Estimation of the effect of intercropping on hay production and efficiency indices of vetch (Vicia narbonensis L.) and barley (Hordeum velgare L.) in weeds interference

Document Type : Research Paper


Lorestan University


The field experiment to study the effects of intercropping on weed control, in the Agricultural Research Station of Lorestan University of 2014-15 and 2015-16 in 4×5 factorial randomized complete block design with three replications, in two consecutive years in one place was carried out on dry land. In this experiment, two plants (legume and cereal or broad leaf vetch and barley cultivar Abidar) in the form of additive series intercropping system with four levels of weed (weeding, once weeding, double weeding and non-weeding) and complementary components of intercropping in five levelsThe lowest number of weeds (in square meters) of first and second year with a mixture of 100: 70 (barley:vetch) was equivalent to 21 and 21.35, sole cropping of barley was the lowest greatest weight weed control (34.54 g/m²). the levels mix, combination of 100: 40 and 100: 70 most of the weeds dry weight, respectively (24.56 and 23.77 gr/m2). So, at the mentioned levels (intercropping balanced) efficiency of weed control in the second year was than the first year. Also, by reducing the share of vetch from 100 to 70 and 40 percent, the exploitation of the environment reduced and minimum LERt in the second year and different levels of weed was belonged to 40:100 seed ratio.


Main Subjects

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Volume 49, Issue 3
November 2018
Pages 13-23
  • Receive Date: 15 November 2016
  • Revise Date: 21 September 2017
  • Accept Date: 30 October 2017
  • Publish Date: 22 November 2018