Working with nature means using natural systems to produce food with less human energy and fossil fuels, and chemicals, and cutting down forests.
A quick quote from the referenced work:
""" The pragmatic and practical approach to the main body of this work largely omits reference to those visions or beliefs classifiable as spiritual or mystical; not because these are not a normal part of human experience, but because they are arrived at as a result of long contemplation or intense involvement with the mysteries that eternally surround us.
We may “dream" understanding, but it is something we cannot demand, define, or teach to others; it is for each of us to develop. There are things that nobody else can help us with, but in a book written to help people make real-life decisions, to build new landscapes, to regenerate damaged forests, and to lighten our load on earth, the present need is for clear and practical approaches. In the preceding chapters, well-tried and common- sense techniques and strategies of earth restoration have been described and figured.
All of this comes to naught if we, as a people, continue to invest in arms and destruction, to permit land abuse, and to fail to tackle the social and political impediments to reclaiming desertified and abused lands, or even to prevent the poisoning of land. Thus, the following sections give strategies for change in the social and economic areas of society.
These strategies may, in fact, be of more assistance to real change than the skills of land management, for society has far more competent farmers and engineers than it has ethical ... """
It requires less input, less labor, less land --- why isn't it already trashing the market by simply being much cheaper?
An imperfect analogy is that legalizing cannabis requires less labor & more funds than keeping it illegal, yet we're still hesitating to do that in many countries.
Humans (and thus most markets) have other incentives than simply having things for cheaper.