小球藻对小麦生长及土壤性质的影响

Effects of Chlorella on Wheat Growth and Soil Properties

为了研究小球藻作为生物肥料的潜能,以盆栽小麦为实验材料,探究施用不同浓度的小球藻对小麦生长及土壤质量的影响。结果表明:小麦根部冲施小球藻能提高小麦生长指标,其中株高增加4.01%~11.99%,地上部鲜重增加16.01%~29.42%,叶绿素a增加4.90%~80.72%,叶绿素b增加9.38%,总叶绿素增加11.99%~48.56%。同时,小球藻可以改善土壤质量,其中有机质增加5.26%~6.93%,碱解氮增加2.89%~10.14%,有效磷增加3.79%~13.11%,速效钾增加6.63%~13.08%,土壤pH也提升0.46%~1.62%。综上所述,施用小球藻不仅可以促进小麦的生长,增加小麦的生物量,还可以一定程度上改善土壤质量。

In order to study the potential of Chlorella as bio-fertilizer,potted wheat was used as the experimental material,and the effects of Chlorella on wheat growth and soil properties were analyzed under different concentrations.The results showed that irrigation with Chlorella at wheat root could improve the growth of wheat.The plant height was increased by 4.01%-11.99%,and the fresh weight of the aboveground part was increased by 16.01%-29.42%.In addition,the content of chlorophyll a was increased by 4.90%-80.72%,the content of chlorophyll b was increased by 9.38%,and the total content of chlorophyll was increased by 11.99%-48.56%.Meanwhile,soil qualities were improved under Chlorella treatment.The organic matter of soil was increased by 5.26%-6.93%,alkali-hydrolyzed nitrogen was increased by 2.89%-10.14%,available phosphorus was increased by 3.79%-13.11%,available potassium was increased by 6.63%-13.08%,and soil pH was increased by 0.46%-1.62%.In conclusion,the application of Chlorella can not only promote the growth and biomass increase of wheat,but also improve soil quality to a certain extent.