report results of plant growth over a single production season and only a few include physical properties of the substrates tested. Furthermore, substrates containing predominantly organic components decompose during crop production cycles producing changes in air and water ratios. In the commercial nursery industry, crops frequently remain in containers for longer periods than one growing season (18 to 24 months). Changes in air and water retention characteristics over extended periods can have significant effect on the health and vigor of crops held in containers for 1 year or more. Decomposition of organic components can create an overabundance of small particles that hold excessive amounts of water, thus creating limited air porosity. Mineral aggregates such as perlite, pumice, coarse sand, and calcined clays do not decompose, or breakdown slowly, when used in potting substrates. Blending aggregates with organic components can decrease changes in physical properties over time by dilution of organic components and preserving large pore spaces, thus helping to maintain structural integrity. Research is needed to evaluate changes in container substrates from initial physical properties to changes in air and water characteristics after a production cycle.

Full access

Esendugue Greg Fonsah, Gerard Krewer, Kerry Harrison, and Michael Bruorton

successful: 1) planting in pine bark beds ≈6 to 8 inches deep with overhead irrigation, 2) planting in high organic matter (greater than 3%) spodic-type or allied sand soil series, and 3) planting in sand or loamy sand soils and amending the soil with pine

Free access

Raymond A. Cloyd, Karen A. Marley, Richard A. Larson, and Bari Arieli

of composted pine bark (35% to 45%) and coconut coir pith (20% to 30%), whereas the primary components of both SB300 Universal Professional Growing Mix and Sunshine LC1 Mix are composted pine bark (50%) and Canadian sphagnum peatmoss (75

Full access

Timothy K. Broschat and Kimberly Anne Moore

the landscape. Because landscape soils differ greatly in physical and chemical properties from the substrates used in container production, the nutritional requirements are therefore also quite different. In the southeastern United States, pine bark is

Free access

Martín Mata-Rosas and Víctor M. Salazar-Rojas

d, a high relative humidity (80% to 90%) was maintained by keeping the trays covered with plastic, translucent lids. The relative humidity was then decreased to 50% to 60%. Three different substrates were used: 1) pumice; 2) pine bark, oak charcoal