Abstract

Experiments conducted with different plant densities, time of fertilizer application and varieties revealed that a plant density of 100,000 plants/hectare (50 cm x 20 cm spacing) recorded quite high LAI, RGR, NAR and CGR of potato crop in most of the growth stages and this ultimately helped in producing high TGR and finally recorded high tuber yield per plant under this mild and short winter conditions of West Bengal. All growth parameters after their initial rise declined gradually as the crop progressed towards its maturity. Application of fertilizers (150, 100 and 100 kg/ha of N. p., and K,0 respectively) in two splits-half at planting and half at 25 days after planting was found most conducive for high rates of growth and development of this crop particularly at the early growth stages which ultimately produced maxium tuber yield per plant. Both Kufri Chandramukhi and Kufri Jyoti performed well under this conditions, however, Kufri Chandramukhi gave early harvest while Kufri Jyoti produced maximum tuber yield per piant.

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