光合菌剂对菜心产量和品质的效应评价

通过在菜心上喷施不同浓度光合菌剂的试验研究,筛选适合高产优质蔬菜生长的最佳施用浓度。结果表明:光合菌剂50~150倍液有极显著的增产效果,以100倍液的增产效果最好,商品产量增产率达10.2%,生物产量增产率达19.4%;光合菌剂具有显著提高菜心地上部氮、磷、钾吸收的效果,其中以100倍液的效果最好,吸收量增长率分别为N 27.1%、P2O530.2%、K2O33.6%;喷施光合细菌100倍液具有提高菜心品质的效果,维生素C和可溶糖含量增加15.5%和17.7%,菜心硝酸盐含量降低7.85%。

Effect of photosynthetic bacteria agent on yield and quality of flowering Chinese cabbage

The research aimed to study the effects of photosynthetic bacteria agent(PBA) on flowering Chinese cabbage.Different concentrations of PBA were sprayed on the growth of flowering Chinese cabbage leaf 3~4,leaf 6~8 and bolting.The results showed that the application of PBA could increase yield,nutrient absorption and quality of flowering Chinese cabbage.Sample treated with 100 times dilution had the best yield(19.4% increase),and the absorption rate of N,P2O5 and K2O were enhanced by 27.1%,30.2%,33.6% respectively compared with control.Sample of 100 times dilution has the highest Vitamin C and soluble sugar content,with 15.5% and 17.7% increase compared with control.It also has the lowest nitrate content,with 7.85% decrease compared with control.