EurekaMag.com logo
+ Site Statistics
References:
52,725,316
Abstracts:
28,411,598
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

The grouping of soils with similar charge properties as a basis for agrotechnology transfer


Australian Journal of Soil Research 25(3): 275-286
The grouping of soils with similar charge properties as a basis for agrotechnology transfer
A set of 94 variable charge soils (Oxisols and Ultisols) from humid tropical Queensland [Australia] has been formed into three groups on the basis of their surface charge characteristics. Mean curves of basic cation exchange capacity (CECB) against pH, total cation exchange capacity (CECT) against pH, and anion exchange capacity (AEC) against pH for each group at various soil depths were derived, to describe the essential features of each group, designated as Type 1, Type 2 and Type 3 soils. Type 1 soils have high CEC and low AEC, Type 2 soils have low CEC and low AEC, and Type 3 soils have low CEC and high AEC. A number of statistical devices were employed to illustrate the clear separation of the three groups. Additional Oxisol and Ultisol soils from southern China, Peru and the south-eastern United States were successfully allocated to our three groups, but this was not possible for some Andisols from Papua New Guinea. Aspects of possible different management requirements of each group are discussed.


Accession: 001709448



Related references

Grouping soils with similar properties for areal water budgeting and moisture mapping. Agricultural Systems 20(3): 195-218, 1986

Oceania benchmark sites network for agrotechnology transfer a pacific regional proposal for agrotechnology transfer. South Pacific Journal of Natural Science 7: 22-44, 1985

Assessment of intersite agrotechnology transfer for benchmark soils. Research extension series College of Tropical Agriculture and Human Resources University of Hawaii Cooperative Extension Service: (42) 55-56, 1984

The soils of Mondha village (Nagpur) for agrotechnology transfer. NBSS Publication (11): 65, 1986

The Benchmark Soils Project - an innovative approach to agrotechnology transfer. Abstract of Papers CLAMATROPS Conference on Classification and Management of Tropical Soils, Kuala Lumpur, Malaysia, August 1977: 60, .

Minimum data sets for agrotechnology transfer on Vertisols and associated soils in India. Proceedings of the International Symposium on Minimum Data Sets for Agrotechnology Transfer, Patancheru, India: 11-23, 1984

Procedures and guidelines for agrotechnology transfer experiments with maize in a network of Benchmark soils. Benchmark Soils Project Technical Report (3): 64, 1982

Studies on electrokinetic properties of constant charge soils and variable charge soils I. Effect of cation adsorption and pH. Acta Pedologica Sinica 36(3): 354-360, 1999

Studies on electrokinetic properties of constant charge soils and variable charge soils II. Effect of anion adsorption and pH. Acta Pedologica Sinica 37(1): 62-68, 2000

Research on the transfer of agrotechnology: final report of the Puerto Rico Benchmark Soils Project, 1975-1981. Research on the transfer of agrotechnology: final report of the Puerto Rico Benchmark Soils Project, 1975-1981: 155, 1982