No-till corn yields comparable to those achievable with chemical nitrogen fertilizer can be produced with liquid dairy manure as the only nitrogen source — if the manure is incorporated at application, according to studies by two Ohio State University researchers.

Myron Wehr asks questions. Most recently, he’s asking about the right fertilization program for his 1,900-acre farm in New Waterford, Ohio, and the several hundred acres he no-tills and harvests for neighbors. So he’s hosting an Ohio State University research project comparing his regular nitrogen program with fall and spring applications, both broadcast and incorporated, of manure and nitrogen. The results favor incorporated manure.