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Nutrient cycling in intensively managed short rotation hybrid poplar plantations
Hybrid poplars grown on short rotation offer rapid growth (20 years), biomass accumulation greater than native aspen stands, and a large sink for nutrients and carbon. The biomass and nutrients exported after harvesting ...
Residual impact of topsoil removal and soil amendments on crop productivity over sixteen years
Soil erosion remains a threat to our global soil resource. This study was conducted to ascertain the effects of simulated erosion on soil productivity and methods for its amendment. Incremental depths (0, 5, 10, 15 and 20 ...
Long-term trends in heavy metal and metalloid levels in a Saskatchewan prairie soil
Global heavy metal and metalloid pollution has increased during the last few decades accompanied by marked increases in global population and a rapid increase in metal production. Since the mid-1990s, higher-than-desired ...
Expression analysis of low temperature-induced genes in wheat
Wheat (Triticum aestivum L.) is a widely adapted, economically important crop exhibiting winter, spring and intermediate growth habits. Winter wheat is seeded in the fall, over-winters, resumes growth in spring and is ...
Wild oat nutrient uptake and release from residue
Identification and distribution of barnyard grass (Echinochloa crus-galli and E. muricata)
Barnyard grasses (Echinochloa spp.) have become increasingly prevalent in agricultural fields of the Prairie Provinces during the past 30 years. The taxonomy and identification of the barnyard grasses has been controversial ...
Economics of controlled urea fertilizer in cropping systems
Nitrogen fertilizers are chemical compounds given to plants to promote growth. However, their application can impact the environment through ammonia and greenhouse gas emissions, and through leaching which can lead to ...
Use of genotypic variation of oat (Aven sativa. L) cultivars to suppress wild oat (Avena fatua. L) competition
Wild oat (Avena fatua L.) is considered to be one of the most troublesome weed in oat cultivation due to its difficulty to control using herbicides. Genotypic variation in oat cultivars can be used as a potential strategy ...