| Título: | The influence of soil characteristics and fertilizer treatment on growth and chemical composition of Pinus resinosa. |
| Autores: | Cotton, Donald. R. |
| Fecha: | 1964 |
| Publicador: | McGill University - MCGILL |
| Fuente: |
 |
| Tipo: | Electronic Thesis or Dissertation |
| Tema: | Soil Science. |
| Descripción: | Vast areas of abandoned or sub-marginal land exist. In Quebec alone it has been estimated that there are about 1,400,000 acres of abandoned farmland (32). Some of this land is being turned into tree farms and more of it could be so utilized if some problems could be overcome. The chief difficulties existing are mainly those of uneven topography, poor drainage and low fertility status of the soil. This latter problem could be possibly the easiest difficulty to overcome provided adequate knowledge existed of the effects of fertilization on reforested areas. To assess relative fertility levels of soils for purposes of reforestation methods of soils analysis as well as plant analysis may be useful. These must be developed in conjunction with fertilizer application experiments either in the field or in the greenhouse under a controlled environment. |
| Idioma: | en |
1 Investigations on the form-genera Beauveria and Tritirachium por MacLeod, Donald Murdock | 6 Treatment and recovery in first-episode psychosis : a qualitative analysis of client experiences por Windell, Deborah L. |
2 Seismic sensitivity of tall guyed telecommunication towers. por Ghodrati Amiri, Gholamreza. | 7 |
3 Exploring the Relationship Between Assets and Family Stress Among Low-Income Families por Rothwell, David W.,Han, Chang-Keun | 8 |
4 The case for asset-based interventions with indigenous peoples: Evidence from Hawai‘i por Rothwell, David W. | 9 |
5 Second Thoughts: Who Almost Participates in an IDA Program? por Rothwell, David W.,Han, Chang-Keun | 10 Recent contributions to the phenomenology of musical time : a critical survey por Beaudreau, Pierre |