Effects of botanical foliar fertilizers on watermelon yield,quality and nutrient absorption

Field experiment was conducted to investigate the effect of botanical foliar fertilizers on yield,quality and nutrient absorption of watermelon.Foliar fertilizer Ⅱ(FFⅡ)made by burdock extracts and oligoehitosan.The results suggested that: watermelon yield of FFⅠ and Tianda 2116(TD)treatment were increased by 18.44% and 11.27%respectively than that of traditional fertilization.Vc content of FFⅠ,FFⅡ and TD treatment were increased by 50.19%,19.96%and 50.92%respectively.Suger content of FFⅠ,FFⅡ and TD treatment were increased by 11.89%,3.76%and 11.65% respectively.Nitrate content of FFⅠ,FFⅡ and TD treatment were decreased by 18.91%,13.59% and 13.99% respectively.Potassium content of FFⅠ treatment was increased by 8.49%.Watermelon yield of FFⅠ treatment was higher than that of TD and FFⅡ treatment,watermelon quality of FFⅠ treatment was as good as that of TD treatment,they were better than that of FFⅡ.In conclusion,FFⅠ could not only increase watermelon yield and quality,but also promote potassium transporting from stem to peel in watermelon.These results suggested that FFⅠ was suitable for watermelon.