Replicated Trials : 4 Replicate per group. 4 groups in total.
Field measurements include initial soil testing (pH, plant-available P and K) to determine
fertilization rates needed, soil testing at harvest (pH, plant-available P and K), and aboveground
leaf tissue testing at harvest (total N, P, K, Ca, Mg, Mn, Fe, Cu, Zn). Other measurements
include sweet corn yield (ears) and kernel brix. Fertilizers were applied preplant at 80% and
100% of the UF recommended rates for N, P, and K. Foliar micronutrient application was made
4 times during the growing season. ecoAgra 300 was sprayed onto corn according to
manufacturer’s guidelines using a 1:300 ratio of ecoAgra 300:water at 12 gallons of the
mixture/acre. Pest control (fungicides, insecticides, herbicides) were applied equally among all
treatments as needed. Hand weeding was also performed periodically as needed. Corn was
planted on Oct. 27, 2014 and harvested on Jan. 22, 2015. ecoAgra 300 applications occurred on
Nov. 24 and Dec. 17, at 28 and 51 days after planting.