【摘要】 试验以22年、20年、18年、8年和5年生啤酒花为研究对象,测定了各植龄啤酒花农田土壤盐离子含量,分析了不同植龄土壤盐离子含量的变化特征及与啤酒花品质的关系。结果表明:随啤酒花植龄布为0～20cm>20～40cm>40～60cm。在0～20cm土层,植龄为22年、20年、18年、8年、5年的土壤可溶性盐含量分别为0.401%、0.298%、0.256%、0.321%、0.185%,其中前4个年份分别是5年植龄的2.17的延长,土壤可溶性盐分总量及各盐离子含量均显著增加,增加幅度随土层的加深而减小(总体上仍呈上升趋势);各离子增加幅度顺序为CL->Ca2+>Mg2+>Na+>K+>SO42-。土壤盐离子含量在不同剖面的分、1.61、1.38和1.72倍,均与5年植龄的达到显著差异。土壤中盐离子在表面的累积以及各离子增加幅度的不同也可能是啤酒花α-酸含量下降的原因之一。更多还原

【Abstract】 Through analyzing 22,20,18,8,5 perennial hops respectively in the test,salty ions in the farmland soil different aged hops were determined,at the same time,changing property of salty ions in soil for different aged hops and their relation with quality in hops were analyzed.The results showed:Soluble salinity content in soil sharply increased with the hops age rising,while the increased extent decreased with the soil layer deepening into(in general,the change trend was still rising).The change order of all ions was CL->Ca2+>Mg2+>Na+>K+>SO42-.By vertical-section analysis,as far as the salty ions content in soil were concerned,0-20cm layer>20-40cm layer>40-60cm layer.Soil layer in the 0-20cm,soluble salinity in soil was 0.401%,0.298%,0.256%,0.321%,0.185% respectively at the 22-year,20-year,18-year,8-year and 5-year.The soluble salinity at the first four age were 2.17,1.61,1.38 and 1.72 times respectively as that at the 5-year,and the difference was remarkable.The superficial accumulation of the salty ions was an important cause to decrease the α-acid in hops.更多还原