Originally Posted by yarro
Horse manure generally has to be composted down first. If you mix it into the soil uncomposted, it depletes the nitrogen in the soil until it breaks down.
yep, the uncomposted manure and woodchips will cause you to have to add nitrogen. get a bag of 10-10-10 and toss it in the area to make up the difference. in any event, the chips and humus you've added will help next season. get a couple soil samples and have them tested. your PH may be out of whack.