Effect of organic amendment on stem canker and black scurf disease of potato (Solanum tuberosum)

M. M. Rahman; M. A. Ali; T. K. Dey; Md. monirul Islam; M. U. Ahmad; K. M. Khalequzzaman

doi:10.14393/BJ-v32n2a2016-29333

Authors

M. M. Rahman Tuber Crops Research Sub-centre
M. A. Ali Tuber Crops Research Sub-centre
T. K. Dey Pulses Research Centre
Md. monirul Islam Universiti Putra Malaysia
M. U. Ahmad Tuber Crops Research Centre
K. M. Khalequzzaman Spices Research Centre

DOI:

https://doi.org/10.14393/BJ-v32n2a2016-29333

Keywords:

Organic matter, stem canker, black scurf, solanum teberosum

Abstract

: An experiment was conducted at Tuber Crops Research Centre, BARI, Bogra during 2008-2009 to evaluate the organic amendment for controlling the stem canker and black scurf of potato. The different kinds of organic amendments were: T₁ =Poultry refuse (PR) at 4 t ha^-1, T₂ =PR at 5 t ha^-1, T₃ =PR at 6 t ha^-1, T₄ =Mustard oil cake (MOC) at 300kg ha^-1, T₅ =MOC at 500kg ha^-1, T₆ =Neem oil cake (NOC) at 300kg ha^-1, T₇ =NOC at 500kg ha^-1, T₈ =Sawdust burning and T₉ = Control. The experiment was laid out in a randomized complete block design (RCBD) with four replications. The organic amendment significantly influenced the disease incidence, yield attributes and yield of potato. The lowest disease incidence (17.5%) and per cent disease index (9.99) were found in T₃(poultry waste at 6 t ha^-1). The minimum russet, deformed and Sclerotia infected tubers were also recorded in poultry waste at 6 t ha^-1. The highest healthy tubers and tuber yield were found in the same treatment. Therefore, poultry manure 6 t ha^-1 along with recommended dose of chemical fertilizer can be recommended to produce healthy tubers and maximum tuber yield of potato.