Closed-Loop Backyard Farm Systems — FarmPal

Design your backyard farm as a closed-loop system where outputs from one element become inputs for another kitchen scraps feed chickens, chicken manure feeds compost, compost feeds garden, garden feeds family and chickens. Minimizing external inputs while maximizing internal cycling is the hallmark of a resilient micro-farm.

Principles

  • Every waste product is a resource waiting for the right connection
  • Stacking enterprises multiplies output from the same space and labor
  • On-site fertility generation eliminates dependence on purchased fertilizer
  • Diverse production buffers against single-crop failures
  • Time management matters more than acreage design for efficient daily routines
  • Start with the highest-value, lowest-effort enterprises first

Action steps

  1. Map your current waste streams

    Track kitchen scraps (lbs/week), yard waste, cardboard/paper, and water runoff for one month. These are your free inputs. A typical family generates 5-10 lbs of compostable waste weekly enough to feed 3-4 chickens or a worm bin.

  2. Design the nutrient cycle

    Kitchen scraps → chickens → manure → compost → garden → kitchen. Add worm bin for non-chicken-safe scraps. Compost tea from worm castings feeds container plants. Chicken bedding (deep litter) becomes garden mulch after 6 months.

  3. Stack enterprises vertically and temporally

    Grow mushrooms under fruit trees. Run chickens through garden beds between seasons. Grow salad greens in winter under cold frames while outdoor beds rest under cover crop. Dry herbs from summer garden for winter tea blends and seasoning.

  4. Install water cycling

    Capture rainwater from coop and shed roofs for garden irrigation. Route kitchen greywater (where legal) to fruit trees. Mulch all beds heavily to reduce irrigation needs by 50-70%. Duck pond water is pre-fertilized irrigation.

  5. Track inputs vs outputs quarterly

    Log purchased feed, soil amendments, seeds, and water. Log harvested food (by weight), eggs, and preserved goods. Goal: reduce purchased inputs 10-15% per year while maintaining or increasing production.

Benefits

  • Reduces grocery bill by $1,500-3,000/year on 0.25 acres
  • Eliminates need for purchased fertilizer within 2-3 years
  • Produces zero compostable waste everything cycles internally
  • Builds soil fertility year over year
  • Creates resilient food security independent of supply chains

Further reading

  • The Backyard Homestead Carleen Madigan
  • Mini Farming: Self-Sufficiency on 1/4 Acre Brett Markham
  • The Urban Farmer Curtis Stone