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Daily News Blog

Archive for the 'Fertilizer' Category


06
Mar

Nutrient Runoff, Aquatic Weed Killers, and Florida’s Red Tide Collide in Public Debate

(Beyond Pesticides, March 6, 2019) After a brief hiatus, Florida Fish and Wildlife Conservation Commission (FWC) is continuing use of aquatic herbicides, including glyphosate, for invasive species management. Public pressure and feedback caused FWC to take a temporary pause from spraying while the commission collected public comment¬† through public hearings and emails from late January through February. FWC ultimately decided to resume spraying invasive species, and points to its improved integrated management system as reducing overall herbicide use. Glyphosate, one of the 17 aquatic herbicides that FWC uses regularly has sparked opposition from environmentalists and the general public due to its wide usage and known adverse effects. According to FWC data, 12,263 pounds of glyphosate-based herbicides were used on Florida’s Lake Okeechobee in 2017. About 175,000 people have signed North Palm Beach photographer and wildlife advocate Jim Abernathy‚Äôs petition titled ‚ÄúStop The State-Sanctioned Poisoning of Our Lakes and Rivers!‚ÄĚ. The petition decries the use of glyphosate to kill invasive aquatic plants and warns of subsequent nutrient pollution caused by decay. An excess of nutrients (e.g. nitrogen and phosphorus) in water bodies contribute to algal blooms. Eutrophication can eventually result in oxygen depletion and thereby decrease biodiversity. FWC denies that the […]

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11
Jul

Regenerative Farms Yield Soil Health and Higher Profits than Chemical-Intensive Operations

(Beyond Pesticides, July 11, 2018) Ecologically-based farming systems contain far fewer pests and generate much higher profits than their conventional, chemical-based counterparts according to research published in the journal PeerJ earlier this year by scientists at South Dakota State University and the Ecdysis Foundation. The study supports calls to reshape the future of agriculture, as ‚Äėregenerative‚Äô farms, which avoid tillage and bare soil, integrate livestock, and foster on-farm diversity. These farms are found to represent an economically viable alternative to overly simplified, pesticide and fertilizer-dependent cropping systems. Given the study‚Äôs focus on corn cropping systems, such a shift is possible for thousands of farmers throughout the United States. Researchers looked at roughly 75 fields on 18 farms, measuring the organic matter in the soil, insect pest populations, corn yield as well as profit. Farms using pesticide treatments, which in corn fields is represented primarily by the use of neonicotinoid-coated seeds, had 10x higher pest levels than regenerative farms. As noted in the study, pest populations are a function of the biodiversity within the crop field. Biodiveristy increased on regenerative farms not only because farmers sprayed fewer pesticides, but because they also allowed more plants to grow in between rows. More […]

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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 ‚Äėreactive nitrogen,‚Äô 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.¬† ‚ÄúThis research is significant and timely because its findings show that many common organic farming practices‚ÄĒlike composting and the use of manure fertilization in place of synthetic fertilizers‚ÄĒcan 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,‚ÄĚ 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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