Optimisation of the amount of nitrogen enhances quality and yield of pepper
Optimisation of the amount of nitrogen enhances quality and yield of pepper
复制标题
优化施氮量提高辣椒品质和产量
DOI：
10.17221/123/2021-pse
复制
发表时间：
2021
期刊：
影响因子：
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通讯作者：
Dongli Pei
中科院分区：
文献类型：
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作者：
Shuang Han;Xiaoqin Zhu;Dongmei Liu;Libo Wang;Dongli Pei
本研究旨在探讨辣椒（Capsicum annuum L.）氮素吸收利用特性，提高氮素利用率，为科学施肥提供理论依据。在这个实验中，辣椒CV。以火炎骄王为材料，通过盆栽沙培和大田随机区组试验，研究了不同形态氮肥对其光合特性、叶绿素、硝态氮、碱氮、辣椒素、二氢辣椒素及产量的影响。盆栽试验中施氮量为0、10、100、320、600mg/L，施氮量100mg/L对辣椒生长有显着抑制作用。随着施氮量的增加，光合能力逐渐下降，10 mg/L为最适施氮水平。田间试验在0和10 mg N/L氮水平下，该组叶绿素含量显着低于其他处理组，表明该小区缺氮。随着施氮水平的增加，土壤中硝态氮和碱解氮的含量增加。 153.18公斤/公顷和230公斤/公顷施氮处理产量较高。因此，5个施氮水平中，153.18~230 kg N/ha处理对刺激辣椒生长和产量最为有效。
The goals of this study were to explore the characteristics of nitrogen (N) absorption and utilisation of chilli peppers (Capsicum annuum L.), improve the utilisation rate of nitrogen, and provide a theoretical basis for scientific fertilisation. In this experiment, pepper cv. Huoyanjiaowang was used as the material, and potted sand cultures and field randomised block experiments were conducted to study the effects of fertilisation of different forms of nitrogen on the photosynthetic characteristics, chlorophyll, nitrate nitrogen, alkaline nitrogen, capsaicin, dihydrocapsaicin and yield. In the pot experiment, the nitrogen application rates were 0, 10, 100, 320 and 600 mg/L, a level of nitrogen of 100 mg/L significantly inhibited the growth of pepper. With the increase in the application of nitrogen, the photosynthetic capacity gradually decreased, and 10 mg/L was the optimal nitrogen level. Under 0 and 10 mg N/L nitrogen levels in the field experiment, the content of chlorophyll of this group was significantly lower than those of other treatment groups, indicating that the plot lacked nitrogen. With the increase in the level of application of nitrogen, the contents of nitrate nitrogen and alkaline hydrolysis nitrogen in the soil increased. The yield of 153.18 kg/ha and 230 kg/ha nitrogen treatments was relatively high. Therefore, among the five nitrogen treatment levels, treatment with 153.18–230 kg N/ha was the most effective at stimulating the growth and yield of pepper..