Angelika Maier wrote:1.) I read it is very bad for all the soil critter to leave the soil exposed, this is the reason we mulch or cover crop. Just how long shouldn't it be bare? How about carrots, it needs some time until they sprout and cover the soil? Or if I don't get around to mulch for a week or so?
2.) I grow quite a few (100+) medicinal herbs, many of these can be described as Mediterranean plants others are just weeds. If you look at the environments they life it looks dry barren - what is the soil life there? Is there less life? Do these plants still grow better with more life?
3.) Why did you choose steiner preparations over other methods like EM or that Yatam thing, are there any advantages/disadvantages? How do the different methods compare?
4) This has nothing to do with biology: Everything Phosphorous goes in the compost first that it is not leached out, but for how long? We did incoorporate p at the last turning how long does it have to sit?
1.) yes, soil erodes in wind or by water washing it away, this means that those organisms living in that soil get blown or washed away with the soil.
For seeds, leave as small an area of exposed soil as possible (holes in the mulch which you plant through) or use transplants from your seed starting trays (one other possibility other than direct seeding).
2.) If a plant is grown or left to grow so you can make use of it someway, is it really a "weed". Plants that grow in "barren" areas are primary succession plants, those first comers that will condition the soil for the next wave of succession plants.
Just because they can grow in such conditions doesn't mean they won't grow in better conditions (usually). Those primary succession plants can get by without a thriving soil microbiosphere but they will thrive in soil rich in the microorganisms.
3.) I studied Steiner in one of my Graduate classes, then I modified his methodology with the goal of great results in less time and with less effort. I do use EM (of a sort since I also modified the method of making that too).
All these "concoctions" are designed to increase the soil microorganisms numbers or to install them where they aren't currently living, since this is the goal, great quantities of soil organisms, it is wisest to use a diverse set of methods and concoctions to arrive at the desired end.
By using a diverse set of methods and preparations we can have a very diverse, thriving soil biology that will help our plants thrive and survive catastrophic events like diseases, infestations, etc.
4.) Phosphorous in very high quantity can be detrimental to other nutrients availability to your plants. If you are building your soil microorganism counts, it will not remain in a free state for long, bacteria and fungi hyphae are always hungry and will shut down when their foods are not available or if the conditions become hostile to their survival. Once you have your microorganisms at good levels, all nutrients will be available all the time and you should not need to supplement any nutrient or mineral ever again. The microorganisms will recycle the nutrients continuously so as long as the soil life thrives all the nutrients will not leach away.