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施 用钾 肥能显 著提高 冬季 大棚番 茄的 果实产 量，增 产幅度 达 １１％ ～ １７％ ，但 施钾 量超过一定 范围，增 产幅度下 降。施用 钾肥同 时改善了 果实的品 质，番茄 果实中 Ｖｃ 的含量与 产量的趋势一 致，但果实 中全糖 的最高含 量，在产 量与 Ｖｃ 含量的 峰值之 前出现。收获 早期的高 产量、高价格对 番茄施钾 的经济 收益高具 有一定 的贡献。
Potassium fertilizer application can significantly increase the winter tomato yield in greenhouse, the rate of increase of 11% to 17%, but the amount of potassium exceeds a certain range, yield decline. The application of potash also improved the quality of fruits. The content of Vc in tomato fruits was consistent with the trend of yield. However, the highest content of total sugars in fruits appeared before the peak of yield and Vc content. The early harvest of high-yield, high prices of potassium on the economic benefits of potassium has a high contribution.