What are disadvantages and advantages of subsistence farming?

Disadvantages and advantages for each farming method?

• Can someone please tell me disadvantages and avantages of each farming method: Mulch Pest control Weed control Nutirent replenishment Water supply Pathogens

• Answer:

  Nematodes would be a good example, also enzymes used to control small flies. (utilizing a friendly bacteria) Advantages: Nourishment restores and widens the recreational beach. Structures behind beach are protected as long as the added sand remains. When erosion continues, beach nourishment does not leave hazards on the beach or in the surf zone. This is a big advantage when compared with "hard" beach stabilization structures like seawalls or groins. Seawalls may protect structures behind the beach, but they almost always cause the beach in front of the wall to become narrower. If erosion breaches the seawall, then debris from the wall will be left on the beach and in the surf. Since beach nourishment only puts sand on the beach, no debris is left when it erodes....!!