PERSISTENCE OF PHORATE IN BETELVINE LEAVES

M. M. KRISHNAMURTHY; D. K. SARKAR; K. THIRUMALA RAO and G. P. V. REDDY

doi:https://doi.org/10.29321/MAJ.10.A02123

Madras Agricultural Journal

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PERSISTENCE OF PHORATE IN BETELVINE LEAVES

Author: M. M. KRISHNAMURTHY, D. K. SARKAR, K. THIRUMALA RAO and G. P. V. REDDY,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 75, Issue: sep-oct,

DOI:https://doi.org/10.29321/MAJ.10.A02123

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Abstract

The persistence of phorate in the leaves of Machavaram non-pungent local variety betelvine (Piper betel L.) was prolonged; it dissipated below the detectable limit on the 30th day at 1.25 and 2.50 kg a. i./ha and on the 45th day at 3.75. 5.00, 6, 25, 7.50, 8.76 and 10. 00 kg a. i./ha. Rate of dissipation was more pronounced at the initial stages.

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