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Daily News Blog

Archive for the 'Fertilizer' Category


30
Mar

Chemical-Intensive Farms Singled Out for Excessive Use of “New” Nitrogen Fertilizers

(Beyond Pesticides, March 30, 2018) While conventional farming practices rely primarily on new sources of synthetic nitrogen fertilizer to grow crops, organic agriculture conserves nitrogen by using recycled sources, as detailed by new research published by the University of Virginia (UVA) and The Organic Center. Of concern is ‘reactive nitrogen,’ which is nitrogen in a form that will eventually be used by plants (ex. nitrous oxide (N2O), nitrate (NO3–), nitrite (NO2–), ammonia (NH3), and ammonium (NH4+)), rather than benign, non-reactive nitrogen in the form of N2.  “This research is significant and timely because its findings show that many common organic farming practices—like composting and the use of manure fertilization in place of synthetic fertilizers—can recycle reactive nitrogen that is already in the global system rather than introducing new reactive nitrogen into the environment, and thus have a much smaller environmental impact,” said Jessica Shade, PhD of The Organic Center. Earlier this year, researchers at the University of California Davis published a study in Science Advances with the finding that regulators in the state drastically underestimate chemical-intensive agriculture’s contribution to nitrogen oxide (NOx) caused air pollution, acid rain, and respiratory illness in the state. While NOx  pollution is usually associated with energy production and […]

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