Messages : 5846
Date d'inscription : 24/11/2008
Localisation : The Best in the West, MTL, QC
|Sujet: About Nitrogen (Rhio) Jeu 31 Déc - 21:57|| |
Nitrogen is a necessary component of plant growth. There is an abundance of free nitrogen in the air. But how does the free nitrogen from the air get into the soil? Nature has various mechanisms, the least known of which has to do with thunder and electrical storms. As lightning comes streaking through the air during an electrical storm, it catalyzes a chemical reaction that converts nitrogen from the air into nitric and nitrous acid and deposits them into the soil with the rain. Approximately 250,000 tons of nitric acid are formed in this way in EACH 24 HOURS!
Certain soil bacteria, which attach to the root nodules of leguminous plants, also attract free nitrogen into the soil. This process is called nitrogen-fixing. Evidence suggests that this natural process ceases in the presence of synthetically produced nitrogen. Nitrogen is also abundant in compost and humus. Chemical fertilizers are composed primarily of three ingredients, abbreviated as NPK. The N stands for nitrogen, while the other two-thirds of the trio are phosphorus (P) and potassium (K). With these three ingredients, and a barrage of pesticides, conventional farmers think they can grow healthy crops. T he results of using these synthetics is weakened plants, susceptible to disease and insect infestations. In addition, these plants are deficient in trace minerals, as they are not supplied in the NPK fertilizer.
Have you heard of nitrate and phosphate pollution of underground water sources and rivers? This is the result of fertilization of soil by chemicals, which later seep out and contaminate our water. These nitrogen-based fertilizers also release nitrous oxide into the atmosphere, which contributes to global warming.
(...) when corn was heavily fertilized with synthetic nitrogen, it was unable to convert carotene into vitamin A. The resultant corn was also deficient in vitamins E and D. Other research demonstrated that levels of iron, zinc, copper and manganese in corn were also reduced by heavy chemical fertilization.