Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (33): 46-49.doi: 10.11924/j.issn.1000-6850.casb16100087

Special Issue: 园艺

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Effect of Different Application Amounts of Potassium Fulvate on Yield and Quality of Tomato and Soil Physical and Chemical Properties

  

  • Received:2016-10-21 Revised:2017-11-13 Accepted:2016-12-13 Online:2017-11-27 Published:2017-11-27

Abstract: To study the optimum dosage of potassium fulvate (PF) on greenhouse tomato, the effects of different amount of PF on yield and quality of greenhouse tomato and soil physical and chemical properties were investigated by a field plot experiment. The results showed that the bottom application of PF increased tomato yield, plant dry matter quantity and root dry matter quantity by 14.0%, 14.4 and 50.6%, repectively; Vc and soluble sugar content of tomato increased by 15.5% and 10.0%; bulk density decreased by 3.6% and CEC increased by 5.0%. All the indexes increased with the increase of PF application amount, and reached the maximum value when the PF application rate was 4500 kg/hm2. In consideration of the cost of fertilizer and all indexes, the optimum dosage of PF fertilizer was 4500 kg/hm2.