Effect of soil management on some physical properties of a red yellow podzolic tea soil [Sri Lanka]
1982
Sandanam, S. | Anandacumaraswamy, A. (Tea Research Inst. of Sri Lanka, Talawakelle)
An evaluation of the effect of some soil management practices on the physical properties of tea soils showed that shortly after old seed tea is uprooted in order to replace it with clonal tea the saturated infiltration rate, total pore space and percentage macropore space were relatively high (15cm h-1, 67.55 and 39.25 respectively). In soil that was left bare after such uprooting these soil physical properties had deteriorated. Growing grasses after uprooting old tea for the purpose of soil reconditioning increased organic carbon content, percentage macrospore space and infiltration rate (6.70, 46.78, 21.6 cm h-1) respectively. In soil that was under clonal tea for a period of about 17 years the bulk density was higher and the total and macropore volume were lower than in the soil from which seed tea had been uprooted a few days before making the measurements. Available water capacity was linearly related to organic carbon content and curvilinearly related to total pore space. The relationship between infiltration rate and macropore space was exponential
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