Optimisation of the amount of nitrogen enhances quality and yield of pepper

The goals of this study were to explore the characteristics nitrogen (N) absorption and utilisation chilli peppers (Capsicum annuum L.), improve rate nitrogen, provide a theoretical basis for scientific fertilisation. In experiment, pepper cv. Huoyanjiaowang was used as material, potted sand cultures field randomised block experiments conducted effects fertilisation different forms on photosynthetic characteristics, chlorophyll, nitrate alkaline capsaicin, dihydrocapsaicin yield. pot application rates 0, 10, 100, 320 600 mg/L, level 100 mg/L significantly inhibited growth pepper. With increase in capacity gradually decreased, 10 optimal level. Under 0 mg N/L levels content chlorophyll group lower than those other treatment groups, indicating that plot lacked nitrogen. contents hydrolysis soil increased. yield 153.18 kg/ha 230 treatments relatively high. Therefore, among five levels, with 153.18–230 kg N/ha most effective at stimulating