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Keyword: fertilization

Effect of different forms of fungal biopreparation for increasing quality of Picea obovata seedlings

Publications Posted on: November 06, 2008
The current stage of societal development is characterized by ecological deterioration, with the application of chemicals for the prevention of pests and plant diseases giving rise to new problems in environmental protection.

Determination of the season-acclimation of photosynthetic apparatus by heat-induced changes in chlorophyll fluorescence

Publications Posted on: November 06, 2008
Resistance to damage from freezing temperatures is one of the most adaptive properties of "evergreen" (shoot bark, felloderma, needles) woody and bush plant tissues. Species-specific processes accompanying transition of chloroplasts to a frost resistant state (reduction of photochemical activity, the change of chemical structure and structural organization of thylakoid membranes) determine criterion for estimation of its seasonal dynamics.

Pesticides used in forest nursery management in the United States and the impact of the Food Quality Protection Act and other regulatory actions

Publications Posted on: November 06, 2008
The Food Quality Protection Act (FQPA) of 1996 has placed new standards on the registration and regulation of pesticides intended to protect children. The most significant changed mandated by FQPA relate to the registration process termed the "Risk Cup." This approach to risk analysis has resulted in greater restrictions on the application of pesticides used in forestry and in the lost of uses critical to natural resource management.

Propagation of dry tropical forest trees in Mexico

Publications Posted on: November 06, 2008
There is a distinct lack of technical information on the propagation of native tree species from the dry tropical forest ecosystem in Mexico. This ecosystem has come under heavy human pressures to obtain several products such as specialty woods for fuel, posts for fences and construction, forage, edible fruits, stakes for horticulture crops, and medicinal products.

Forest seedling production in Israel

Publications Posted on: November 06, 2008
Afforestation and reforestation in Israel are done on marginal lands, which consist of poor and shallow soils, with precipitation ranging from 650 mm in the north down to 200 mm in the south. Therefore, seedling quality is of great concern. All forest seedlings planted in Israel are produced by three forest nurseries which belong to the Forest Authority of Israel.

Around the world nursery inoculations and conifer establishment using Rhizopogon mycorrhizal fungi

Publications Posted on: November 06, 2008
Rhizopogon is a large genus mycorrhizal fung of particular importance to the Pinaceae. Rhizopogon species occur in both young and old forests, in diverse habitats and are present on every continent but Antarctica. Ths ecological amplitude was recognized early in the 20th century when Rhizopogon species were observed as dominant ectomycorrhizal fungi in exotic pine plantations.

Nursery practices in western Canada

Publications Posted on: November 05, 2008
Forest seedling production in British Columbia began with bareroot production in the 1930s and has evolved to be 95'/0+ containerized entering the new millennium. Until the late 1970s most production was limited to government facilities. Currently private industry produces 85% of seedlings planted in British Columbia.

Using soil test results to determine fertilizer applications

Publications Posted on: November 05, 2008
Using soil test results is a very useful practice IF the sample(s) of soil are good representations of the nursery soil.

Container longleaf pine seedling morphology in response to varying rates of nitrogen fertilization in the nursery and subsequent growth after outplanting

Publications Posted on: September 29, 2008
A fertilization rate of 2 or 3 mg nitrogen (N) per week for 20 weeks yielded longleaf pine (Pinus palustris) seedlings grown inside a greenhouse that survived well and produced good root collar diameter (RCD) growth the first year after outplanting.

Pitch canker of southern pines and recent cases in Florida, Louisiana, Mississippi, and Texas

Publications Posted on: September 29, 2008
Pitch canker disease causes a multitude of problems in all life stages of southern pines. It occurs in most southern states and can affect mature stands, plantations, seed orchards, and nurseries. It is now also known to occur in California and at least 6 other countries. Recent occurrences in the western Gulf region are typical of those farther east.

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