Univrsity of Tehran Press Iranian Journal of Field Crop Science 2008-4811 53 3 2022 09 23 Effect of different fertilizer sources on growth, forage yield and advantage indices of chicory-annual medic intercropping Effect of different fertilizer sources on growth, forage yield and advantage indices of chicory-annual medic intercropping 93 105 91467 10.22059/ijfcs.2021.320955.654816 FA Mehrnoosh Garshasbi Department of Agriculture, Faculty of Agriculture, Shahrekord State University, Shahrekord, Iran Mohammad Rafieiolhossaini Department of Agriculture, Faculty of Agriculture, Shahrekord University, Iran Sina Fallah Department of Agronomy, Faculty of Agronomy, Shahrekord University, Shahrekord, Iran Ali Ashraf Jafari Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran Shamsali Rezazadeh Department of Pharmacognosy and Pharmacy, Institute of Medicinal Plants, ACECR, Karaj, Iran Journal Article 2021 03 28 In order to investigate the effect of different sources of fertilizer and patterns of mixed cultivation of chicory (<em>Cichorium intybus </em>L.) and annual medic (<em>Medicago scutellata</em>) on agromorphological characteristics and forage yield , a factorial experiment was carried out  in a randomized complete block design with three replications at the Behbahan agricultural Research farm, Iran. The first factor was different fertilizer sources (chemical, organic and integrated (in three levels including chemical fertilizer (urea + triple super phosphate), vermi-compost fertilizer and combined fertilizer (50% chemical fertilizer + nitroxin biofertilizer + fertile phosphate 2) and  the second factor was five levels of intercropping patterns including pure cultivation of chicory, pure cultivation of annual medic, one row of chicory: one row of annual medic, one row of chicory: two rows of annual medic and two rows of chicory: one row of annual medic. Studied traits for chicory and medic were plant height, number of sub-branches, number of leaves per plant, chlorophyll index, leaf area index, dried forage yield and advantageous indices of intercropping including land equivalent ratio (LER), actual yield loss (AYL) and intercropping advantage (IA). The results showed that different treatments had significant effects on the studied traits. The maximum dried yield of chicory and annual medic (4 and 4.6 ton.ha^-1, respecyively) obtained in pure cultivation and chemical fertilizer source, which was not significantly different from pure cultivation and vermin-compost and integrated fertilizer sources. Considering the total yield of two crops and land equivalency ratio higher than one, the mixed ratios of chicory-medic replacement with vermin-compost and combined fertilizer sources were beneficial compared to sole cropping of each crop. In order to investigate the effect of different sources of fertilizer and patterns of mixed cultivation of chicory (<em>Cichorium intybus </em>L.) and annual medic (<em>Medicago scutellata</em>) on agromorphological characteristics and forage yield , a factorial experiment was carried out  in a randomized complete block design with three replications at the Behbahan agricultural Research farm, Iran. The first factor was different fertilizer sources (chemical, organic and integrated (in three levels including chemical fertilizer (urea + triple super phosphate), vermi-compost fertilizer and combined fertilizer (50% chemical fertilizer + nitroxin biofertilizer + fertile phosphate 2) and  the second factor was five levels of intercropping patterns including pure cultivation of chicory, pure cultivation of annual medic, one row of chicory: one row of annual medic, one row of chicory: two rows of annual medic and two rows of chicory: one row of annual medic. Studied traits for chicory and medic were plant height, number of sub-branches, number of leaves per plant, chlorophyll index, leaf area index, dried forage yield and advantageous indices of intercropping including land equivalent ratio (LER), actual yield loss (AYL) and intercropping advantage (IA). The results showed that different treatments had significant effects on the studied traits. The maximum dried yield of chicory and annual medic (4 and 4.6 ton.ha^-1, respecyively) obtained in pure cultivation and chemical fertilizer source, which was not significantly different from pure cultivation and vermin-compost and integrated fertilizer sources. Considering the total yield of two crops and land equivalency ratio higher than one, the mixed ratios of chicory-medic replacement with vermin-compost and combined fertilizer sources were beneficial compared to sole cropping of each crop. https://ijfcs.ut.ac.ir/article_91467_82db43833dcd9d682d6e398bc7f4dfa6.pdf