By tapping nutrients from bedrock, red alder trees play a key role in healthy forest ecosystems.
Some plants absorb excess nitrates or oxalates from the soil and store them in plant tissues. Toxicity problems can occur in animals which feed on these plants.
A list of recommended trees and shrubs in Oregon, good for controlling erosion.
It could take years to eradicate a large patch of blackberries, because so many seeds remain in the soil. But with good timing and dedication, property owners can reduce a sprawling blackberry thicket to a few manageable stragglers
Discusses the processes of manganese (Mn) reaction in the soil, Mn movement in plants, Mn function in plants, results of studies of Mn in Oregon nursery fields, and management practices to prevent Mn deficiency in field-grown ...
Describes how to identify signs of nutrient deficiency in shade and ornamental trees. Discusses the most common soil nutrient deficiencies, types of fertilizer, and fertilization techniques. Offers a simple method, based on tree trunk diameter, for determining how much fertilizer to use.