GIS could include the monitoring and mapping of yield data relative to discrete positions within the field. VRT could be used to vary the amount of N applied site-specifically within the field to reflect differing historical yield levels. All are inter-related as they influence soil temperature and thereby early season crop growth. Any factor which results in low soil temperature during germination and establishment can result in slow crop development and a reduction in crop yield potential. 4 pts PPI herbicide incorporation is to be uniform in the top 1 to 3 inches of the soil.
Zone tillage uses multiple coulters to prepare a seedbed as a band in the row area.
The result of this additional tillage should be greater residue incorporation and faster soil warming than would otherwise occur if the row area surface were left under the nearly-complete cover of heavy corn residue on this poorly drained soils. This row tillage will also lessen early - season soil bulk density and allow greater evaporative loss near the surface, also resulting in more rapid soil warming than would otherwise occur. Warmer early season soil temperature enhance early crop growth rate in this cool - Spring environment and may result in higher yield potential and faster dry down at maturity.