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分别将木质素、腐植酸与磷酸盐混合后,制备出新型的活化磷肥,研究其对玉米生长的影响。结果表明,新型活化磷肥可促进玉米的生长,施用木质素型活化磷肥的玉米在叶宽、茎粗、株高等性状上均优于其他处理组,玉米生物量达8.2 g/盆,吸磷量达1.46 mg/盆,磷素利用率最高,达0.18%,土壤磷素固定率明显较低,低于60%,磷素持续活化效果明显,能使土壤保持较高的有效磷含量。
Lignin, humic acid and phosphate were mixed, respectively, to prepare a new type of activated phosphate fertilizer, to study the impact of corn growth. The results showed that the new activated phosphate fertilizer could promote the growth of maize. The corn with the lignin - activated phosphate fertilizer was superior to the other treatments in leaf width, stem diameter and plant height. The biomass of corn was 8.2 g / Up to 1.46 mg / pot, the highest phosphorus utilization rate was 0.18%, the phosphorus fixation rate of soil was obviously lower, lower than 60%, the effect of sustained activation of phosphorus was obvious, and the soil could maintain higher available phosphorus content.