The amount of nitrogen lost to heavy rains depends on several factors, but the major one is the form of nitrogen applied, according to University of Kentucky Ag Extension.
After a 60-day notice of intent to sue, Des Moines Water Works voted unanimously to file a federal lawsuit against three counties in northwest Iowa for nitrate pollution. While enacting regulations may not solve the problem, I think it's a wake-up call for no-tillers to ensure they're doing everything in their power to limit nutrient runoff from their fields.
USDA researchers say that winter rye crops seeded in no-till corn-soybean systems have the potential to reduce annual nitrate loss in field drainage by about 18 pounds per acre.
Most problematic for legumes, molybdenum deficiencies are sometimes misdiagnosed as nitrogen deficiencies, but with a soil pH greater than 6.0, a response to applications is unlikely.
No-tillers looking to develop a healthier, stronger root system will want to focus on how to create optimal soil environments that interact well with good genetics.
No-tillers may keep an eye on what’s going on aboveground throughout the growing season, but what's taking place belowground can also have a big impact on crop health and yield.
No-tillers who research the most efficient timing, placement and method of nitrogen application can reduce environmental losses and still increase yields.
As the U.S. EPA pressures state regulators to follow provisions in the Clean Water Act more closely, many states are drawing up nitrogen management plans that could affect no-tillers in the future.
Lessons learned from measuring nitrates as corn reaches physiological maturity can help no-tillers improve nitrogen management and the farm’s bottom line.
No-tillers wanting to get a better handle on how efficiently they’re using nitrogen on corn acres should consider late-season corn-stalk nitrate sampling programs, including one offered by the Iowa Soybean Association On-Farm Network.
A lot of careful consideration goes into selecting which fertilizer should be added to a crop, but all the decisions have been made, little thought is then given to what actually happens next.
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On this edition of Conservation Ag Update, brought to you by CultivAce, longtime no-tiller Jim Leverich explains why 20-inch corn rows are paying off big time on his Sparta, Wis., farm.
Needham Ag understands the role of technology in making better use of limited resources within a specific environment by drawing on a wealth of global experience to overcome the challenges facing today's farmers, manufacturers and dealers.
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