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为探讨黑芝麻新品种‘赣芝8号’在红壤旱地上的合理氮肥用量,笔者研究了6种氮肥用量(0、60、90、120、150、180 kg/hm2N)下‘赣芝8号’的产量、植株性状、氮肥农学利用率。结果表明,不同施氮量对芝麻产量影响显著。在所有处理中均以N120的产量、单株蒴数、每蒴粒数最高,其产量高达1172.22 kg/hm2。而N0处理表现最差,其产量仅为672.78 kg/hm2。收获指数与产量的表现不一,与N0相比,N60、N90、N120、N150、N180的收获指数分别增加了15.99%、14.91%、38.82%、25.68%、17.07%,其中以N90处理的收获指数最高。在氮农学效率方面,表现出N120处理较高,为4.16 kg/kg。通过方程拟合发现,‘赣芝8号’获得高产的合理施氮范围在80~120 kg/hm2之间。
In order to explore the reasonable amount of nitrogen fertilizers in Ganoderma 8, a new black sesame variety, on dry land of red soil, the author studied the effects of 6 nitrogenous fertilizers (0, 60, 90, 120, 150 and 180 kg / hm2N) ’Yield, plant traits, nitrogen fertilizer agronomic efficiency. The results showed that different amount of nitrogen had a significant impact on the yield of sesame. In all the treatments, the yield of N120, the number of bolls per plant and the number of bolls per plant were the highest, reaching 1172.22 kg / hm2. However, N0 treatment showed the worst performance with a yield of only 672.78 kg / hm2. Compared with N0, the harvest index of N60, N90, N120, N150, N180 increased by 15.99%, 14.91%, 38.82%, 25.68% and 17.07% The highest index. In terms of nitrogen agronomic efficiency, N120 showed a higher treatment of 4.16 kg / kg. Through the fitting of equation, it was found that reasonable nitrogen application range of ’Ganzhi 8’ with high yield was between 80 ~ 120 kg / hm2.