Download Advances in Soil Science: 15 by J. M. Barea (auth.), B. A. Stewart (eds.) PDF

By J. M. Barea (auth.), B. A. Stewart (eds.)

The learn of soils has taken on elevated value simply because a quickly increasing inhabitants is putting calls for at the soil by no means prior to experi­ enced. This has resulted in a rise in land degradation. Land degradation is among the such a lot critical difficulties dealing with mankind. quantity eleven of Advances in Soil technology was once committed fullyyt to this severe zone of soil technology. The editors of that quantity, R. Lal and B.A. Stewart, outlined soil degradation because the decline in soil caliber attributable to its misuse by means of people. They additional acknowledged that soil degradation is a big quandary for no less than purposes. First, it undermines the efficient ability of an environment. moment, it impacts international weather via changes in water and effort balances and disruptions in cycles of carbon, nitrogen, sulfur, and different parts. via its effect on agricultural productiveness and surroundings, soil deg­ radation ends up in political and social instability, improved cost of deforesta­ tion, extensive use of marginal and fragile lands, sped up runoff and soil erosion, pollutants of average waters, and emission of greenhouse gases into the ambience. actually, soil degradation impacts the very textile of mankind.

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A. El-Swaify. 1988. Interaction of vesicular-arbuscular mycorrhizal fungi with erosion in an oxisol. Appl. Environ. Microbiol. 45:945-950. Hardie, K. 1985. The effect of removal of extraradical hyphae on water uptake by vesicular-arbuscular mycorrhizal plants. New Phytol. 101:677-684. , and L. Ley ton. 1981. The influence of vesicular-arbuscular mycorrhiza on growth and water relations of red clover. I. In phosphate deficient soil. New Phytol. 89:599-608. J. Bagyaraj. 1988. Effect of crop rotation on native vesicular arbuscular mycorrhizal propagules in soil.

Effect ofvesicular-arbuscular mycorrhizal VA Mycorrhizae and Soil Fertility 37 fungi and capt an on growth and N z fixation by Rhizobium-inoculated field beans. Can. J. Soil Sci. 68:143-149. E. Leggett. 1989. Microbially mediated increases in plant-available phosphorus. pp. 199-228. C. ), Advances in agronomy. Academic Press, New York. G. 1988. Mycorrhizal interactions with the rhizosphere microflora: The mycorrhizosphere effect. Phytopathology 78:366--371. , and B. Mosse. 1987. Experiments on competitiveness of three endomycorrhizal fungi.

Azcon-Aguilar. 1983. Interactions between phosphate solubilizing bacteria and VA mycorrhiza to improve the utilization of rock phosphate by plants in non acidic soils. In: 3rd International Congress on Phosphorus Compounds, Brussels. , C. Azcon-Aguilar, and R. Azcon. 1987. Vesicular-arbuscular mycorrhiza improve both symbiotic N2 fixation and N uptake from soil as assessed with a 15N technique under field conditions. New Phytol. 106:717-725. , C. Azcon-Aguilar, and R. Azcon. 1988. The role of mycorrhiza in improving the establishment and function of the Rhizobium-legume system under field conditions.

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