![](https://www.sorghum-id.com/content/uploads/cache/2019/02/illustration-double-culture/3827228610.jpg , https://www.sorghum-id.com/content/uploads/cache/2019/02/illustration-double-culture/3982836802.jpg 2x)
The advantages of relay-cropping (that double cropping cannot achieve) are many :
- Make the crop cycle longer
- Allow earlier harvesting
- Lower humidity during harvesting
- Lower irrigation water needs
To read more, in 2018, technical institute Arvalis led comparative studies on sorghum under 3 modalities: traditional crop (only sorghum), relay cropping –barley + sorghum) and double cropping (barley then sorghum).