The present study was conducted to investigate the effects of phosphorus fertilizer treatments (0, 30, 60, 90 and 120 kg ha⁻¹ P₂O₅) on crude oil, diosgenin, and trigonelline contents and on fatty acid composition of fenugreek plants. Experiments were conducted in a randomized block design with four replications. Results revealed under different phosphorus fertilizer doses that crude oil content varied between 4.75 and 5.54%, diosgenin content varied between 0.43 and 0.52% and trigonelline content varied between 0.74 and 0.97%. The highest diosgenin and trigonelline contents were obtained under the 3 kg da⁻¹ P₂O₅ treatment and the highest crude oil content was observed under the 6 kg da⁻¹ P₂O₅ treatment. With regard to fatty acid composition, C_18:2, C_18:3, C_16:0, C_18:0, C_18:1 and C_20:0 were identified as the major components and C_14:0, C_16:1, C_17:0, C_17:1, C_20:1 and C_22:0 were identified as the minor ones. Linoleic acid (C_18:2) content varied between 42.78 and 43.44% and linolenic acid (C_18:3) content varied between 26.77 and 29.21%. Except for linolenic acid (C_18:3), the highest contents of all the other major components were observed with the 90 kg ha⁻¹ P₂O₅ treatment.

本研究旨在研究磷肥处理（0、30、60、90和120 kg ha ^-1 P ₂ O ₅）对原油，薯os皂苷元和松柏油碱含量以及胡芦巴植物脂肪酸组成的影响。实验以四次重复的随机区组设计进行。结果表明，在不同剂量的磷肥条件下，原油含量在4.75％至5.54％之间变化，薯in皂苷元含量在0.43％至0.52％之间变化，松柏油碱含量在0.74％至0.97％之间变化。在3 kg da ^-1 P ₂ O ₅下获得了最高的薯os皂素和藜芦碱含量处理后，在6 kg da ^-1 P ₂ O ₅处理下观察到最高的原油含量。关于脂肪酸组成，C _18：2，C _18：3，C _16：0，C _18：0，C _181：1和C _20：0被确定为主要成分，C _14：0，C _{16 ：1、1}，C _17：0，C _17：1，C _20：1和C _22：0被确定为次要的。亚油酸（C _18：2）含量在42.78％至43.44％之间，亚麻酸（C _18：3）含量在26.77和29.21％之间变化。除亚麻酸（C _18：3）外，其他所有主要成分的含量最高均为90 kg ha ^-1 P ₂ O ₅处理。