Effects of Different Foliar Fertilizers and Base Fertilizers on the Yield and Quality of Chinese Yam
Objective:This study aimed to evaluate and compare the effects of different treatments by various types or formulas of foliar fertilizers and base fertilizers on the yield and quality of Chinese yam.Methods:The Chinese yam samples treated with differ-ent foliar fertilizers and base fertilizers were obtained through the field experiments.Simple random sampling method was used to obtain average weight,diameter and length of yams,and all yams were weighed to get the yield data.The drying method,the an-throne-sulfuric acid method and the Kjeldahl method were used to determine the contents of moisture,polysaccharide and protein,respectively,and the contents of amino acids were determined by using an automatic amino acid analyzer.The contents of allantoin,uracil and adenosine were analyzed simultaneously using the high-performance liquid chromatography(HPLC)approach.Results:The yield of yam treated with foliar fertilizer was higher,while the content of amino acids,protein and allantoin was higher in the yam treated with base fertilizer.Conclusion:The treatments by foliar fertilizers YY3,YY4 and YY6 could significantly improve the yield of Chinese yam,but they could not increase the contents of nutritious components.And the treatments by base fertilizers could also increase the yield of Chinese yam.Although the enhancing effects of base fertilizers was weaker than that of foliar fertilizers,they could significantly increase the contents of amino acid,protein,allantoin and other nutrients.
Chinese yamFoliar fertilizerBase fertilizerYieldQualityContent determination
万方数据
维普
