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Acta Prataculturae Sinica ›› 2023, Vol. 32 ›› Issue (2): 201-209.DOI: 10.11686/cyxb2022055

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Research status and development prospects of dual-purpose crops (grain and forage)

Liu-xing XU(), Yuan-yan MENG, Chang-fen LUO, Qi-wang QI, Jin-jing ZHENG, Ji-wang ZHANG, Li LIU, Xiao-long ZHANG, Yu-feng TANG, Dan WU(), Rong-jin CAI()   

  1. School of Agriculture and Life Sciences,Zhaotong University,Zhaotong 657000,China
  • Received:2022-01-30 Revised:2022-03-21 Online:2023-02-20 Published:2022-12-01
  • Contact: Dan WU,Rong-jin CAI

Abstract:

With population expansion, acceleration of urbanization processes and increase in household income, food consumption patterns have gradually changed. However, the development of animal husbandry is usually restricted by the availability of feed stocks. The reliable supply of high-quality animal feed is vital to the development of animal husbandry. Dual-purpose crops (grain and forage) alleviate the shortage of winter feed, and make an important contribution to agricultural production systems in regions with integrated agro-pastoral production in some countries. In this study, the current status and development trends in domestic and foreign research on dual-purpose crops is reviewed. Coverage includes: 1) Background of dual-purpose crops; 2) Concept of dual-purpose crops; 3) Representative areas; 4) Forage and grain yields and economic benefits; and 5) Animal utilization and livestock products. In addition, the problems faced and countermeasures implemented in the current dual-purpose crop production system are overviewed, including: 1) Selection of sowing time and sowing rate; 2) Nitrogen fertilizer management after grazing or mowing; 3) The appropriate crop growth stage for grazing or mowing; 4) Selection of germplasm resources. Overall, improper management of dual-purpose crops production (including grazing time, nitrogen application rate, seeding rate, and grazing intensity, among others) increases the risk of reduced grain yield. However, based on the benefits to agricultural production systems, it is profitable to manage crops in a dual-purpose mode.

Key words: dual-purpose crops, yield, forage