On the Sri Lanka Tea Soil

DOI Web Site Web Site 1 Citations 3 References

Bibliographic Information

Other Title
  • スリランカの茶園土壌
  • スリランカ ノ チャエン ドジョウ

Search this article

Description

Sri Lanka tea soil were red yellow podzolic soils which belonged to residum, colluvium or local alluvium derived from a wide variety of crystalline metamorphic rocks of the pre-canbrian.The pH value of tea soil was lower than in the uncultivated jungle soils. The humus content decreased with increasing depth both in tea soil and uncultivated soils and it was higher in the latter than the former. The exchangeable Ca and Mg contents were also appreciably higher in the uncultivated soils.<BR>Difference absorption spectra of humic acid of podzolic red yellow and humic soil was determined. Response of phenolic OH in the difference absorption spectra of red yellow soil was lower than that of Japan, Strong difference absorption peak was observed at 250 mu in the spectra of humic soil.<BR>Nitrification was stronger than ammonification in Sri Lanka tea soil. Nitric nitrogen in soil was increased by the application cattle manure and the content of NO3-N decreased and content of NH4-N increased in soil by the application of black tea waste and paddy husk.

Journal

Citations (1)*help

See more

References(3)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top