Corn Response To Starter Fertilizer In Indiana

Starter 2×2 fertilizer in corn does not consistently increase grain yield but frequently reduces grain moisture at harvest by as much as 1.5 percentage points. Across our 52 field scale trials, there were no clear relationships between the likelihood of yield response to starter fertilizer and factors like previous crop, soil type, soil drainage, tillage system, planting date, or region of the state. However, while yield increases due to starter 2×2 fertilizer occurred less than half of the time in our trials, the potential for increased yield due to starter 2×2 fertilizer as high as 10 – 15 bu/ac makes its use attractive to consider. If you already have starter 2×2 fertilizer attachments on your planter and if you focus on traditional starter fertilizer sources (e.g., 28-0-0, 10-34-0), we believe that the use of starter 2×2 fertilizer, at 25 to 40 lbs N/ac, is a low-cost form of “crop insurance” against unpredictable soil and weather conditions at and after planting during the important stand establishment period. The higher frequency of drier grain at harvest due to starter fertilizer, and the annual cost savings that represents, adds to the attractiveness of making starter 2×2 fertilizer part of your corn production strategies.

Click here to read this article.

Figure 1. Taller plants, more biomass, and more advanced growth stage are common results of starter fertilizer use.

Figure 1. Taller plants, more biomass, and more advanced growth stage are common results of starter fertilizer use.

Share This Article
It is the policy of the Purdue University that all persons have equal opportunity and access to its educational programs, services, activities, and facilities without regard to race, religion, color, sex, age, national origin or ancestry, marital status, parental status, sexual orientation, disability or status as a veteran. Purdue is an Affirmative Action Institution. This material may be available in alternative formats. 1-888-EXT-INFO Disclaimer: Reference to products in this publication is not intended to be an endorsement to the exclusion of others which may have similar uses. Any person using products listed in this publication assumes full responsibility for their use in accordance with current directions of the manufacturer.
Pest&Crop newsletter - Department of Entomology Purdue University 901 Mitch Daniels Blvd West Lafayette, IN 47907

© 2024 Purdue University | An equal access/equal opportunity university | Copyright Complaints | Maintained by Pest&Crop newsletter

If you have trouble accessing this page because of a disability, please contact Pest&Crop newsletter at