Effects of Italian Ryegrass ( Lolium multiflorum ) Cultivation for Green Manure and Forage on Subsequent Above- and Below-Ground Growth and Yield of Soybean ( Glycine max )

Miri Choi, Nayoung Choi, Jihyeon Lee, Sora Lee, Yoonha Kim and Chaein Na ()
Additional contact information
Miri Choi: Division of Applied Life Science (BK21), Gyeongsang National University, Jinju 52828, Republic of Korea
Nayoung Choi: Future Agriculture Center, Kyung Nong Corporation, Gimje 54338, Republic of Korea
Jihyeon Lee: Crop Physiology and Production, National Institute of Crop Science, Rural Development Administration, Wanju 55365, Republic of Korea
Sora Lee: Division of Applied Life Science (BK21), Gyeongsang National University, Jinju 52828, Republic of Korea
Yoonha Kim: Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
Chaein Na: Division of Applied Life Science (BK21), Gyeongsang National University, Jinju 52828, Republic of Korea

Agriculture, 2023, vol. 13, issue 10, 1-14

Abstract: To diversify upland cropping systems, Italian ryegrass ( Lolium multiflorum ; IRG) can be incorporated as forage or green manure to soybean ( Glycine max L.). The current study was conducted to analyze the effect of IRG cultivar and usage methods on the subsequent soybean above- and below-ground growth, as well as the yield, under different conditions. Three cycles of crop rotation were implemented with the combination of IRG cultivar (early maturing “Kowinearly”; late maturing “Winterhawk”), IRG usage (green manure for which both above- and below-ground biomass was incorporated, +CC; and forage for which only below-ground biomass was incorporated, −CC), and fallow soil as control. The soybean yield of +CC was consistently high regardless of the IRG cultivar, and it demonstrated an increase even under unfavorable weather conditions, while −CC treated did not differ from control. Incorporated IRG could serve as a starter fertilizer (79 to 156 kg ha −1 of N input). Soybean root characteristic differences showed substantial variability depending on the year and treatments. However, when compared to the control, no adverse effects of IRG were evident. Thus, using IRG as a green manure has the potential to enhance soybean yield, while using IRG as a forage could bring additional harvested matter to the rotational system.

Keywords: cover crop; crop rotation; nitrogen; root characteristics (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2077-0472/13/10/2038/pdf (application/pdf)
https://www.mdpi.com/2077-0472/13/10/2038/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jagris:v:13:y:2023:i:10:p:2038-:d:1265337

Access Statistics for this article

Agriculture is currently edited by Ms. Leda Xuan

More articles in Agriculture from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().