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单独施用锌肥和钾肥对提高甜菜生长中后期块根干物质积累的作用差异不明显，其效果低于这两种肥料共同施用。单独施锌有利于提高群体的叶面积指数，并具有延缓叶片衰老的功效，对提高块根含糖作用也较明显。单独施钾时，可以使生长中心转移提前。当两种肥料一同施用时，增加钾肥用量即可提高块根干物质，又可提高块根含糖量，而增加锌的用量效果不明显。
The effects of zinc fertilizer and potassium fertilizer alone on improving dry matter accumulation of tuberous roots in the middle and late stages of sugar beet growth were insignificant and their effects were lower than those of the two fertilizers. Applying zinc alone is beneficial to increase leaf area index of the population and has the effect of delaying the leaf senescence and also has obvious effects on improving the sugar content of the root tuber. Potassium alone can shift the growth center ahead of schedule. When the two kinds of fertilizers are applied together, increasing the amount of K fertilizer can increase the dry matter of root tuber and increase the sugar content of root tuber, while the effect of increasing the dosage of zinc is not obvious.