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通过田间小区试验研究了保水专用肥对甘薯产量和品质的影响。结果表明:保水专用肥可促进甘薯营养器官的生长,增加蔓长和主茎分枝数;与施肥对照相比(N6P5K10),三种保水专用肥处理的鲜薯和薯干产量均表现增产,以保水专用肥1的增产幅度最大,分别比施肥对照增产23.15%和29.33%;保水专用肥可促进前中期可溶性糖的积累和后期向淀粉的转变,收获期三种保水专用肥处理的淀粉含量均高于施肥对照;三种保水专用肥处理的直链淀粉含量均高于空白对照和施肥对照,以保水专用肥1、3的效果佳,其直链淀粉含量分别比对照提高14.57%和15.14%,比施肥对照提高9.07%和9.61%。
The effects of special water-retaining fertilizer on the yield and quality of sweet potato were studied through field plot experiment. The results showed that the special water-saving fertilizer could promote the growth of sweet potato vegetative organs and increase the number of stems and main stems. Compared with the fertilization control (N6P5K10) The yield of specialized water-saving fertilizer 1 was the highest, which increased by 23.15% and 29.33% respectively compared with that of fertilization. The water-saving special fertilizer could promote the accumulation of soluble sugar in the middle and later stages and the starch conversion in later period. Were higher than the fertilization control; amylose content of the three kinds of water-saving special fertilizer treatment were higher than the blank control and fertilization control, to water conservation special fertilizer 1,3 good effect, the amylose content increased 14.57% and 15.14 %, 9.07% and 9.61% higher than fertilization control.