AG NEWS
AG NEWS

2017 Answer Plot® Insight #3: Split N for Higher Yield Potential

  • Jul 12, 2017
Answer Plot Sign
This is the third in a series four posts highlighting key insights from 2016 Answer Plot® field data and trials.

Managing nitrogen is a key concern as farmers continue to look for ways to increase yield while managing input costs in a tight market. Using split nitrogen applications is an important management strategy that can help increase productivity and profitability potential, while promoting sustainability.
 
An effective split-application program starts with using enough nitrogen to meet requirements for early-season growth, then returning with one or more applications to meet later nitrogen needs. This limits the amount of nitrogen that is susceptible to loss by leaching or denitrification. Delaying nitrogen applications also gives you more time to react to environmental conditions.

Split applications allow you to take several in-season measurements that can help you ascertain the correct nitrogen rate. Using in-season imagery with the R7® Tool, as well as tissue and soil testing with the NutriSolutions 360® system, can help you more accurately determine how much nitrogen to apply and when to apply it, without over-applying.

In 2016, at 15 Answer Plot® locations in 10 states, data showed that side-dress nitrogen applications made at V4 and treatments with a Y-DROP® applicator at V10 led to significant yield advantages in corn over a base rate. By applying nitrogen when crops need it most, plants can prosper while the financial and environmental costs of nitrogen loss can be minimized.
 
RESPONSE TO SPLIT NITROGEN APPLICATION IN CORN (BY MATURITY)

Results may vary. Because of factors outside of Winfield Solutions’ control, such as weather, product application and any other factors, results to be obtained, including but not limited to yields, financial performance or profits, cannot be predicted or guaranteed by Winfield Solutions.