A knowledge condensed unusual: are we finally going to get along with the soil?

The two volumes are very interesting, firstly for their introductory texts that provide, in clear and affordable language bases on the soil life, so the causes and solutions to problems encountered by cultivating soil - the author also swears by the compost.

It also completely ignores the fungal kingdom, or fungi play a crucial role in soil biology. These are the only organizations in the world capable of feeding the lignin, the most abundant organic material created by life, and the result of this nutrition is humus.
That is to say that these are the only organisms capable of humus, without them, no humus, so no ground: coal reserves are from the pile of plants such horsetails and ferns as giant forms, or other species of non-fermentable trees grazed reptiles warm-blooded themselves as giants (the forests of huge horsetails then being pestilential swamp and without full soil as anaerobic, so making putrefaction which releases smelly gases) that have piled if not decomposed by fungi, unlike the forest hardwood floors or any healthy soil release a good smell of geosmin as full of humus and aerobic life. For we must add that the fungus can live in the presence of air, aerobic, thus peat bogs are formed (organic matter accumulates at the bottom of the water without being broken down since no air) and it is clear that when the author describes the compaction, waterlogging, asphyxiation of the soil generally lacks an important point by not stating that it ' is an important aerobic organism (if not the most important) of the soil is affected: the fungus. Without him, the lignin (wood) would be a foreign body in the soil (there is no bacteria can break it down into humus), the only organizations who can still nourish the fossilized and becomes irrecoverable for crops: When coal spreads, so the fossil organic material on the ground, it will 5000 years to degrade. (However that coal can be structured soil "poor", although it should be sure of its origin-often it comes from old railroad ties treated with creosote or polluted trees lourds- metals because it will there for a long time)

In this book approach the soil and plants is quite unique, each plant somehow his story, and the photos are very successful.
Soil conditions that the presence of the plant indicates (from the fact that it covers 100% of a given surface of the ground, otherwise the result is to qualify between different species) is first summarized in a round (green, yellow or red) and the list of characters indicators attached to the image of the plant, the author sets out a precise method when it comes to take stock of the state of soil that would covered with a multitude of different species. This color round is certainly not to be confused with the character "bad" of grass.

The excellent quality of color printing can be felt on the price.