不同施肥水平下叶面肥对菜用甘薯生长的影响

Effects of foliar fertilizers on the growth of vegetable sweetpotato under different fertilization levels

为探索不同叶面肥和减氮施肥对菜用甘薯生长的影响,本研究采用盆栽试验,设置不同处理,研究不同施肥水平不同叶面肥的使用对菜用甘薯生长状况、叶片叶绿素相对含量、食味品质、分枝数和产量的影响。结果表明,叶面肥菜籽饼肥对菜用甘薯产量和分枝数提升效果最好,氨基酸肥2和花多多次之。菜籽饼肥和氨基酸肥1对提升品质效果最好,但氨基酸肥1对产量提升效果一般。减氮施肥结合喷叶面菜籽饼肥后产量和分枝数均与常规施肥水平相当。

In order to explore the effects of different foliar fertilizers and nitrogen reduction fertilization on the growth of vegetable sweet potato,the effects of different fertilization levels and different foliar fertilizer applications on the growth status,relative chlorophyll content of leaves,eating quality,branch number and yield of vegetable sweet potato were studied by pot experiment and different treatments.The results showed that foliar fertilizer rapeseed cake fertilizer had the best effect on the yield and branch number of vegetable sweet potato,and amino acid fertilizer 2 and Huaduoduo were second.Rapeseed cake fertilizer and amino acid fertilizer 1 had the best effect on improving quality,but the effect of amino acid fertilizer 1 on yield improvement was not significant.The yield and branch number of nitrogen reduction fertilization combined with foliar rapeseed cake fertilizer were comparable with those of conventional fertilization.