以马铃薯品种费乌瑞它为指示品种，采用OPT配方施肥方法，研究了氮、磷和钾肥配比对马铃薯产后品质及其耐贮性的影响。结果表明，当施N 180 kg/hm2、P2O5 135 kg/hm2、K2O 0～135 kg/hm2时，马铃薯块茎中氮、磷、钾、钙、铁、锌含量达到最高；氮肥施用量对块茎中干物质、粗淀粉、还原糖、维生素C含量的影响较大，而磷肥、钾肥施用量的影响较小。当施N 180 kg/hm2、P2O5 135 kg/hm2、K2O 135 kg/hm2，马铃薯贮藏260 d时，贮藏损失率最低，为4.37%，其营养品质保持最好，该施肥配比与当地常规的施肥配比相一致。

Favorita potato cultivar is used as the test material in the research. The effects of different fertilizers on potato's quality after harvest and storability are studied by the method of OPT formula fertilization. The result shows that the highest of nitrogen， phosphorus， potassium，calcium，iron and zinc in potato tubers were found when N 180 kg/hm2、P2O5 135 kg/hm2、K2O 0~135 kg/hm2 were applied. The amount of dry matter， crude starch， reducing sugar and vitamin C in the tubers were significantly affected by the application of nitrogen fertilizer， but the application of phosphorus and potassium fertilizer had little influence. Besides that， the storage loss rate of potato was the lowest(4.37% at 260 days) and nutritional quality to maintain the better when N 180 kg/hm2、P2O5 135 kg/hm2、K2O 135 kg/hm2 are applied， which was consistent with the conventional fertilization ratio.

S532

现代农业产业技术体系专项资金资(CARS-10)。