Properties and fertility capability of skeletal soils
1993
Irb Kheoruenromne | Anchalee Suddhiprakarn | Audthasit Wongmaneeroj (Kasetsart Univ., Bangkok (Thailand). Faculty of Agriculture. Dept. of Soil Science)
Study on vital properties of skeletal soils in the North, Central Highlands and northern part of Central Plain, Thailand was conducted by using field method to identify soils type and their morphology and laboratory analysis on physical and chemical properties of the soil samples collected from profiles of five representative soils namely Mae rim series, Pong Thong series, Li series, Chiang Khan series and Nokhon Sawan series. Results of the study reveals that these soils are characteristically upland soils occupying sloping terrain with slopes up to 25 percent. Their profile models show that they are moderately deep to deep soils with different kinds of skeletal materials ranging from ironstone nodules to quartz fragments. Their basic fertility is poor and they have moderate adversary exchange properties. Their overall characteristics illustrate soils with low to very low potential for crop production. The use of these soils needs high agricultural technologies and the risk in their use for crop production is generally high.
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Эту запись предоставил Kasetsart University