• ISSN 1008-505X
  • CN 11-3996/S
LIU Hong-en, HU Cheng-xiao, NIE Zhao-jun, SUN Xue-cheng, TAN Qi-ling. Interactive effects of molybdenum and phosphorus fertilizers on grain yield and quality of Brassica napus[J]. Journal of Plant Nutrition and Fertilizers, 2012, 18(3): 678-688. DOI: 10.11674/zwyf.2012.11351
Citation: LIU Hong-en, HU Cheng-xiao, NIE Zhao-jun, SUN Xue-cheng, TAN Qi-ling. Interactive effects of molybdenum and phosphorus fertilizers on grain yield and quality of Brassica napus[J]. Journal of Plant Nutrition and Fertilizers, 2012, 18(3): 678-688. DOI: 10.11674/zwyf.2012.11351

Interactive effects of molybdenum and phosphorus fertilizers on grain yield and quality of Brassica napus

  • Two years (2006-2007 and 2007-2008) pot experiments with yellow-brown soil were conducted to investigate the interactive effects of molybdenum and phosphorus fertilizers on grain yield and oil content, oil yield, protein content, eucic acid and sulfuric glucoside contents and fatty acid composition of oil of Brassica napus seed. Both Mo and P fertilizers were applied at three levels (Mo 0, 0.15, 0.30 mg /kg soil; P2O5 0, 0.20, 0.40 g /kg) and nine treatments were formed. The results indicate that the grain yield and biomass, oil content, oil yield, oleic and linoleic acid contents of grains of Brassica napus seed are increased significantly under the application of molybdenum fertilizer, while the contents of stearic acid, sulfuric glucoside and stearic acid are decreased remarkably. The grain and oil yields, biomass and linoleic acid contents are significantly increased under the application of P, while the stearic acid, sulfuric glucoside and eicosenoic acid contents are markedly decreased. The molybdenum fertilizer and P fertilizer applications have remarkable synergistic effects on the improvement of grain yield, oil yield and oleic acid content, and the reduction of eucic acid content of rapeseeds. These results obtained in this study suggest that both molybdenum fertilizer and phosphorus fertilizer are conducive for the improvement of grain yield and quality of Brassica napus seeds, and co-application of Mo and P fertilizers has a better effect.
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