أعرض تسجيلة المادة بشكل مبسط
| dc.date |
2007-05-15T13:45:57Z |
|
| dc.date |
2007-05-15T13:45:57Z |
|
| dc.date |
1998-05 |
|
| dc.date.accessioned |
2013-10-16T07:49:29Z |
|
| dc.date.available |
2013-10-16T07:49:29Z |
|
| dc.date.issued |
2013-10-16 |
|
| dc.identifier |
http://hdl.handle.net/1957/4858 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/xmlui/handle/1957/4858 |
|
| dc.description |
Mixed-conifer stands of grand fir (Abies grandis (Dougl. ex D. Don) Lindl., Douglas-fir (Pseudotsuga menziesii var. glauca (Beissn.) Franco), and ponderosa pine (Pinus ponderosa Dougl. ex Laws.) were fertilized with nitrogen and combination treatments of nitrogen, phosphorus, potassium, and sulfur to test their effects on trees and associated insects during an outbreak of the western spruce budworm (Choristoneura occidentalis Freeman). |
|
| dc.language |
en_US |
|
| dc.publisher |
U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station |
|
| dc.relation |
Research paper PNW |
|
| dc.relation |
506 |
|
| dc.relation |
Reports and Publications -- Other Reports and Publications |
|
| dc.relation |
Explorer Site -- Oregon Explorer |
|
| dc.subject |
Thematic Classification -- Habitats and Vegetation -- Vegetation -- Forests |
|
| dc.subject |
Thematic Classification -- Plants and Animals -- Insects and Invertebrates |
|
| dc.title |
Pilot experiment of forest fertilization during an outbreak of the western spruce budworm in Northeastern Oregon |
|
| dc.type |
Technical Report |
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الملفات في هذه المادة
|
لا توجد أي ملفات مرتبطة بهذه المادة.
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هذه المادة تبدو في المجموعات التالية:
أعرض تسجيلة المادة بشكل مبسط