Gorgan University of Agricultural Sciences International Journal of Plant Production 1735-6814 8 1 2014 01 01 Forage yield and quality of barley-annual medic intercrops in semi-arid environments 77 89 1373 10.22069/ijpp.2014.1373 EN A. Sadeghpour Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, 01003, USA. E. Jahanzad Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, 01003, USA. A.S. Lithourgidis Department of Agronomy, Aristotle University Farm of Thessaloniki, 570 01 Thermi, Greece. M. Hashemi Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, 01003, USA. A. Esmaeili Department of Agronomy and Plant Breeding, University of Tehran, Karaj, Tehran, Iran. M.B. Hosseini Department of Agronomy and Plant Breeding, University of Tehran, Karaj, Tehran, Iran. Journal Article 2013 11 23 On-farm production of protein is limited in most dairy farm operations in arid <br>and semi-arid environments. Cereal-legume intercropping could be a viable option <br>to obtain forage with higher protein content. A two-year experiment was conducted <br>during 2009 and 2010 growing seasons in a loamy soil to determine whether <br>intercropping pattern of barley (<em>Hordeum vulgare </em>L.) and annual medic (<em>Medicago</em> <br><em>scutellata </em>L.) could increase forage quality while producing sufficient amount of <br>forage yield. The results showed that when number of rows in 50:50 replacement <br>intercropping decreased from six rows of barley and six rows of medic (6B:6M) <br>(strip intercropping) to 4B:4M, 2B:2M and 1B:1M, barley forage yield increased <br>by 9, 18 and 24% due to a wavy canopy created by 1B:1M and 2B:2M cropping <br>ratios. Land Equivalent Ratio (LER) was highest (1.19) when barley was <br>intercropped with annual medic in 1B:1M arrangement indicating that 19% more <br>area would be required by a sole cropping system to yield similar of intercropping <br>system. The highest protein yield was also obtained from 1B:1M ratio. Pure stand <br>of annual medic had the highest Crude Protein (CP) content (310.7 g kg-1 of DM) <br>whereas sole cropping of barley had the highest Neutral Detergent Fiber (NDF) and <br>Acid Detergent Fiber (ADF). When both forage yield and quality was considered, <br>the intercropping of barley and medic with 1B:1M ratio was superior to any other <br>ratios and can be recommended to farmers as an alternative to barley alone. <br><em>Keywords: </em>Annual medic; Barley; Crude protein; Forage; Intercropping; LER. https://ijpp.gau.ac.ir/article_1373_81bcb9a7d344934b2d6ebf2548770a4a.pdf