保护地番茄钾肥适宜用量研究  

Study on Suitable Amount of Potassium Fertilizer of Tomato under High Tunnel Condition

作　　者：包红静[1] 邢月华[1] 蔡广兴[1] 马跃[2] 于洋 

机构地区：[1]辽宁省农业科学院植物营养与环境资源研究所,辽宁沈阳110161 [2]辽宁省农业科学院蔬菜研究所,辽宁沈阳110161 [3]吉林省烟草公司长春市公司,吉林长春130000

出　　处：《园艺与种苗》2017年第3期7-8,13,共3页Horticulture & Seed

基　　金：国际植物营养研究所(IPNI)项目

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(K_2O)100、200、300、400 kg/hm^2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16 760~25 908元/hm^2。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(K_2O)经济施用量为377 kg/hm^2,产量为11 4041 kg/hm^2。[Objective] The aim was to determine the appropriate amount of potassium fertilizer, which would improve the yieht 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. [Resultl 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 inereased the content of vitamin C and soluble sugar. The economic application mnount of tomato potassium （K2O） was 377 kg/hm2, and the yieht was 114 041 kg/hm2.

关 键 词：番茄 钾肥 适宜用量 

分 类 号：S641.2[农业科学—蔬菜学]