Corn Research

Efficacy of Avicta Duo on nematodes in corn and yield

The objectives of this study are to evaluate Avicta Duo at two rates for corn nematode activity, improved stand, vigor, heights and yields in fields with corn nematodes, compare Avicta with Counter for corn nematode activity, improved stand, vigor, heights, and yields, and evaluate potential for crop phytotoxicity. This is conducted by Drs. Pawel Wiatrak, John Mueller, and Francis Peter Fortnum Reay-Jones.

Nitrogen use efficiency and corn yields with Nutrisphere-N application

Pawel Wiatrak

The main objective of this project is to improve nitrogen use efficiency, yields, and profitability of corn production with the Nutrisphere-N application. The short term objectives are to evaluate the effectiveness of Nutrisphere-N with nitrogen (N) application on improving N use efficiency, yields, and profitability, determine optimum timing and rates of nitrogen with Nutrisphere-N for corn under different soil zones, and evaluate N and other nutrient movement, based on soil samples, across different soil zones to help develop environmentally sound corn nitrogen fertilization system. This is conducted by Dr. Pawel Wiatrak.

Plant population and nitrogen application on corn

The corn seeding rate by nitrogen rate interaction is being evaluated on corn to improve yields and profitability. The seeding rates range from 16,000 to 36,000 seeds acre-1 and nitrogen rates range from 0 to 180 lb acre-1 under dryland conditions.  This is conducted by Dr. Pawel Wiatrak.

Incorporating soil electric conductivity in developing variable nitrogen application for corn in the southeastern USA

This interdisciplinary project will help to develop and test procedures for a site specific nitrogen application in corn with a goal of increasing profitability of farms. Applying nitrogen only where needed at appropriate rate, in relation to soil electric conductivity (EC), will help to reduce the cost of applied fertilizer, increase farm profits, and reduce soil and water pollution. This research is conducted at six grower fields in South Carolina and additionally at Edisto and Pee Dee REC. This is conducted by Drs. Pawel Wiatrak, Ahmad Khalilian, David Wallace, and Will Henderson.

Tillage systems & nitrogen application rates under dryland conditions

The soil texture can influence the nitrogen efficiency in corn. Therefore, there is a need to determine the optimum nitrogen application methods and rates for corn based on soil texture. The objective of this study is to evaluate the efficiency of nitrogen application on corn planted under different soil textures and tillage systems. Corn is planted across four different soil zones and under three tillage systems (no-till, conventional, and strip-till), two methods of N application (all at planting and split application), and five N rates (0, 40, 80, 120, and 160 lb N acre-1). This is conducted by Drs. Pawel Wiatrak, Ahmad Khalilian, David Wallace, and Will Henderson.

For grower and production information on corn, visit Clemson's Cooperative Extension Service website.