When growing up, I would have to clean the chicken pens, and had to put the stuff in the garden work it in with a hoe...as did the horse droppings, cow stuff, and all the stuff from cleaning vegetables, made a heck of a garden.
Today it is easy to get mulch,good soil,organic anything.
That method can work for quite a while - this is basically what built America, in the beginning - but in the long run (over several generations), the soil is actually being depleted rather than built-up.
No-till farming/gardening is a different beast. Granted, you have to till rather good that first time, to break the surface up and amend that top layer of soil.. But after you lay that first cover crop, theres no more tilling.
In a no-till set-up, all that mess you got from the chicken pens, and the left over garden clippings, the grass clippings, the weeds you pulled, leftover food from the kitchen, leaves in the fall - it would all get composted. That compost would be worth too much to sell, and you'll never find that quality at and store - unless you 'know a guy' (you could do one better by taking the compost, adding more leaves and small amount of food scraps and running that all through a vermicomposting set-up). That compost, could be used in compost teas which are a way to increase microbial life in the soil; or can be used for top-dressing, which is the act of taking the compost itself and spreading it out on the ground or around the base of the important plants you're treating, and this increases the organic matter and nutrients available to the microbial life.
There's also a trick about never having bare soil... And down in a place like Texas, you might have to grow a lot of trees, to give the sun something to hit before it bakes the soil & ground cover.. But it's entirely do-able, it's just a lot of work.. You'd have to establish the trees (fruit, anyone?) with some clover/alfalfa/borage/vetch/rye/etc.. Probably in the fall..
If you read those books, you'll come to understand that what you're trying to 'feed' is the microbial life, not the plant. Plants feed on what is excreted from the microbial life, in the 'root zone' - very narrow area around each particular root. Plants excrete sugars, themselves, that attract this microbial life, and by controlling what sugars they excrete, the plant can control the amounts of different types of life, which directly influences what nutrients become available to the plant when that life dies, is consumed or excretes waste itself.
Miracle Gro made its millions by skipping the step of feeding the microbial life, instead feeding the plant with nutrients that are already plant-ready. Sounds great, right? Maybe? Not really, when you realize that microbial life are what actually hold the nutrients in the soil, and when they become 'plant ready', they also become water-soluble.. You didn't hear about farming fertilizers leaching into our water supply until they started using water-soluble, plant-ready, lets-skip-the-microbial-action, products in a bottle.
When you put this together, it shows a picture of chemical fertilizers trying to tell the plant what it needs instead of the plant telling the microbial life what it needs. How could we - who dose the liquid fertilizers - possibly know what a plant needs, better than it does itself?
It's all pretty interesting stuff..