Effect of Wood Vinegar Urea Humic Acid Foliar Fertilizer on the Growth of Maize Seedlings
Using wood vinegar from poplar and fruit trees as raw materials,and resin AD300,AD-8,AD-101,zeolite,and diatomaceous earth as fillers,the chromatography separation method was adopted to refine wood vinegar,and the low-temperature complexation technology was used to prepare wood vinegar humic acid urea foliar fertilizer(WVUFA).The effect of WVUFA on the growth of maize seedlings was explored through pot experiments.The research results showed that resin AD300,AD-8,and AD-101 had good phenol removal effects on wood vinegar.And resin AD300 had the highest phenol removal rate of 83.0％.Zeolite and diatomaceous earth reduced the content of acidic substances in wood vinegar,and the phenol removal effect was not significant.The dephenolized wood vinegar solution treated with resin AD300 of different volume concentrations and untreated phenolic wood vinegar solution were sprayed on maize seedlings.The dephenolized wood vinegar could alleviate the inhibitory effect on maize seedling growth to a certain extent and increase the chlorophyll content of maize seedlings,which could promote their growth.The height,relative chlorophyll content,peroxidase activity,soluble protein,and soluble sugar content of maize seedlings sprayed with WVUFA increased by an average of 23.3％,31.2％,42.3％,103.9％,and 5.9％compared to the group sprayed with tap water.The malondialdehyde content decreased by an average of 9.1％,and the nitrate nitrogen content of crops increased by an average of 44.2％,which comprehensively improved the stress resistance and photosynthesis of maize seedlings.
万方数据
维普
