Considering whether your corn should be replanted? The authors look at types of plant damage at early growth stages and the effect on potential yield. It includes a table of relative yield potential of corn by planting date and population.
Early-season freeze damage results in a range of potential yield impacts. Severe damage is often limited to low-lying areas within a field because cool air is heavier than warm air. Early season survival of corn plants is attributed to growing-point protection below the soil surface; however, a hard frost can penetrate the ground and kill plants. Regrowth of corn following freeze damage is often impeded by dead leaf tissue that can entrap new leaves.
A review of 2016 growing conditions across Nebraska sheds light on a number of factors that may have contributed to reduced yield in individual fields. An understanding of these factors may be helpful when selecting seed for 2017.
UNL agronomists and educators responding to grower questions surveyed a number of corn fields this week and found a range of corn ear issues: short husks, dumbbell-shaped ears, and multiple ears per node. The article describes and discusses the situation, potential stress agents, and the development of corn. It also encourages growers to check their fields pre-harvest to better assess causes of potential yield loss.