Ontario field crops are showing rapid development as summer-like temperatures have dominated late June early July.
The warm spell has accelerated growth and helped reduce the heat unit deficit from a cool spring.
Corn fields have seen a burst in growth, especially early-planted varieties now reaching V8 or more advanced stages.
Side dressing is mostly complete, though late nitrogen applications are beginning. Issues like magnesium, zinc, and manganese deficiencies, along with root stress from compacted soils, have become more visible.