An Erie Feeling For Ag

Plenty of water issues have been in the news lately, including the continuing drought in California. For agriculture, however, perhaps the most significant water story of the past few months could tie back to one coming out of the Great Lakes region.

In early August, an unexpectedly large bloom of algae in Lake Erie was discovered. When these organisms died, they released toxins into the water high enough to cause the city of Toledo, OH, to ban all water usage for approximately one week. This affected more than 500,000 Ohioans and caused the state’s governor to declare a state of emergency in three counties.

By the middle of August, the crisis had passed. Ultimately, investigators blamed the algae outbreak on “unusually warm weather and calm winds caused the water to warm and promote algae growth.”

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Others, however, were quick to point the finger of blame at agriculture. “In the case of Toledo and Lake Erie, the solution is simple: Stop using chemical agriculture anywhere near Lake Erie,” wrote one critic in an online post. “Once the flow of phosphorus into the lake water is sharply reduced or ended, the algae blooms are averted and the water is once again safe to drink.”

How serious do you think the algae bloom outbreak in Lake Erie was in August?

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According to Doug Busdeker, farm center area manager for The Andersons, Inc. (which is based in nearby Maumee, OH), it is generally accepted that agriculture contributes approximately 50% of the phosphorus loading into the Maumee River (although this percentage drops substantially as the water flows in the lake). “The rest probably comes from lawn fertilizer companies and residential sources,” says Busdeker. “Unfortunately, the Western Basin is rather shallow, only averaging 25 feet, so when the weather warms up, all the rivers that feed into it can cause an algae bloom like the one we saw in August.”

Despite these facts, agriculture seems to be the only phosphorus user squarely in the cross-hairs at the moment. In mid-August, Adam Rissien, director of agricultural and water policy for the Ohio Environmental Council suggested that state lawmakers ban the use of fertilizer during winter months and declare Lake Erie “a distressed watershed.” According to Jack Fisher, executive vice president of the Ohio Farm Bureau Federation, such a move is worth discussing, “but might not justify [the] extra costs that would be forced upon farmers.”

To combat this kind of talk, The An­dersons’ Busdeker suggests growers adopt certain practices to curb runoff. This includes not applying fertilizer on frozen ground, making sure phosphorus is incorporated into the soil quickly once applied, performing regular soil tests to check phosphorus levels and planting cover crops to slow phosphorus movement.

I agree. If agriculture isn’t proactive when it comes to protecting the nation’s watersheds, the Erie feeling currently being felt in Ohio could easily spread across the entire country.

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If you are a grower or a homeowner which of the following messages would you prefer to hear from the state or federal Environmental Authorities ?
1. Mr Homeowner we have passed a law that forbids the use of fertilizer on your lawns during the winter and limits the application amount in the spring. Or Mr. Grower The State and Federal has passed regulations restricting the amount of fertilizer that can be applied regardless of what crops you are growing or the results of soil testing.
2. Mr Homeowner or Mr. Grower, We would like to share with you the results of university studies and field results that prove you can reduce your input costs ( including fertilizers and fungicides ) while increasing your crop yields by applying all natural, non-toxic beneficial microorganisms to your soil.
It is a simple very cost effect approach but not one that will be promoted by Ag Retailers who would experience a drop in fertilizer sales.

Avatar for Tom Krill Tom Krill says:

I am not to rule out the impact of agriculture and phosphorus in Lake Erie; however, my curiosity revolves around what are the “normal” phosphorus levels of the water in Lake Erie. My concern is that the phosphorus levels in the sediment of Lake Erie are high enough to maintain a high phosphorus level in the lake regardless of what inflows come from the watershed. Phosphorus has been an issue in this region for decades, it is not a new issue. We know agriculture, plus others, have contributed to this phosphorus loading for decades. Through modified agricultural practices, I can not believe that the inflow of phosphorus from agriculture has not been greatly reduced over the years. I will not say it is perfect, but believe it is much improved. My question is are we really missing the source of the problem? I would believe the phosphorus inputs from the watershed, attributed to agriculture, would be at their highest in spring. I also believe water flow through the Great Lakes would be highest in the spring, greatly diluting the phosphorus level and assisting in moving it out of the Great Lake system. Agronomically, I would expect potential phosphorus discharge to be lowest in the summer when the agricultural crops are diligently scavenging and utilizing both phosphorus and water. Why do the algae blooms occur in the late summer? I believe it is because of water temperature increasing, not an input of phosphorus. However, phosphorus must be present to support the algae bloom. My concern is that the real problem is sitting at the bottom of the lake operating as a great phosphorus reserve and storage vessel, not so much about what is getting added through the watershed today. This is not to say that production agriculture does not need to continue to examine production practices and potential phosphorus runoff, but are we putting the blinders on and missing the “real” cause of the problem?

Avatar for Montana Farmer Montana Farmer says:

If what Tom says about the sediment in Lake Erie causing the problem is true, I believe it is, then you need to remember what was determined to be the problem decades ago– phosphorus laundry detergent which has since been banned.

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