Nitrogen is a plant nutrient that stimulates crop growth, when applied in excess affects the crop by over stimulation of growth, delayed maturity and poor quality of crop yield.
It also says the accumulating emissions pose newly identified risks to farmers, citing studies showing that carbon dioxide promotes the growth of invasive weeds far more than it stimulates crops and that it reduces the nutritional value of some rangeland grasses.
Because of spatial heterogeneity in biophysical, and current agricultural production factors, potential gains from stimulating biofuel crops are non-uniformly distributed across space.
Environmentalists and others have voiced worries that genetically modified crops might stimulate a boom in superpests.
If the plants make it to market, they could lower the price of genetically modified crops and stimulate further innovation.
The effluents not only contain nutrients that stimulate growth of many crops, but also may have various toxic chemicals, metals, metallic oxides along with nitrogenous and phosphate compounds, which may affect various agronomical characteristics of crop plants.
For example, these polymers stimulate plant growth and improve crop yields (Badawy and Rabea 2011; Deepmala et al. 2014; El Hadrami et al. 2010; Sharp 2013).
Here, we illustrate one example of how crop science can stimulate evolutionary research on genetics and mechanisms of adaptation in natural systems, and where evolutionary and ecological approaches might facilitate the search for agronomically valuable traits.
Generous subsidies were given in many developed nations in order to stimulate the production of biofuel crops.
Policy schemes that aim to stimulate the cultivation of biofuel crops typically ignore the spatial heterogeneity in costs and benefits associated with their production.
