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jselwa

Questions on Fertilizer

18 years ago

Just a quick question on fall fertilizer. I did an overseed mid-September on my PR/KBG/TTTF lawn with a straight KBG blend since I got hit with snow mold and major crabgrass earlier this year that left me with a ton of bare spots. I put down soybean meal the first part of September, about a week before my overseed. I got "ok" results - the KBG came in pretty good, but it's fairly short (will it take off in the spring?). It was watered fairly well and I started to taper off on the watering mid-October. However, I did not get a chance to get my October soybean app down (probably why my KBG was short!). I put a second soybean app down last week (11/19) and it did get rained in. Now, our temps are in the 30s for daytime highs and 20s at night. Should I add in a quick urea application before it gets any later, or will the soybean meal I put down last week be enough? I know KBG is a heavy feeder and I want to make sure it has a great start in the spring. Also, with the crabgrass problem I had this year (after spending almost a week on my hands and knees pulling it all out before the overseed), I want to make sure this problem doesn't return. I'm trying to stay organic, but I'm thinking I'm going to need Scotts crabgrass control in the spring, to allow my new overseed to take off. If I dormant seed this winter on the bare spots that didn't take off, it's pointless to do so if I want to apply a pre-m in the spring, correct? Or would Tuppersan be effective in the crabgrass control but still allow a dormant seed to be effective? I've spent two falls yanking crabgrass on my new lawn (new home construction) and don't care to repeat a third year. Thanks for any suggestion.

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