Titlebook: Managing Organic Matter in Tropical Soils: Scope and Limitations; Proceedings of a Wor C. Martius,H. Tiessen,P. L. G. Vlek Conference proce

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AXIOM

帽子

The role and function of organic matter in tropical soils,ormation of tropical lands for agriculture exploits SOM, and in particular nutrient reserves. The process of exploitation is accelerated in the tropics by the necessity to increase agricultural production, largely through agricultural intensification, to overcome inadequate nutrition, to satisfy pop

SEEK

Soil organic carbon sequestration in tropical areas. General considerations and analysis of some ed SOC sequestration were higher for HAC soils (30.8 – 59.4 tC. ha., with the higher levels in the less Mg- and Na-affected Vertisol). Sheet erosion is a serious problem for Vertisol with high Mg and Na on exchange complex, causing high dispersability of fine elements. Thus, the lower SOC levels in th

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(Tropical) soil organic matter modelling: problems and prospects,sformations in the soil appear to be lacking. Techniques for direct measurement of pool sizes and characterisation of the relevant properties of the variety of organic substances would represent a major step towards verification of models and the revision of inherent concepts. The non-nutrient funct

GROWL

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情愛

Management of organic matter in the tropics: translating theory into practice,ecision tree has been developed for testing hypotheses about the resource quality parameters that affect nitrogen release patterns and rates. The decision tree is linked to an Organic Resource Database (ORD) with detailed information on the resource quality of agroforestry trees and leguminous cover

Astigmatism

Critical aspects of organic matter management in the Tropics: the example of India,ed at. For instance: with cattle dung and human excrements, conversion into biogas is considered necessary; farmer participatory appraisal and emphasis on dual purpose legumes are found to be essential in spreading green manures, and non-palatability to cattle with a pre-composting step seem vital t

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