{"product_id":"laminated-root-rot-in-a-united-states-department-of-agriculture-9781508798118","title":"Laminated Root Rot in a Western Washington Plantation: Eight-Year Mortality and Growth of Douglas-Fir as Related to Infected Stumps, Tree Density, and","description":"A 4-year-old Douglas-fir plantation in the western Washington Cascades was monitored for 8 years after fertilization with potassium (K), nitrogen (N), and K+N to determine fertilizer effects on rates of mortality from laminated root rot (LRR) and other causes relative to a nonfertilized control. Each element was applied at a rate of 300 lb\/acre on and around 0.2-acre plots replicated seven times in a randomized complete block design. Cumulative mortality from LRR did not differ significantly among fertilizer treatments, and losses were strongly related to density of infected stumps from the previous stand (r2 = 0.74). Mortality from disease and other sources accelerated during the 8 years of monitoring. Average tree growth and stand volume were greatest in treatment N and were reduced where N was combined with K. Continued monitoring is needed to identify potential longer term effects of the fertilizer treatments on susceptibility of Douglas-fir to LRR and Armillaria spp.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e United States Department of Agriculture\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1508798117\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781508798118\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Createspace Independent Publishing Platform\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 06\/26\/2015\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 44\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.28lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 11.02h x 8.50w x 0.09d","brand":"United States Department of Agriculture","offers":[{"title":"Paperback","offer_id":44124341928191,"sku":"9781508798118","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_6c373b2a-95cb-44c6-9f2b-485d63bb24cf.jpg?v=1687436194","url":"https:\/\/www.whiterainbookhouse.com\/products\/laminated-root-rot-in-a-united-states-department-of-agriculture-9781508798118","provider":"WR Book House","version":"1.0","type":"link"}