1. Role of Postemergence Sidedressed Fluid Potassium Fertilizer to Complement Preplant Fertilization in Corn-Soybean Rotations

Role of Postemergence Sidedressed Fluid Potassium Fertilizer to Complement Preplant Fertilization in Corn-Soybean Rotations Antonio P.  Mallarino and Louis B. Thompson-Ansorena Iowa State University ABSTRACT Farmers and crop consultants of non-irrigated areas of the north-central region have been asking questions about possible use of post-emergence fluid potassium (K) fertilization to complement preplant fertilization. Sidedressing N for corn is common,... A.P. Mallarino, L.B. Thompson-ansorena