Terry- thanks on the pics - With the digital camera, I take alot of pictures, only a few ever get poasted (most are crud!).

As far as fertilizing corn, If the soil is not already high in Nitrogen, I apply 10-15% at planting, with all the P & K required, and the balance when the corn is about knee high. I usually broadcast 46-0-0 UREA at about 150-200 lbs/acre (puts down 70-100 lbs of N). Don' t wait till its over knee high - a little early is preferred to a little late - the N must be there fot that 3-4 ft shot of growth to tassling - Some leaf burn is to be expected where the UREA lands in a whorl, but no damage is done to the corn. - The ears of corn and # of rows per ear is all decided at this time, long before the ear of corn ever emerges from the stalk. Once kernals start to develop - N comes from the plant - NOT from the soil - so don' t wait - applying N once ears emerge - or after tassling is a wast of time & money.

No I didn' t clean the air filter - in fact I hadn' t noticed how dirty it was until you posted - When I go up this weekend I' ll make a point to check it out.