Hey GrowRebel:jointsmile:
I'am from up there and yes you can reuse the soil.If you dont have snow or the soil is not frozen add the cow poo and cut it in the soil.Leave it till the last frost of winter.As spring comes along spread lime over the soil and tillup the soil real good.You do this about one week before you plant.The cow poo put back some of the beneficials to the soil.If you dont believe me take a ride down to the Amish farms.They grow All there crops outside and do not use chemical fertilizer.The small amount you are useing just use 1/3 cow poo to 2/3 soil.In the spring add 1 Table spoon lime to each gallon of soil.You will do real good outside.Your not going to harvest till mid oct. growing out doors.
Merry Chrismas and Peace:weedpoke: