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Title:: Effects of Different Potash Fertilizers on Yield,Quality and? Profit of Tomato in Sunlight Greenhouse

Author(s):: PENG Dianliang; TANG Yuhai; ZHANG Jingmin; LIU Xiaoming; WANG Xingcui; NI Xiumei; (Facility Horticulture Laboratory of Universities in Shandong,Weifang University of Science and Technology/Jia Sixie Agricultural College,Shouguan,Shandong 262700)

Abstract:: The tomato variety ‘Hannuowei’ was used as test material.The chlorophyll content of leaves,fruit height and diameter,malformed berry ratio,fruit weight,yield,production value and profit were measured to test the effect of different potash fertilizers on yield,quality and profit of tomato.The results showed that spraying foliar fertilizer,potassium sulphate,potassium chloride and potassium dihydrogen phosphate all improved the chlorophyll content of leaves,fruit weight,the soluble solid content,vitamin C content as compared with control,while decreased the malformed berry ratio,and the effects of spraying potassium dihydrogen phosphate was better than another foliar fertilizer treatment.The 667 m2 yields of spraying potassium sulphate,potassium chloride and potassium dihydrogen phosphate were increased by 140.77 kg,295.06 kg and 362.81 kg,respectively,and also improved the profit.It indicated that spraying foliar fertilizer could improve the yields and quality of tomato,the effect of spraying potassium dihydrogen phosphate was the best.