Fertilizer Requirements for Container-grown Buxus spp.

Sulfur Requirements of Container - grown Pin Oak and Japanese Maple by Jake Forrest Browder

Substrates of container-grown plants are commonly pre-plant amended with sulfated micronutrients to supply micronutrients. However, the cause for the resulting increase in growth may be due to micronutrient addition or to other factors, such as S addition or substrate acidification. Container-grown pin oak (Quercus palustris Münchh) and Japanese maple (Acer palmatum Thunb.) seedlings were grown...

Treeshelter Use in Producing Container-grown Trees

Treeshelters were used for the nursery production of Cedrus deodara Loud. (deodar cedar), Quercus ilex L. (holly oak), and Magnolia grandiflora L. (southern magnolia) trees growing in 19-liter containers. Air temperature, relative humidity, and CO, concentration were higher inside the treeshelters than outside. Trees grown inside treeshelters were 74% to 174% taller than trees grown without she...

Controlled Release Fertilizer Improves Quality of Container Longleaf Pine Seedlings

In an operational trial, increasing the amount of nitrogen (N) applied to container longleaf pine seedlings by incorporating controlled release fertilizer (CRF) into the media improved seedling growth and quality. Compared with control seedlings that received 40 mg N, seedlings receiving 66 mg N through CRF supplemented with liquid fertilizer had needles that were 4 in (10 cm) longer as well as...

Amino Acids Are an Ineffective Fertilizer for Dunaliella spp. Growth

Autotrophic microalgae are a promising bioproducts platform. However, the fundamental requirements these organisms have for nitrogen fertilizer severely limit the impact and scale of their cultivation. As an alternative to inorganic fertilizers, we investigated the possibility of using amino acids from deconstructed biomass as a nitrogen source in the genus Dunaliella. We found that only four a...

Fertilizer Effects on Attaining Vegetation Requirements