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Phosphorus in Action
Phosphorus (P) is a finite resource which is essential for life. It is a limiting nutrient in many ecosystems but also a pollutant which can affect biodiversity in terrestrial ecosystems and change the ecology of water bodies. This book collects the latest information on biological processes in soil P cycling, which to date have remained much less understood than physico-chemical processes. The methods section presents spectroscopic techniques and the characterization of microbial P forms, as well as the use of tracers, molecular approaches and modeling of soil-plant systems. The section on processes deals with mycorrhizal symbioses, microbial P solubilization, soil macrofauna, phosphatase enzymes and rhizosphere processes. On the system level, P cycling is examined for grasslands, arctic and alpine soils, forest plantations, tropical forests, and dryland regions. Further, P management with respect to animal production and cropping, and the interactions between global change and P cycling, are treated.
Biological Approaches to Sustainable Soil Systems
Global agriculture is now at the crossroads. The Green Revolution of the last century is losing momentum. Rates of growth in food production are now declining, with land and water resources becoming scarcer, while world population continues to grow. We need to continue to identify and share the knowledge that will support successful and sustainable
Handbook of Soil Sciences (Two Volume Set)
An evolving, living organic/inorganic covering, soil is in dynamic equilibrium with the atmosphere above, the biosphere within, and the geology below. It acts as an anchor for roots, a purveyor of water and nutrients, a residence for a vast community of microorganisms and animals, a sanitizer of the environment, and a source of raw materials for co
Below-ground Interactions in Tropical Agroecosystems
Below-grownd interactions are often seen as the 'dark side' of agroecosystems, especially when more than one crop is grown on the same piece of land at he same time. this book aims to review the amount of light he past decade of research has shed on this topic. It also aims to review ohw far we have come in unravelling the positive and negative aspects of these interactions and how, in dialogue with farmers, we can use the generic principles that are now emerging to look for sita-specifics solutions.
Biofertilizers for Sustainable Soil Management
The alkaline calcareous nature, high pH, salinity, heavy metals pollution, and low organic matter content of soils in many parts of the world have diminished the soil fertility and made essential nutrients unavailable to crops. To cope with the poor availability of soil nutrients, improve soil health, and feed the fast-growing global population, the farming community is using millions of tons of expensive chemical fertilizers in their fields to maintain an adequate level of nutrients for crop sustainability as well as to ensure food security. In this scenario, the exploitation of biofertilizers has become of paramount importance in the agricultural sector for their potential role in food saf...
Phosphorus in Agriculture: 100 % Zero
The title ‘Phosphorus in Agriculture: 100 % Zero’ is synonymous for make-or-break. And it stands up to the promise. This book sends an important message as it delivers background information, intrinsic hypotheses, validation approaches and legal frameworks, all for balanced phosphorus fertilization in agriculture. This implies firstly that the phosphorus requirement of crop is fully satisfied by applying exclusively fertilizers which contain the nutrient in completely available form. Secondly, environmental demands through eutrophication and hazardous contaminants must not be compromised. The book identifies equally knowledge gaps and deficits in the transformation and implementation of research into practice. Bottom line is that research delivers the tools for a sustainable phosphorus management while legal frameworks are insufficient.
Nature's Plow
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Beliefs that Bias Food & Agriculture
The book answers 10 questions addressed to the author in various forms. Some are personal, while others relate to global issues. All are answered with candor and detailed explanation. The answers will not suit those who seek confirmation of popular viewpoints, nor will they suit those who insist they are doing good without having knowledge of what they are really doing. But they will admirably suit those extremely important persons from all walks of life who are open to new knowledge, who can accept challenges to their beliefs and received knowledge. The answers cover such topics as: - why livestock are critical to food security - why free trade and markets can't solve food shortages - why aid shouldn't insist poor countries follow our model - how to reconcile science and commerce with popular ideals - how gross domestic happiness can be a serious topic - how more food can be produced with less land and fertilizer - why labels like Buddhist and vegetarian confuse life - what traditional wisdom is critical to development - how misrepresentation fuels fears about climate change - why small farmers and foreign agribusiness must coexist
