Study on potato (Solanum tuberosum L.) based crop sequences under rainfed mid-hill condition of Uttarakhand
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Date
2009-07
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
To evaluate eight potato based crop sequences viz., potato-carrot, potato-turnip, potato- radish, potato-cauliflower, potato-cabbage, potato-broccoli, potato-pea and potato-amaranthus, an investigation was carried out at Vegetable Science Research unit of Hill Campus Ranichauri (G. B. Pant University of Agriculture & Technology), Tehri Garhwal (Uttarakhand) during spring-summer (potato), rainy (carrot, turnip, radish, cauliflower, cabbage) and rainy-autumn (broccoli, pea and amaranthus) season, 2008. The experiment was laid out in Randomized Complete Block Design with three replications. During the study, the yields of individual crops were recorded and based on selling prices, potato equivalent yield (PEY), production efficiency (PE), land use efficiency (LUE) and economics of the sequences were worked out. In order to assess the residual effect of first crop (potato) on subsequent crops of the sequences, soil analysis to different soil parameters (pH, organic matter, available N, P, and K) was also performed.
Findings of the investigation revealed that amongst eight sequences, potato-radish proved the best in respect to potato equivalent yield (626.66 qha-1) and net profit (Rs. 1,35,241.70 ha-1). This sequence had recorded an additional net income of Rs. 90,700.70 ha-1 over the conventional sequence, potato-amaranthus. In addition, the other sequences which showed higher profitability in the investigation were potato-cabbage (Rs. 1,07,041.70 ha-1), potato-broccoli (Rs. 1,04,175.00 ha-1), potato-carrot (Rs. 91,375.00 ha-1) and potato-pea (Rs. 85,191.66 ha-1) in decreasing order.
Based on the overall performance, it can be concluded that under the prevalent climatic/ cultivation conditions of mid hill rainfed Uttarakhand, potato-radish is the most profitable/suited sequence, hence, recommended for farmer‟s commercial cultivation.