Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Richard T. Koenig"'
Publikováno v:
Applied and Environmental Soil Science, Vol 2011 (2011)
Applications of biosolids were compared to inorganic nitrogen (N) fertilizer for two years at three locations in eastern Washington State, USA, with diverse rainfall and soft white, hard red, and hard white winter wheat (Triticum aestivum L.) cultiva
Externí odkaz:
https://doaj.org/article/404717c4f9334f598a4578b0a45889fc
Publikováno v:
Journal of agricultural and food chemistry. 65(48)
Interactive effects of weather and soil nutrient status often control crop productivity. An experiment was conducted to determine effects of nitrogen (N) and sulfur (S) fertilizer rate, soil water, and atmospheric temperature on canola (Brassica napu
Autor:
Robert S. Gallagher, Kristy Borrelli, Amanda M. Snyder, Richard T. Koenig, E. Patrick Fuerst, Ian C. Burke, Dennis Pittmann
Publikováno v:
Renewable Agriculture and Food Systems. 30:461-472
Organic wheat and small grains are produced on relatively few acres in the inland Pacific Northwest. The objective of this study was to examine how the nitrogen (N) dynamics of cropping systems (CSs) produced during the transition phase impacted orga
Publikováno v:
HortScience. 48:183-188
Season extension structures like high tunnels make it possible to produce cold-tolerant crops during winter months for both a longer cropping season and a winter market season. The effects of location and planting date on the fresh yield of several c
Autor:
Amanda M. Snyder, Lori Hoagland, Kristy Borrelli, Dennis Pittmann, Robert S. Gallagher, E. Patrick Fuerst, Ian C. Burke, Richard T. Koenig
Publikováno v:
Journal of Sustainable Agriculture. 36:461-477
The nitrogen (N) dynamics of nine rotation systems designed to transition dryland cereal to organic production in eastern Washington State were examined. Systems combined cereal and legumes for grain, forage (FOR), and green manure (GRM). Few differe
Publikováno v:
HortScience. 45:1815-1818
Tissue nitrate (NO3) concentration (TNC) in leafy greens generally decreases with increasing light intensity and photoperiod in controlled environment studies. Harvesting late in the day has been recommended as a way to produce leafy greens with lowe
Autor:
Lori Hoagland, Amanda M. Snyder, E. Patrick Fuerst, Ian C. Burke, Dennis Pittmann, Robert S. Gallagher, Richard T. Koenig
Publikováno v:
Journal of Sustainable Agriculture. 34:483-503
Organic grain production is not common to eastern Washington, but offers attractive market opportunities if systems can be developed that are compatible with regional production constraints. Erodible soils make tillage-intensive systems unsustainable
Publikováno v:
Communications in Soil Science and Plant Analysis. 41:887-896
Polymer-coated urea (PCU) may facilitate nitrogen (N) placement with the seed. Laboratory experiments evaluated the effect of (i) variety and N treatment and (ii) urea contact with the seed on winter wheat (Triticum aestivum L.) emergence. Four varie
Potential for Ammonia Volatilization from Urea in Dryland Kentucky Bluegrass Seed Production Systems
Publikováno v:
Communications in Soil Science and Plant Analysis. 41:320-331
Urea replaced ammonium nitrate (AN) as a nitrogen (N) source for dryland Kentucky bluegrass seed production in the inland Pacific Northwest in the United States. This study assessed ammonia (NH3) volatilization, N recovery, and seed yield from urea a
Publikováno v:
Soil Science Society of America Journal. 73:367-374
Subsurface banding of P fertilizer is more effective than broadcast and incorporation for annual crops on P-deficient sites. Subsurface banding in established alfalfa (Medicago sativa L.) may damage plants. This study compared spring-applied, broadca