Tag Archives: N fixation

Sunnhemp

Seed of sunnhemp (Crotalaria juncea) is produced on the Bos Khnor Station (Chamcarleu district, Kampong Cham province). Sunnhemp is sown in association with others cover/relay crops as millet, sorghum, finger millet (Eleusine coracana) among others. As a legume, the sunnhemp develops a mutualistic relationship with rhizobacteria. This specie is also useful to decrease the abundance of plant-parasitic nematode and to decompact the soil through a strong and deep tap root system.

Sunnhemp, Bos Khnor, Kampong Cham, Florent Tivet, nov-2014
Sunnhemp, Bos Khnor, Kampong Cham, Florent Tivet, nov-2014

Cajanus cajan

Cajanus canjan cover crop, RM, by Rada Kong, nov-2015
Cajanus canjan cover crop, RM, by Rada Kong, nov-2015

Pigeon pea (Cajanus canjan) is one of the most suitable cover crops to ecological intensify the hybrid Corn cultivation on Mollisols under CA management. To avoid possible competition, Pigeon pea is sown 15 days after sowing the Corn. After harvesting the Corn in November, the Pigeon pea continues to grow crossing the dry season to suppress the weeds and improve the soil. The grain could be harvested for sale or animal feed.