Nutrient status and crop productivity following a 14-year irrigated potato rotation study
2015
Mohr, R., Nelson, A., Tomasiewicz, D., McLaren, D., Monreal, M., Irvine, B., Khakbazan, M., Moulin, A., Derksen, D. and Volkmar, K. 2015. Nutrient status and crop productivity following a 14-year irrigated potato rotation study. Can. J. Plant Sci. 95: 351–360. Well-managed crop rotations contribute to high productivity and quality in subsequent crops, and neither excessively deplete nor increase soil nutrient levels. A field experiment was conducted in the year following completion of a 14-yr irrigated potato (Solanum tuberosum L.) rotation study to assess the impact of preceding rotation on soil P, K and micronutrient concentrations, and on soybean (Glycine max) productivity, yield and seed nutrient levels. Soybean was grown on six established rotations [potato with canola (PC), wheat (PW), canola–wheat (PCW), oat-wheat (POW), wheat–canola–wheat (PWCW), and canola underseeded to alfalfa–alfalfa–alfalfa (PCAA)] arranged in a randomized complete block design (RCBD) with four replicates. Soil nutrient level...
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