搜索结果: 1-14 共查到“农学 stand establishment”相关记录14条 . 查询时间(0.156 秒)
British Columbia抯 Forests White Pine Blister Rust Forest Health Stand Establishment Decision Aid
Cronartium ribicolaforest health forest management pine stem rust management Ribes spp white pine blister rust
2010/8/31
White pine blister rust (Cronartium ribicola) is an introduced disease affecting five-needle pines throughout North America. Like other non-native pests, its impact on the native hosts has been dramat...
British Columbia抯 Northeastern Forests: Aspen Complex Stand Establishment Decision Aid
deciduous and mixedwood management fibre production Populus tremuloides silviculture systems trembling aspen vegetation management
2010/8/31
Aspen (Populus tremuloides) is the most widely distributed tree species in North America and can be found from the McKenzie Delta to northern Mexico. Its range in British Columbia is restricted to the...
British Columbia抯 Northern Interior Forests Dothistroma Stand Establishment Decision Aid
climate change Dothistroma needle blight Dothistroma septosporum forest health red band needle disease tree species deployment
2010/8/31
Dothistroma needle blight, also known as red band needle blight, is caused by the fungus Dothistroma septosporum. It affects over 60 species of pine in 45 countries and is considered the most destruct...
British Columbia抯 Northern Interior Forests: Warren Root Collar Weevil Stand Establishment Decision Aid
duff reduction strategies Hylobius warreni lodgepole pine pests managing pine plantations pest hazard ratings stem girdling Warren root collar weevil
2010/8/31
Warren root collar weevil (Hylobius warreni) is a commonly occurring insect found in most of British Columbia and as far north as the Northwest Territories. This weevil affects many tree species and i...
Armillaria Root Disease Stand Establishment Decision Aid
Armillaria Root Disease Establishment Decision Aid
2009/2/11
In the Southern Interior of British Columbia, Armillaria (Armillaria ostoyae) root disease (DRA) causes considerable losses in immature stands by killing natural and planted coniferous trees. Tree mor...
Cariboo Forest Region：Part 2 of 3 Vegetation Complex Stand Establishment Decision Aids
Cariboo Forest Region Vegetation Complex
2009/2/11
Over the last four years, the Early Stand Dynamics program of FORREX–Forest Research Extension Partnership has assessed the information needs of the operational silvicultural community. This process ...
Hemlock Dwarf Mistletoe Stand Establishment Decision Aid
stand establishment hemlock dwarf mistletoe silvicultural considerations western hemlock
2009/2/5
Hemlock dwarf mistletoe (Arceuthobium tsugense), a parasitic seed plant, is endemic and common in coastal western hemlock forests from northern California to southern Alaska. The mistletoe spreads by ...
Laminated Root Rot Forest Health Stand Establishment Decision Aid
forest health forest management laminated root rot Phellinus weirii root disease management
2009/2/5
Laminated root rot (Phellinus weirii) is the most prominent root disease of Douglas-fir in coastal coniferous forests and is endemic throughout its host’s range in British Columbia. The disease spread...
Southern Interior Forest Region（former Cariboo Forest Region）：Part 3 of 3 Vegetation Complex Stand Establishment Decision Aids
Southern Interior Forest Region Vegetation Complex Decision Aids
2009/1/9
Over the last six years, the Early Stand Dynamics program of FORREX–Forest Research Extension Partnership has assessed the information needs of the operational silvicultural community. This process ha...
Southern Interior Forest Region Forest Health Stand Establishment Decision Aids
black army cutworm black stain root disease comandra blister rust forest health harvesting insects pathogens rhizina
2009/1/9
Since 1998, the Early Stand Dynamics program of FORREX–Forest Research Extension Partnership, in collaboration with its volunteers and partners, has assessed the information needs of the operational s...
Spruce Weevil and Western Spruce Budworm Forest Health Stand Establishment Decision Aids
Choristoneura occidentalis forest health harvesting Pissodes strobi productivity silviculture
2009/1/9
Western spruce budworm (Choristoneura occidentalis) is a defoliator of Douglas-fir throughout the tree’s range in British Columbia. Although recent defoliation levels within the Coast Forest Region (c...
Stand Establishment Decision Aid for nutrient-deficient, salal-dominated sites（Coastal Western Hemlock Biogeoclimatic Zone）
nutrient-deficient salal-dominated sites（Coastal Western Hemlock Biogeoclimatic Zone）
2009/1/9
This Stand Establishment Decision Aid (SEDA) for the Coastal Western Hemlock (CWH) biogeoclimatic zone is the first SEDA for the coastal region. We have focused on site series that have been studied s...
Red Alder Stand Establishment Decision Aid
Alnus rubra (red alder) red alder plantation management British Columbia’s coastal forests
2009/1/8
Red alder (Alnus rubra) is a common component of low-elevation Coastal Western Hemlock (cwh) biogeoclimatic zone forests in southwestern British Columbia, and is the most abundant broad-leaved species...
Studies on Plant Population and Stand Establishment Techniques for Increasing Productivity of Rice in Dera Ismail Khan, Pakistan
rice plant population planting techniques grain yield leaf area index
2008/12/11
Rice production in Pakistan is constraint by many factors pertaining to prevalent planting techniques. A research on the feasibility of new planting techniques (direct seeding on flat, transplanting o...