University of Tabriz Journal of Agricultural Science and Sustainable Production 2476-4310 35 1 2025 04 30 Effect of Ammonium Nitrate, Mycorrhiza and Nitroxin Biofertilizer on Grain and Essential Oil Yield of Cumin (Cuminum cyminum L.) under Kashan Province Effect of Ammonium Nitrate, Mycorrhiza and Nitroxin Biofertilizer on Grain and Essential Oil Yield of Cumin (Cuminum cyminum L.) under Kashan Province 65 82 19727 10.22034/saps.2024.58071.3098 FA Mansoore Foroughian Department of Agronomy and Plant Breeding, Naragh branch, Islamic Azad University, Naragh, Iran Mojtaba Jafarzadeh Kenarsary Department of Agronomy and Plant Breeding, Saveh branch, Islamic Azad University, Saveh, Iran Hamid Dehghanzadeh Department of Agricultural Sciences, Payame Noor University, I.R. of IRAN Hossein Zeinali Research Division of Natural Resources, Isfahan Agricultural and Natural Resources Research and Education Center (AREEO), Isfahan, Iran Journal Article 2023 08 21 <strong>Background and Objective:</strong> The use of alternative methods to chemical fertilizers is of great importance in the production of medicinal plants.The present study was performed to evaluate the effect of ammonium nitrate, mycorrhiza fungi and nitroxin biofertilizer on the yield, yield components and essential oil percentage of cumin. <br /><strong> </strong><br /><strong>Materials and Methods</strong>: This study was carried out as a split factorial experiment based on randomized complete block design with three replications. The experimental treatments included three chemical ammonium nitrate fertilizer levels (0, 40 and 80 kg. ha^-1) as a main plot, mycorrhiza fungi (application and non-application) and nitroxin biofertilizer (application 0.5 liter per 9 kg seed and non-application) were factorially placed in sub plots. Green cumin seeds (Kashan local variety) were obtained from the Isfahan Agricultural and Natural Resources Research Center.<br /><strong> </strong><br /><strong>Results</strong>: The results showed that manure treatments improved the vegetative traits and increased yield, yield components, essential percentage and essential yield. In most of the traits, the combined use of ammonium nitrate and biofertilizers led to a greater improvement of the traits compared to their separate use. The combined application of 80 kg. ha-¹ of ammonium nitrate and mycorrhiza and nitroxin biofertilizer had the highest grain yield, percentage and essential oil yield of 4.2%, 411.8 and 19.28 kg. ha^-1, respectively.<br /><strong> </strong><br /><strong>Conclusion: </strong>Considering that in the use of biofertilizers combined with the use of 40 kg.ha^-1 of ammonium nitrate with the use of 80 kg.ha^-1of ammonium nitrate, no significant difference was observed in the biological yield, grain yield , percentage and yield of essential oil, it is possible to use 40 kg.ha^-1of ammonium nitrate combined with the biofertilizers, while reducing the consumption of chemical fertilizer by 50%, the grain yield, percentage and yield of essential oil do not decrease significantly.<br />  <strong>Background and Objective:</strong> The use of alternative methods to chemical fertilizers is of great importance in the production of medicinal plants.The present study was performed to evaluate the effect of ammonium nitrate, mycorrhiza fungi and nitroxin biofertilizer on the yield, yield components and essential oil percentage of cumin. <br /><strong> </strong><br /><strong>Materials and Methods</strong>: This study was carried out as a split factorial experiment based on randomized complete block design with three replications. The experimental treatments included three chemical ammonium nitrate fertilizer levels (0, 40 and 80 kg. ha^-1) as a main plot, mycorrhiza fungi (application and non-application) and nitroxin biofertilizer (application 0.5 liter per 9 kg seed and non-application) were factorially placed in sub plots. Green cumin seeds (Kashan local variety) were obtained from the Isfahan Agricultural and Natural Resources Research Center.<br /><strong> </strong><br /><strong>Results</strong>: The results showed that manure treatments improved the vegetative traits and increased yield, yield components, essential percentage and essential yield. In most of the traits, the combined use of ammonium nitrate and biofertilizers led to a greater improvement of the traits compared to their separate use. The combined application of 80 kg. ha-¹ of ammonium nitrate and mycorrhiza and nitroxin biofertilizer had the highest grain yield, percentage and essential oil yield of 4.2%, 411.8 and 19.28 kg. ha^-1, respectively.<br /><strong> </strong><br /><strong>Conclusion: </strong>Considering that in the use of biofertilizers combined with the use of 40 kg.ha^-1 of ammonium nitrate with the use of 80 kg.ha^-1of ammonium nitrate, no significant difference was observed in the biological yield, grain yield , percentage and yield of essential oil, it is possible to use 40 kg.ha^-1of ammonium nitrate combined with the biofertilizers, while reducing the consumption of chemical fertilizer by 50%, the grain yield, percentage and yield of essential oil do not decrease significantly.<br />  https://sustainagriculture.tabrizu.ac.ir/article_19727_26ccbf6dd3887188e20f038655eb0f15.pdf