Fairly easy answer to this. If I took a orange tree and only fed it water and air. Would it produce oranges with vitamin c? The answer. No. Because the plant re

Fairly easy answer to this. If I took a orange tree and only fed it water and air. Would it produce oranges with vitamin c? The answer. No. Because the plant requires far more than just water and air in order to run all the other systems within itself to make that vitamin c production happen. If you take away certain elements in your soil, your going to affect aspects of that plants health that in turn affect its production capacity. If you provide most nutrients for a plant sure it will produce fruit. Will that fruit be as good as fruit from a plant with all the nutrients? No, no it will not.