Timely sidedress nitrogen guided by soil testing and applied before the V8–V9 growth stage helps ensure corn has the ...

AMES, Iowa – The soil fertility tests farmers have used for decades to measure nitrogen levels don’t account for the vast majority of the nitrogen in soils, so Iowa State University scientists helped ...

Soil testing is hardly new, and state leaders keep pointing elsewhere to excuse humans' polluting choices, writes .

Add Yahoo as a preferred source to see more of our stories on Google. Organic nitrogen is important for plant growth, but too much of it can cause a range of problems. Over-fertilization, improper ...

Nitrogen is often the most limiting nutrient in growing plants. When deficient, plant yields and quality are reduced. However, excessive nitrogen applications could cause concerns in water quality and ...

High input prices means farmers will want to be especially judicious about the amount of nitrogen fertilizer they apply on their corn crops this spring. One way that farmers who have regularly used ...

Iowa says farmers upstream from Des Moines can cut fertilizer costs and reduce nitrogen levels in drinking water supplies ...

MIDDLEBURG — The Snyder County Conservation District is offering an on-site testing service for farmers to determine whether sidedress nitrogen is needed. There is a one-time fee of $10. This testing ...

Organic nitrogen is important for plant growth, but too much of it can cause a range of problems. Over-fertilization, improper composting, or runoff from nearby agricultural areas can all contribute ...