Author(s):

P Kamalakannan, D Elayaraja and S Sathiyamurthi

Abstract: The field experiment was carried out at Chinnathanakuppam village, Kurinjipadi taluk, Cuddalore district during November 2016 to September 2017. The experimental soil having sandy clay loam in texture (Typic Haplustalf) had the value of pH-7.0 and EC of 1.2 dsm^-1. The soil analysed low in organic carbon, low in alkaline KMnO₄- N, and low in Olsen-P and medium in NH₄OAC-K. The treatment consisted of four levels of potassium viz., K₅₀₀, K_550,K₆₀₀ and K₆₅₀ gram plant^-1. The treatments were evaluated with recommended dose of Nitrogen, phosphorus along with SOP foliar spray twice at 15 days interval after bunch emergence. The fertilizer schedule of 120: 45: 390 g of NPK plant^-1 were taken as control. Nitrogen and phosphorus were applied for all the treatment through urea and single superphosphate. The experiment was conducted in Randomized Block Design (RBD) with three replication. The growth characters viz., pseudo stem height, pseudo stem girth, number leaves plant^-1 and yield parameters viz., bunch weight and number of hands per bunch were recorded. The results of study clearly revealed that increase the K level from 500 gm plant^-1 to 650gm plant^‑1 consistently increased the growth and yield characters of poovan banana. By considering all the benefits application of potassium@ 600 gm^-1, recommended dose of nitrogen (120 gm plant^-1), phosphorus (45 gm plant^-1) along with Sulphate of Potash(SOP) foliar spray @ 2% recorded highest pseudo stem girth (56.25,60.25,68.29 and 72.34 cm), pseudo stem height (296.08, 385.77,490.45 and 505.22 cm) at 150, 210, 270 and 330 DAP, respectively. Regarding maximum number of leaves plant^-1. (50.75), maximum number of bunch weight (20.48) and highest number of hands per bunch (13.46) was recorded in treatment T₈. The lowest growth and yield characters values are noticed in T₁ (control) treatment.

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