Nitrogen Critical Level Determination in The Woody Ornamental ShrubEuonymus fortunei
العنوان: | Nitrogen Critical Level Determination in The Woody Ornamental ShrubEuonymus fortunei |
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المؤلفون: | J. L. Paul, Richard Y. Evans, Samantha J. Smith |
المصدر: | Journal of Plant Nutrition. 31:2075-2088 |
بيانات النشر: | Informa UK Limited, 2008. |
سنة النشر: | 2008 |
مصطلحات موضوعية: | Physiology, ved/biology, Nitrogen deficiency, Ammonium nitrate, ved/biology.organism_classification_rank.species, engineering.material, Biology, biology.organism_classification, Shrub, Euonymus fortunei, chemistry.chemical_compound, Agronomy, chemistry, Shoot, Ornamental plant, engineering, Fertilizer, Leaching (agriculture), Agronomy and Crop Science |
الوصف: | We determined the critical nitrogen (N) level on greenhouse-grown winter creeper (Euonymus fortunei Hand. Mazz. ‘Colorata’) in one-gallon containers by adding N in doses of 0 to 400 mg/pot as ammonium nitrate (NH4NO3) and growing plants for 50 days without leaching. At harvest, leaf N concentrations were similar in all treatments up to 150 mg/pot, but increased with applied N above 150 mg/pot. Yield increased with increasing leaf N up to about 1% N, but was relatively constant at higher leaf N. The leaf N critical level was 1.03%. Shoot:root ratio, based on new growth, decreased with applied N. This method for critical level determination provides an accurate description of the relationship between leaf N and growth and may be used by growers to improve fertilizer use efficiency. |
تدمد: | 1532-4087 0190-4167 |
URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::b110c8b8a77b2307caca8653c5caab77 https://doi.org/10.1080/01904160802459591 |
رقم الأكسشن: | edsair.doi...........b110c8b8a77b2307caca8653c5caab77 |
قاعدة البيانات: | OpenAIRE |
تدمد: | 15324087 01904167 |
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