中国农业科技导报2025，Vol.27Issue(3)：227-238,12.DOI:10.13304/j.nykjdb.2023.0553
减氮配施聚天冬氨酸对烤烟氮素利用及产质量的影响
Effects of Nitrogen Reduction Combined with Polyaspartic Acid on Nitrogen Utilization,Yield and Quality of Flue-cured Tobacco
摘要
Abstract
In order to determine the effect of polyaspartic acid(PASP)on the efficiency and quality of flue-cured tobacco production under the condition of reduced nitrogen application,a split-plot experiment was conducted with'Honghua Dajinyuan'as the test material.4 nitrogen application treatments were set up,including the conventional nitrogen application(N1)and nitrogen reduction rates of 10%(N2),15%(N3)and 20%(N4)on the basis of conventional nitrogen application.At the same time,0.0%(P1),2.5%(P2),5.0%(P3)and 7.5%(P4)PASP were applied,respectively.The effects of PASP on nitrogen utilization,yield and quality of flue-cured tobacco under nitrogen reduction were studied.The results showed that,with the decrease of nitrogen application rate,the growth and development of tobacco plants became weaker,the SPAD value,nitrogen absorption and accumulation,yield and nitrogen apparent utilization decreased,the nitrogen physiological utilization increased,the sugar content of flue-cured tobacco leaves increased,the nicotine and total nitrogen content decreased,and the smoking power became smaller.Under same nitrogen conditions,with the increase of PASP ratio,the agronomic indexes of tobacco plants were significantly improved.Compared with no PASP,SPAD value and yield of P4 treatment increased by 10.08%～18.44%and 7.54%～9.44%,respectively,and the apparent utilization rate and agronomic utilization rate of nitrogen fertilizer were increased by 56.21%～72.59%and 21.61%～28.38%,respectively.The smoking quality of tobacco leaves of PASP treatments under nitrogen reduction condition was better.In conclusion,the yield and output value of flue-cured tobacco leaves treated with 5.0%PASP under the condition of 15%nitrogen reduction were similar to the conventional nitrogen application without adding PASP treatment,and the nitrogen utilization rate increased,the quality of flue-cured tobacco was better.关键词
烤烟/减氮/聚天冬氨酸(PASP)/氮肥利用率/产质量Key words
flue-cured tobacco/reducing nitrogen application/polyaspartic acid(PASP)/nitrogen use efficiency/yield and quality分类
农业科技引用本文复制引用
段俊雅,赵园园,王婷婷,韦建玉,王政,王德勋,李娟,史宏志..减氮配施聚天冬氨酸对烤烟氮素利用及产质量的影响[J].中国农业科技导报,2025,27(3):227-238,12.基金项目
广西中烟工业有限责任公司项目(2021450000340021) （2021450000340021）
中国烟草总公司云南省公司科技项目(2022530000241015). （2022530000241015）
