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  1. Ivan Tokash
    October 21, 2026 @ 10:14 am

    The nitrate issue in the surface and groundwater of the Chesapeake Bay watershed is a legacy issue that started in the 1970’s when commercial artificial fertilizer was introduced and farmers applied excess nitrogen to the fields because the cost of doing so wasn’t breaking the bank. With the current price of nitrogen compared to commodity crops, farmers are less inclined to apply more than what they need and many are seeking technology such as split rate application or AI monitored applications that can estimate the plants nitrogen need and adjust on the fly. The issue that arose from poultry litter was excess phosphorus in the immediate vicinity of the poultry houses. This was because farmers were applying the poultry litter to achieve their nitrogen requirements, which put the phosphorus application well above the required rate. The greatest difficulty in the modern day for poultry litter is that the farms have a legacy excess of phosphate, but the cost of transporting the litter at great distances becomes quickly prohibitive. Manure is heavy, to get the roughly 200 ln-N required for 200 bu of corn, the commercial fertilizer would weigh ~500 lb vs 3 tons of poultry litter, and even more for cow manure. Some of those companies creating biochar from the litter would have been greatly reducing the weight of the litter by remove the water content of the biomass. Allowing it to be distributed further from the facility.

    As for anerobic digestion, the paper sited by this article refers to hog manure which is chemically different from cow manure. There is not much of a hog industry in Maryland. The more pressing issue with AD’s is that the utility company refuse to pay farmers for the electricity that they generate, so many farmer throttle their output to cover their electricity bill.

    On the arsenic concentration in poultry litter, that was because the poultry industry (not the farmers) was using an arsenic based antibiotic call roxarsone to keep the chickens from getting sick. Maryland has already addressed this by banning the use of roxarsone starting 1/1/2013. In addition to this, poultry farmers in America are more accurately poultry summer camps. The integrator (the company that processes and sells the meet for consumption) owns the birds and provides the feed. The farmer just owns the house and makes sure that as little bird die before pick up day, from there they are paid based off of a competitive rate of how well the birds gain weight.

    Lastly, for an article that bashes attempts to innovate and come up with more solutions and says that we should focus on what works, they make little attempt to discuss what practice are currently being used and are known to be effective.