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Research article2019Peer reviewedOpen access

Narrow-wide-row planting pattern increases the radiation use efficiency and seed yield of intercrop species in relay-intercropping system

Raza, Muhammad Ali; Feng, Ling Yang; van der Werf, Wopke; Cai, Gao Ren; Bin Khalid, Muhammad Hayder; Iqbal, Nasir; Hassan, Muhammad Jawad; Meraj, Tehseen Ahmad; Naeem, Muhammd; Khan, Imran; Rehman, Sana ur; Ansar, Muhammad; Ahmed, Mukhtar; Yang, Feng; Yang, Wenyu

Abstract

Planting arrangements affect radiation use efficiency (RUE) and competitiveness of intercrop species in intercropping systems. Here, we reveal that narrow-wide-row planting arrangement in maize-soybean relay-intercropping system increases the dry matter and competitiveness of soybean, increased the RUE of maize and soybean, and compensates the yield loss of maize by substantially increasing the yield of soybean. In this field study, maize was planted with soybean in different planting arrangements (P1, 20:180, P2, 40:160; P3, 60:140, and P4, 80:120) of relay intercropping, all the relay-intercropping treatments were compared with sole crops of maize (SM) and soybean (SS). Results showed that P1 improved the total RUE 3.26 g/MJ (maize RUE + soybean RUE) of maize and soybean in relay-intercropping system. Compared to P4, treatment P1 increased the soybean competition ratio (CR) values (by 55%) but reduced the maize CR values (by 29%), which in turn significantly improved the yield of soybean by maintaining the maize yield. Generally, in P1, soybean produced 82% of SS yield, and maize produced 88% of SM yield, and it achieved the land equivalent ratio of 1.7. These results suggest that by maintaining the appropriate planting distances between maize and soybean we can improve the competitiveness and yield of intercrop species in relay-intercropping system.

Keywords

competition; intercropping; land equivalent ratio; radiation use efficiency

Published in

Food and energy security
2019, Volume: 8, number: 3, article number: e170
Publisher: WILEY

      SLU Authors

    • Ahmed, Mukhtar

      • Department of Agricultural Research for Northern Sweden, Swedish University of Agricultural Sciences
      • Pir Mehr Ali Shah Arid Agriculture University

    Sustainable Development Goals

    End hunger, achieve food security and improved nutrition and promote sustainable agriculture

    UKÄ Subject classification

    Agricultural Science

    Publication identifier

    DOI: https://doi.org/10.1002/fes3.170

    Permanent link to this page (URI)

    https://res.slu.se/id/publ/101489