中文摘要：

采用田间小区试验，研究不同包膜肥用量对早熟油菜‘湘杂油1613’产量及养分利用的影响。结果表明：单位面积包膜肥和普通肥施用量相等时，包膜肥处理的籽粒产量均高于普通肥处理，处理B4（施包膜肥1500kg／hm2）的籽粒产量最高，达2066．97kg／hm2，处理B3（施包膜肥2250kg/hm2）次之，籽粒产量为1929．97kg／hm2；普通肥处理A3（施普通肥2250kg／hm2）与A4（施普通肥1500kg／hm2）的产量差异较小，分别为1844．50、1839．40kg／hm2，均低于等量包膜肥处理，且处理B4的利润最高，达7126．4元／hm2，处理B4比A4增产12．37％，单位产量的包膜肥用量减少11．01％。包膜肥处理油菜生育期植株的氮、磷、钾素累积量和肥料利用率基本高于等量普通肥处理。综合考虑产量、利润等因素，在本试验范围内以施包膜肥1500kg／hm2处理的效果较好。

英文摘要：

A field experiment was conducted to study the effects of different dosage of coated fertilizer on the yield and nutrients utilization of Xiangzayou ＇1613＇. The results showed that coated fertilizer （CF） could improve yield significantly compared with that of the same amount of ordinary fertilizer （OF）, the yield of B4 （1 500 kg/hm2 CF usage） reached 2 066.9 kg/hm2, was the highest, followed by B3 （2 250 kg/hm2 CF usage）, which was 1 929.9 kg/hm2; There was little difference between A3 （2 250 kg/hm2 OF dosage） and A4 （1 500 kg/hm2 OF dosage） in the yield, which was 1 844.50 and 1 839.40 kg/hm2 respectively, lower than the same amount of CF. The profit of B4 was the greatest, which reached 7 126.4 Yuan/hm2. Compare with An, the yield of B4 increased 12.37% and the fertilizer usage reduced 11.01%. Moreover, treatment of CF was higher in N, P, K accumulation compared to treatment OF. In general, by taken comprehensive consideration of outputs, profits and other factors, the best dosage for CF was 1 500 kg/hm2.