Document Type : Research Article
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Abstract
Abstract
To evaluate the influence of nitrogen rate and split application method on tuber yield and other quantitative characteristics of different potato cultivars, a 2-yr experiment was conducted at Khorasan Razavi Agricultural and Natural Resources Research Center. Experimental treatments consisted of four nitrogen rates (0, 90, 180 and 270 kg N ha-1) with two split applications (emergence and hilling stages) or three split applications (planting, emergence and hilling stages) and six potato cultivars (Fontane, Kuras, Agria, Miriam, Cosmos and Picasso) that were arranged in a randomized complete block split-split plot design. Shoot dry weight, average stem length, tuber number per plant, total tuber yield, marketable tuber yield (
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