THE BASIC PRINCIPLES OF GARDENING ZONES

Backyard hoes are generally utilized for getting rid of weeds, shaping soil and digging trenches or furrows for planting bulbs or seeds.I wish to see information on what forms of additive works most effective on veggies. Like magnesium sulfate, bone meal and so on. what will work most effective and when to work with on say tomatoes, peas, beats, an