搜索结果: 1-5 共查到“林学 Betula pendula”相关记录5条 . 查询时间(0.078 秒)
Effects of nitrogen on growth properties and phenology of silver birch (Betula pendula Roth)
nitrogen silver birch stress phenology of budbreak leaf-fall frost heaving
2015/4/14
Effects of stress caused by differentiated inputs of nitrogen after the application of ammonium nitrate (NH4NO3) on silver birch (Betula pendula Roth) were monitored in a greenhouse. The applied ammon...
Response of birch (Betula pendula Roth) phytophages to liming
birch Betula pendula Roth liming dolomitic limestone phytophages Eriophyes leionotus
2015/3/12
In the course of 2004–2007, the effects of compensation liming at the application dose of 1.5–3–6 t/ha dolomitic limestone on the elimination or activation of phytophages or other types of damage resu...
Feeding of the willow leaf beetle Lochmaea capreae L. (Coleoptera, Chrysomelidae) on leaves of birch (Betula pendula Roth) contaminated by heavy metals
Lochmaea capreae cadmium manganese lead zinc feed preference laboratory conditions
2015/2/2
The effect of contamination of birch (Betula pendula Roth) leaves with heavy metals on the feeding of imagoes of the willow leaf beetle (Lochmaea capreae L.) was studied under laboratory conditions. T...
The effect of stress factors on birch Betula pendula Roth
Betula pendula stress acid rain sulphur nitrogen drought grow phenology
2015/2/2
In a controlled pot trial, plants of birch (Betula pendula Roth) were treated in six variants: acid watering (pH 3), acid watering with spraying, drought, ammonium sulphate fertilisation, ammonium sul...
The role of root system in silver birch (Betula pendula Roth) dieback in the air-polluted area of Krušné hory Mts
Betula pendula Roth root system air pollution
2015/1/29
120 root systems and trunks of 20 years old birch trees and 60 root systems and trunks of 15 years old birch trees affected by defoliation and with no visual symptoms of damage were analyzed in the ai...