Effects of available potassium in soil and potassium fertilizer application on the growth of watermelon
YOU Chun
SUN Xingxiang
Abstract：In order to study the effect of potassium fertilizer application on the quality and yield of watermelon in greenhouse under different available potassium gradient in soil, the watermelon variety‘Zaojia’was adopted as material to study the plant growth, fruit quality and yield at 8 experiment points for 2 years. At each point, 4-5 treatments were set up. The results showed that the growth, sugar content and yield was promoted under the application of potassium fertilize. When available potassium in soil was lower than 200 mg·kg-1, the fruit weight and yield were increased significantly by using K2O of 10 kg per 667 m2. When available potassium in soil was higher than 200 mg · kg-1, the fruit quality was increased significantly by using K2O of 5-6.7 kg per 667 m2 but the yield was not improved.
Keywords：WatermelonGreenhouseAvailable potassium in soilPotassium fertilizer
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 26-30 )