Look up Logan Labs. Send them a soil sample. They will send you back a faboulous reccomendation of all natural amendments to get your ph right and nutrients flowing. Cover cropping in mid september with nitrogen fixing legumes, mustard greens will boost organic matter. On small beds, a high quality compost and compost teas will increase microbiology leading to more nutrient cycling. I try and not pull out the roots of most plants too. Cutting just below ground leaves all the root mass in the soil creating structure and fungal pathways. The deep rabbit hole is self made KNF preparations.