The corn/soy free diets will tend to produce less eggs..... Depending on formulation, it could be considerably less. Judging by the ingredients, and protein content of the feed, I would assume that you are actually short on energy, rather than protein. It may be a necessary evil, with that type of formulation. It is difficult to formulate a soy-free ration, and also maintain optimum energy levels in the feed. Using large amounts of field peas, in order to raise the protein of the feed, will drastically reduce the amount of available energy. I believe they make a 16% protein version, and that will probably work better, as long as you are not feeding a lot of scratch feed. If you would like to stay with organic feed, you might want to try a more traditionally formulated feed. (If production levels are very important to you, and you don't mind corn or soy)
Energy levels are more of a driving factor for egg production. Protein levels will have more effect on the size of your chickens, and the size of your eggs. Both things are equally important to the health of your chicken.
Also, you will start to see a natural drop in egg production, as soon as the days start getting shorter. More and more as the you get into late august/sept. (unless you are lighting them, to keep them at 16ish hours of light, per day)
Energy levels are more of a driving factor for egg production. Protein levels will have more effect on the size of your chickens, and the size of your eggs. Both things are equally important to the health of your chicken.
Also, you will start to see a natural drop in egg production, as soon as the days start getting shorter. More and more as the you get into late august/sept. (unless you are lighting them, to keep them at 16ish hours of light, per day)