Heavy rainfall and flooding in many Midwest fields in 1993 prompted farmers and others to ask about soil compaction and the need for preplant tillage prior to planting the following year. On five Iowa farms that experienced excessive rainfall, U.S. Department of Agriculture researchers compared shallow, moderate and deep tillage and evaluated their effects on soil compaction and crop yields.
In a 17-year Nebraska study, researchers found that conservation tillage gave higher irrigated corn yields and profits than tilled plantings. The average yield increase was 4 bushels per acre, while the three conservation tillage treatments resulted in $8 to $16 per acre less tillage costs than the conventional disc tillage treatment. The conservation tillage treatments were ridge-till, rotary-till and slot-plant, while tilled treatments consisted of chisel, disc or lister operations for the furrow-irrigated continuous corn plantings.
Discover 2-days of cutting-edge ideas, techniques and strategies in Coralville, Iowa., July 28-29. Join the most innovative, forward-thinking minds in strip-till to raise your level of strip-till profitability, efficiency and efficacy.
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.