So how are you getting the Ca in the soil?
What you are talking about is real AG. Us stoners are putting pots or mounds on native soil. Two very different things, that will soon merge. So I am all ears on how you would approach things, however understand the largest amount we are allowed to grow here in cali, and only in certain parts of the state, is 20,000 sq ft, or about half an acre.
If compaction from clay is a problem plant a crop like radishes or potatoes or something with bulbous roots that can break clay layers first. This should break up a root restricting layer.
Than I would add Ca sulfate carbonate and phosphate from organic sources as a top dress the next season and water it in.
It all depends on where you are. If you are in a rainy coastal region, erosion is an issue. Not where I am. And if you have too much of another cation, you want some nutrient runoff, at least until the soil is balanced. In commercial ag tilling, year after year does allow the rain to wash everything away, and the sun and wind then destroy all your OM. But like Hazy said, that doesn't really apply here. I was being sarcastic about Brazil, obviously chopping down the rainforest isn't a good model.
I disagree with organic vs conventional for arguing quality. Quality comes from high calcium and lots of available trace minerals. How you choose to get there is dependant upon where you are, what you need, whats locally available, and your means of application. It shouldn't be restricted by some bullshit government certification. Most commercial organic produce in the USA actually has a lower mineral content. Keyword there is commercial, not organic. Commercial farms are capitalizing on lowering their inputs and selling their product for more because they can afford organic certification and selling as "organic". But 90% of organic tomatos at the supermarket are still pale and taste like celery. Those commercial organic farms could careless about quality or nutrient density. They'll sell you a supplement for that. They are making money and selling at a higher price with less fertilizer input. The whole organic paradigm is flawed.
Max, if you can send an extra sample in for science, find some clay under something like a piece of inert material like a cement block where you can see worms going in and out of. Almost like clay worm castings. Send that in too. I sent it in and saw significant and interesting differences. Ill post results soon. I'm going to try planting in it.
Forests are the most complete cycles for nitrogen and carbon, but not necessarily for our own production. If you read Tiejens, he clearly states that Calcium Carbonate mineral soils are the most productive and yield the best quality all over the world. Forests like the redwoods or the boreal forest are highly specific and adaptive ecosystems that are closed systems and recycle nitrogen and carbon extremely efficiently. Those forest floors may be teaming with life, but not very productive for our own production. Those soils tend to be acidic and lack cations, as most of the minerals in such a system are in flux. So should we cut down those forests and grow food on em? I disagree. Leave those closed ecosystems as oxygen farms for the planet. No use in mimicking them, because modern farming, no till, organic, whatever, depends on a HARVEST, where you remove part of the plant and take it somewhere else. So that is no longer a closed system in itself. If you lived on your farm and only ate the food it produced and then used your own human manure to fertilize, that would be a closed system. But you'd also have to bury your body there too. Thats the only way you are mimicking a closed forest system on any kind of a farm.
What if the clay compaction is so hard the daikon grow square and up out of the soil? Have u ever tried to do what you're suggesting. Doesn't look like itIf compaction from clay is a problem plant a crop like radishes or potatoes or something with bulbous roots that can break clay layers first. This should break up a root restricting layer.
Than I would add Ca sulfate carbonate and phosphate from organic sources as a top dress the next season and water it in.
What if the clay compaction is so hard the daikon grow square and up out of the soil? Have u ever tried to do what you're suggesting. Doesn't look like it
I think you've spent too much time growing in a tent and not enough time on the field
(Till + amendments) x compost tea = live soil. IMO.