Effect of organic nutrient inputs in Tea
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Date
2022-08-17
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palampur
Abstract
A field experiment was conducted at Research farm of Department of Tea Husbandry
and Technology CSK HPKV, Palampur (H.P.) during March, 2021- November 2021 to
evaluate the effect of organic nutrient inputs in Tea [Camellia sinensis (L.) O. Kuntze].
The experiment comprised of 10 treatments with control (T1), FYM @ 20t/ ha (T2),
vermicompost @ 10t/ha (T3), Split doses of vermicompost @ 5t/ha + 5 t/ha (T5), FYM
@ 20t/ha + Jeevamrit @ 10% (T6), Vermicompost @ 10t/ha + Jeevamrit @ 10% (T7),
FYM @ 20t/ha + vermiwash @ 10% (T8), Vermicompost 10t/ha + vermiwash @ 10%
(T9) and Jeevamrit @ 10% (T10). The experiment was laid out in Randomised Block
Design (RBD) with three replications. The soil of experiment field was silty clay loam
in texture, acidic in nature, low in Nitrogen, medium in Phosphorus and Potassium.
Results revealed that the growth, yield attributes and yield of tea increased with
application of vermicompost @ 10t/ha + Jeevamrit @10%. Significantly higher gross
return, net return and additional net return over control were recorded in treatment
having vermicompost @ 10t/ha + Jeevamrit @10%. Irrespective of different treatments,
the quality of black made tea was also influenced by seasonal effect. Theaflavins,
thearubigin, total colour and brightness were higher in pre monsoon season followed by
post monsoon and lower value was recorded in monsoon season. Among all the
treatments, significantly higher theaflavins, thearubigin, total colour and brightness
were recorded in vermicompost @ 10t/ha + vermiwash @10% compared to control.
Application of vermicompost @10t/ha + Jeevamrit @10% recorded significantly higher
available nutrients N, microbial count and microbial biomass and application of
vermicompost @ 5t/ha+ vermicompost @5 t/ha recorded significantly higher P and K in
soil at end of experiment in comparison to the control at the depth of 0 - 22.5 cm.