大量元素水溶肥料对生菜产量、品质及抗逆能力的影响

摘要

在露地生产条件下，研究了自制大量元素水溶肥料对生菜产量、品质和抗逆能力的影响。试验结果表明，与市售大量元素水溶肥料（WSF －Ⅱ）处理相比，自制大量元素水溶肥料（WSF －Ⅰ）处理能够显著提高生菜产量和品质，产量提高5．17％，VC 含量提高8．0％、可溶性糖含量提高12．2％，硝酸盐含量降低3．8％。试验结果还表明，WSF －Ⅰ能够显著提高生菜的多酚氧化酶活性并降低其丙二醛含量，从而提高生菜的抗逆能力。%An open field experiment was conducted to study the effects of self -made macroelement wa-ter soluble fertilizer (WSF -I)on yield,quality and disease resistant ability of lettuce.The results showed that compared with the saled macroelement water soluble fertilizer (WSF -Ⅱ),WSF -I could significantly increase the yield and quality of lettuce,which increased the yield by 5.17%,the content of vitamin C by 8.0% and the reductive sugar by 12.2%,and decreased the content of nitrate by 3.8%.WSF -I also signif-icantly increased the activity of polyphenol oxidase but decreased the content of malondialdehyde,so it could enhance the anti -adversity ability of lettuce.