Great thinking, the permutations are endless with chickens rotated with plants.
Here are a couple scenarios that have proven to work well for me over the years-
Each year I raise a batch of about 100 meat chickens, which will be arriving next week (late April)-
First, they are raised for about three weeks in my
greenhouse. The plants in the
greenhouse are all a month or two old, just large enough that the chicks do not trample them. Kale, chard, tomatoes, strawberries and lettuce are the vegetables. At about three weeks, the chickens begin to trample and damage the plants, so it is time to move on. I move the chicks out to the garden house. I can then add a new round of plants to the greenhouse, more palatable things that the chicks would destroy like peppers and basil.
Second round is the chicks, now three weeks old, in the garden. At this time (mid-May), there are garlic, onions, spinach, peas, raddish, and carrots growing in the garden. The chicks are small enough still, and there are a large enough amount of plants, that the damage to my crops is minimal. There is sill a lot of bare ground in the garden at this time, so mostly the chicks peck and scratch at the bare areas that are about to be planted during my primary garden planting in late May. I give the chicks about two weeks to work over the garden, then once again, i begin to notice damage to my plants, and I need to plant new tender plants, so i move the chicks once again. They sleep at night in the garden chicken house, which has a wire floor so I can gather all their manure that drops through at night when they are roosting. This is their home from 3 weeks of age to harvest at 6 months. This way they are safe from predators at night, and I can collect their nightime manure for use in the garden.
Third round, I close the doors from the chicken house to the garden, and open up the doors on the other side so the chickens range out into the orchard. This is where the chickens will spend the entire summer, except for occasional pulses back through the garden if there are bug issues I want to knock back a bit. The chickens do great in the orchard, cant harm anything. They minimize the bugs beneath my fruit
trees, keep the cultivated soil around the tree bases loose and weed free. To encourage this, I
feed the chickens their grain around the bases of the 60 or so fruit trees, changing each day the tree beneath which I scatter their grain. They aerate the soil, cultivate the emerging weeds. Additionally, I mow the lanes between the trees and rake the grass around the tree bases, which the chikens then dig through and
poop on, building mini
compost piles under each tree as the season progreesses.
Fourth round, in October, after the first frosts and the bulk of the garden is harvested, I let the chickens back into the garden for a week or two, to clean up all the dropped vegetables and remaining bugs. Any plants still in the ground are large and dont suffer much damage. The chickens get one last round of fattening on the spoils of the garden, and then it is chicken harvest time, about 6 months from their hatch date.
The ratio of chickens to area is key, I have about a 10,000 foot square garden with 100 chickens, and the orchard is another 1 acre. These proportions seem about perfect. Timinig is also crucial, as things get damaged in a hurry if you leave the chickens in too long.
My layer hens, between 30-60, are a seperate system-
They spend the winter indoors in a deep bedding house, with tree limb roosts overhead and a deep sawdust floor. This way I gather 100% of their manure for future use in the garden. It gets pre-mixed with the
carbon from the sawdust, so when i shovel out the henhouse, the bedding just need to be moistened and innoculated, and the compost pile is on its way.
In the spring, I let them into the cow barn, where they cleanup the bits of leftover alfalfa hay, and eat what they will from the manure. They still sleep in the henhouse, so I get about half of their manure. But their cleanup value in the
cattle barn is worth the loss of manure.
In the summer, they go back into their deep bedding house, and get fed tons of green material and vegetables from the garden. There is too much in the garden for them to damage at this time of year, and if I leave them in the cattle barn too long they begin to find places to hideout and lay their eggs. So too much
freedom makes for an unruly situation.
In the fall, after the meat chickens are harvested, and the garden is cleared and tilled, I let the hens out into the garden for a few months. They peck and scratch the tilled garden soil. They eat tons of remaining weed seeds and soil bugs. Their manure directly adds to next year's fertility in the garden. All assets, no damage.
The scale can be modified based on your needs, smaller or larger. The system can certainly be tweaked to meet your needs as welll. This plan has evolved over the past five plus years, and finally is at a place that I really like. I have two structures, the hen house and the garden chicken house. I keep my laying hens and my meat birds totally seperate. I collect 70-80% of their manure for compost. The chickens are my cleanup crew around the farm at different times of the year.
Permaculture at its finest- animals and plants helping one another under the stewardship of the farmer. A beautiful cycle of life.