The objective of this study is to evaluate the effect of different intercropping patterns of sudangrass (a cereal
forage) and cowpea (a leguminous forage) on forage yield and its quality. Two field experiments were carried out
during 2018 and 2019 seasons at Sakha, Agricultural Research Station, Kafr El-Sheakh, Agriculture Research Center
(ARC), Giza, Egypt, to study the forage yield and quality of sudangrass and cowpea under different intercropping
patterns, i.e. (100% sudangrass+25% cowpea; 100% sudangrass+ 50% cowpea, 100% sudangrass+75% cowpea, 100%
sudangrass+100% cowpea, 75% sudangrass+25% cowpea, 50% sudangrass+50% cowpea and 25% sudangrass+75%
cowpea) of seeding rate per feddan, of sudangrass and cowpea compared to sole stands of both crops. Treatments
were laid out in a randomized complete block design with three replications. The obtained results showed that,
100% sudangrass + 75% cowpea (P3 treatment) gave the highest values yield/fed (fresh and dry yields). There was
an increasing in mixed cowpea plants [25% sudangrass + 75% cowpea (P7) recorded the highest (CP%)], while
increasing sudangrass in mixed of 100% sudangrass + 100% cowpea (P4) recorded the highest (CF%). 100%
sudangrass + 75% cowpea (P3) gave the highest values of the land equivalent ratio (LER), relative crowding
coefficient (K) and net return. The best intercropping pattern of 100% sudangrass + 75% cowpea (P3) which was
significantly the highest forage productivity and quality, land equivalent ratio (LER), relative crowding coefficient
(K), aggressivity and net return.