verite, i think the idea behind the original post is that organic soil mix is by nature of a neutral pH. in reality, unlike sproutco's theory (and even Jorge's opinion), organic mass properly mixed to be used as gardening soil, acts like the earth, it has the ability to transmute organic elements and charge them with its own properties, weren't this so, composting would simply be impossible.
of course, if one were to add organic mass not properly composted (too raw to put it simply) this would affect the pH; but this is not done by organic growers who know what they are doing; considering that if you compost well all your ingridients, you can rest assured that your organic soil mix will keep a stable neutral pH. same applies when we are adding humus at the right ratios as well as teas such as banana peel teas.
there's a rule in organics growing that i took to heart, which is to start low when it is time to fetilize, as well as compost well. by slowly adding ingrients to your soup, it is very difficult to throw off your pH to a point where it becomes a problem for the plant.
i've been growing outdoors and in pots too, and if you grow in pots, you have to be extra careful, because as verite correctly pointed out, there's a limited ammount of earth-like conditions which are not able to absorb over-dosis.
peace.
of course, if one were to add organic mass not properly composted (too raw to put it simply) this would affect the pH; but this is not done by organic growers who know what they are doing; considering that if you compost well all your ingridients, you can rest assured that your organic soil mix will keep a stable neutral pH. same applies when we are adding humus at the right ratios as well as teas such as banana peel teas.
there's a rule in organics growing that i took to heart, which is to start low when it is time to fetilize, as well as compost well. by slowly adding ingrients to your soup, it is very difficult to throw off your pH to a point where it becomes a problem for the plant.
i've been growing outdoors and in pots too, and if you grow in pots, you have to be extra careful, because as verite correctly pointed out, there's a limited ammount of earth-like conditions which are not able to absorb over-dosis.
peace.