沼液、化肥配施对西瓜产量和品质的影响

Effects of biogas slurry and chemical fertilizer on yield and quality of watermelon grown in substrates

试验研究了沼液、化肥配施对西瓜生长、产量和品质的影响。结果表明,沼液、化肥配施降低了基质的容重,pH、EC有所降低,促进了植株的生长发育,提高了果实的产量和品质。与化肥处理相比,70%沼液配施30%化肥处理的产量、Vc、可溶性糖、可溶性固形物、蛋白质分别增加了50.8%、9.9%、6.6%、4.4%、12.1%;硝酸盐含量降低了20%。

This experiment using different dosage of biogas slurry and fertilizer to study their effects on the growth,yield and quality of watermelon under soilless cultivation were carried out in greenhouse.The results showed that the mixture of biogas slurry and chemical fertilizer reduced bulk density,pH,EC in growing media,and promoted plant growth,and improved yield and quality of watermelon.As compared with the treatment of pure chemical fertilizer,mixture of 70% biogas slurry with 30% chemical fertilizer improved content of yield,Vc,soluble sugar,soluble solids,protein of fruit by 50.8%,9.9%,6.6%,4.4%,12.1% respectively;the nitrate content of fruit decreased by 20%.