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针对当前蔬菜生产中肥料投入量过大的问题,通过田间试验研究不同氮肥施用量对设施辣椒产量、品质和经济效益的影响。结果表明,与不施用氮肥处理相比,施用氮肥处理平均增产率为54.9%。在各施氮处理中,N 450 kg/hm2处理辣椒果实产量和施肥效益最高,分别为22 560 kg/hm2和24.41万元/hm2;增加或减少30%氮肥施用量(N 585和315 kg/hm2),辣椒产量和经济效益均出现下降,但未达显著水平。随着氮肥用量的增加,辣椒VC含量逐渐降低;各处理还原糖含量间无显著差别。综合考虑辣椒产量、品质、经济效益和环境因素,315 kg/hm2是最佳氮肥用量。
Aiming at the problem of excessive input of fertilizers in vegetable production, the effects of different nitrogen fertilizers on yield, quality and economic benefits of hot pepper were studied through field experiments. The results showed that compared with the non-application of nitrogen fertilizer, the average yield of nitrogen fertilizer application was 54.9%. Among the N treatments, N 450 kg / hm2 had the highest fruit yield and fertilizer efficiency of 22 560 kg / hm2 and 244100 yuan / hm2, respectively. The nitrogen application rate of 30% N585 and 315 kg / hm2), pepper production and economic benefits have declined, but did not reach significant levels. With the increase of the amount of nitrogen fertilizer, VC content of pepper decreased gradually; There was no significant difference between the content of reducing sugar in each treatment. Taking into account the yield, quality, economic benefits and environmental factors, 315 kg / hm2 is the best nitrogen fertilizer.