腐植酸肥料对生姜土壤磷酸酶活性及磷素吸收的影响

Effects of Humic Acid Fertilizer on Soil Phosphatase Activity and Phosphorus Accumulation of Ginger

通过小区试验,研究了腐植酸肥料对生姜不同生育时期土壤磷酸酶活性、磷素吸收以及产量的影响。结果表明:与对照比较,施用腐植酸提高了土壤磷酸酶活性、土壤速效磷含量和植株对磷的吸收量;显著提高了根茎产量,增产22.15%。与施用无机养分处理比较,施用腐植酸肥料提高了土壤磷酸酶活性;尤其在生姜生长后期,土壤速效磷含量和植株的磷素吸收量都明显提高;显著提高了生姜产量,增产9.17%。

Using a field experiment, the effects of humic acid（HA） fertilizer on soil phosphatase activity, phosphorus accumulation and rhizome yield of ginger were studied in this paper. The results showed that in comparison with the control, the application of humic acid increased the phosphatase activities and available phosphorus content in the soil, increased the phosphorus accumulation in ginger plants. The rhizome yield increased by 22.15%. In comparison with the application of chemical fertilizers, the application of humic acid slow-released fertilizer increased the phosphatase activities. The available phosphorus content in soil and the phosphorus accumulation in ginger plants were decreased during the early ginger growing season and increased during the late ginger growing season. The rhizome yield in- creased by 9.17%.