采用生长分析方法，对生长周期为3 a的兰州食用百合进行了生长发育、干物质及氮磷钾素养分吸收累积分配规律研究。结果表明，兰州食用百合生长第1年对氮磷钾素养分的吸收累积与干物质累积不同步，生长第2年、第3年对氮磷钾素养分的吸收累积与干物质累积同步进行。不同生长年限下兰州食用百合的干物质和氮磷钾素养分吸收累积均表现为:二年生最高，三年生次之，一年生最低。一年生、二年生、三年生兰州食用百合的氮磷钾素吸收累积均表现为:K2O ＞ N ＞ P2O5。不同生长年限、不同发育阶段对氮磷钾素吸收累积的比值不同，生长第1年氮磷钾素吸收累积比值为1∶0.4∶1.4，生长第2年为1∶0.5∶1.7，生长第3年为1∶0.5∶1.5。

Using the growth analysis method，the growth，accumulation and distribution of nitrogen，phosphorus and potassium nutrients in Lanzhou edible lily with the growth period of 3 years were studied. The results showed that the absorption and accumulation of NPK nutrients in the first year of growth of edible lily in Lanzhou was not synchronized. In the second and third years， the absorption and accumulation of NPK nutrients was synchronized with the accumulation of dry matter. The accumulation of dry matter and nitrogen， phosphorus and potassium nutrients of Lanzhou edible lily under different growth years were expressed as follows: the highest in biennial lily， the second in triennial lily， the lowest in annual lily. The absorption and accumulation of NPK of Lanzhou edible lily of biennial， triennial， annual was K2O > N > P2O5. There are differences in the ratio of NPK absorption and accumulation in different growth years and different developmental stages of Lanzhou edible lily. In the first year of growth， the absorption ratio of NPK was 1∶0.4∶1.4， the second year growth was 1∶0.5∶1.7， and the third year of growth was 1∶0.5∶1.5.

S644.1

甘肃省科技重大专项(18ZD2NA010)；甘肃省农业科学院科技支撑项目(2017GAAS36)。