SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 5 pps

SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 5 pps

SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 5 pps

... Reduction of damping- off diseases in soil from indigenous Mexican agroecosystems, in Agroecology, Researching the Ecological Basis for Sustainable Agriculture, Gliessman, S. R., Ed., Springer-Verlag, ... by CRC Press LLC CHAPTER 5 Mycorrhizal Interactions with Plants and Soil Organisms in Sustainable Agroecosystems J. Pérez-Moreno and R. Ferrera-Cerrato INTRODUCTION Althoug...
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SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 1 ppsx

SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 1 ppsx

... methylene-blue staining (second bar at each depth) in INTA and CONVB in 1990. CONVB = conventional farming system since 19 85 on low-organic matter soil; INTA = integrated farming system since 19 85 on ... Cataloging -in- Publication Data Soil ecology in sustainable agricultural systems / edited by Lijbert Brussaard and Ronald Ferrera-Cerrato. p. cm. Proceedings of a sympos...
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SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 2 ppsx

SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 2 ppsx

... 23 .5 2 3 .5 16 4.7 6 .5 9.6 31 .5 Loam 1 7.1 23 3 .5 28.2 45. 6 71.2 2 4.1 85 5.3 26.2 36 .5 71.7 Clay 1 6.6 230 6.1 53 .5 76.0 86.4 2 4.7 1 85 5.6 54 .6 77.2 88 .5 © 1997 by CRC Press LLC that the grazing ... Relative Increase in C Mineralization after Drying, Fine-Sieving, and Rewetting of Soil Samples in Comparison with Drying/Rewetting Only (%) in Sandy, Loamy, and...
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SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 3 potx

SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 3 potx

... UK, pp. 355 –366. Coleman, D. C., 19 85. Through a ped darkly: an ecological assessment of root -soil- microbial-faunal interactions, in Ecological Interactions in Soil, Fitter, A. H., Atkinson, D., ... communities in conventional and no- tillage soils. Soil Sci. Soc. Am. J., 57 :392–399. Blevins, R. L., Smith, M. S., and Thomas, G. W., 1984. Changes in soil properties under no...
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SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 4 doc

SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 4 doc

... Plant Soil, 151 : 151 –1 65. © 1997 by CRC Press LLC geometry of the root -soil system and the required transport distances. In mixed cropping systems (including grasslands), the belowground interactions ... Press LLC remaining roots increased while dry weight decreased. A slight net immobi- lization of minerals of N and P during autumn appeared in CONV but not in INT. During the n...
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SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 6 pptx

SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 6 pptx

... Mg (cmol[+]/kg) Forests 7. 05 0 .54 5 19.0 5. 2 Bush fallow perm. 4.39 0.336 14.6 3.3 Bush fallow new 5. 57 0.373 13.9 4.2 Alley cropping perm. 4.83 0. 355 13 .5 3.3 Alley cropping new 5. 35 0.4 35 17 .5 3.6 Pueraria ... role in low-input agricultural systems. Their casting activity involves up to 11.6% of the organic carbon and 12.9% of the total nitrogen of the 0 to 15 cm tops...
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SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 7 (end) pptx

SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 7 (end) pptx

... many of the great gains in production made in the green revo- lution by use of high-yielding varieties with high inputs of inorganic fertilizer cannot be maintained indefinitely. Among the causes ... available is insufficient to satisfy the needs for pro- duction. Significant input of N to replace that removed in harvest may be achieved in farming systems incorporating N-fixing spec...
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organic. soil quality in organic agricultural systems

organic. soil quality in organic agricultural systems

... Quality Soil Building and maintaining soil quality is the basis for successful organic farming. However, before developing a soil management plan focused on soil quality in organic systems, ... (See page 8 for ordering instructions.) Building and maintaining soil quality is the basis for successful organic farming. Periodic soil testing will help determine soil quali...
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Fate of Pharmaceuticals in the Environment and in Water Treatment Systems - Chapter 5 pot

Fate of Pharmaceuticals in the Environment and in Water Treatment Systems - Chapter 5 pot

... Persistence in Soil 127 5. 4 Transport of Veterinary Medicines in Soil Systems 128 5. 4.1 Leaching to Groundwater 128 5. 4.2 Runoff 129 5. 4.3 Drain Flow 129 5. 4.4 Uptake into Biota 129 5. 5 Modeling Exposur ... been wellstudiedinrecentyears,andalargebodyofdataisnowavailable. 5 This chapter Contents 5. 1 I ntroduction 123 5. 2 Inputs of Livestock Medicines to the Envi...
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Assessing the Hazard of Metals and Inorganic Metal Substances in Aquatic and Terrestrial Systems - Chapter 5 ppsx

Assessing the Hazard of Metals and Inorganic Metal Substances in Aquatic and Terrestrial Systems - Chapter 5 ppsx

... 5. 57 50 th Percentile 7.8 4.09 51 .20 5. 74 17. 15 2.44 30. 45 39.84 82. 05 90 th Percentile 8.1 9.27 103.4 12.13 62 .57 8.88 237.7 156 .29 3 05. 5 95 th percentile 8.2 12.79 1 15. 5 14 .52 ... waters, sediments, and soils incorporating a discrete site/electrostatic model of ion-binding by humic substances. Comput Geosci 20:973–1023. Tipping E. 1998. Humic ion-binding...
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