Low potassium hurts more than yields

摘要

WILL you change hybrids and fertilizer rates on the go by 2025? Will you do it to better match hybrids and potassium fertilizer rates? Yes? No? Maybe? It's open to debate. But a newly-released report by Pioneer Hi-Bred International says there may bemore involved in the link between various corn hybrids and potassium fertilizer than once thought. Tom Doerge, Pioneer's agronomy research manager; suggests that "spatial variation" in nutrient supply within a field might be managed by (a) site-specifichybrid planting and (b) variable-rate fertilizer application.