Pre-plant incorporation of nitrogen fertilizer to spring- and fall-planted bareroot Scotch pine
| Autor: | E.G. Aldridge, David L. Hensley |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
geography
geography.geographical_feature_category biology Ammonium nitrate Sowing chemistry.chemical_element Horticulture biology.organism_classification Nitrogen chemistry.chemical_compound Animal science Human fertilization Nitrogen fertilizer Agronomy chemistry Pinaceae Spring (hydrology) Scotch pine |
| Zdroj: | Scientia Horticulturae. 45:175-180 |
| ISSN: | 0304-4238 |
| DOI: | 10.1016/0304-4238(90)90080-x |
| Popis: | Nitrogen (56, 112 or 224 kg N ha −1 ) was applied as ammonium nitrate or urea formaldehyde before planting Pinus sylvestris seedlings in the fall and spring. Controls received no fertilization. Survival and growth were measured. There were significant effects of N fertilization on survival. Higher levels of N resulted in lower survival without increased growth. Slow-release N allowed increased rates to be utilized without reducing survival, but there was no benefit in the higher N rates in terms of growth. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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