【摘要】 [目的]明确钾肥的适宜用量,提高番茄的产量和品质。[方法]以不施钾肥为对照,研究了施钾（K₂O）100、200、300、400 kg/hm²等不同处理对番茄产量、果实维生素C和可溶性糖含量的影响。[结论]番茄施用钾肥具有明显的增产增收效果,施钾处理比不施钾处理增产11.8%¹8.9%,增收16 760²5 908元/hm²。增施钾肥可明显提高番茄果实中维生素C和可溶性糖含量,改善番茄的品质,保护地番茄钾（K₂O）经济施用量为377 kg/hm²,产量为11 4041 kg/hm²。更多还原

【Abstract】 [Objective] The aim was to determine the appropriate amount of potassium fertilizer, which would improve the yield and quality of tomato. [Method] With no potassium fertilizer as control,effects of different potassium（K₂O） treatments（100, 200, 300, 400 kg/hm²） on tomato yield, fruit vitamin C and soluble sugar content were studied. [Result] The results showed that application of potassium fertilizer increased tomato yield and benefit. The yield of tomato increased 11.8% to 18.9%than that of no potassium treatment, and the benefit increased 16 760 ²5 908 Yuan/hm². The application of potassium fertilizer improved the quality of tomato, which increased the content of vitamin C and soluble sugar. The economic application amount of tomato potassium（K₂O） was 377kg/hm², and the yield was 11 4 041 kg/hm².更多还原