Abstract:

In this paper, field experiment was conducted to study the effects of nitrogen fertilizer, nitrogen and phosphorus fertilizer, and slow/controlled release fertilizers on the yield, dry matter accumulation and chlorophyll content of Guozhi2 and Zhengzhi95-8, the results showed that fertilization can significantly increase the yield of sesame, the increase rate is 9.90~41.97% with Guozhi2 and Zhengzhi95-8 is 16.00%~42.03%. The yield of CRF is the highest, and there are 1695.20kg/hm2 and 1394.40 kg/hm2 respectively. Fertilization increased 1000-grains weight of sesame, the increase rate were 13.10%~31.80% and 25.47%~29.59%. Nitrogen fertilizer increased yield by 12.95% averagely, phosphorus fertilizer is 5.86%, and slow/controlled release fertilizers is 18.90%, compared to conventional chemical fertilizer with equivalence nutrient content. Fertilization could also improve sesame plant height, leaf number, chlorophyll content, capsules per plant, seeds per capsules and dry matter accumulation, and promoted the growth and development of sesame.