The study was carried out with an objective ofimpruving the soil fertility and enhance the upland
rice crop productivity, ·by identifying suitable higher yielding land races of upland rice and
summer legumes that could be grown as an inter crop in the upland rice production systems.
Local/and races of legumes and upland rice, were collected from the mid-hills and tar areas of
Nepal. These land races were evaluated and selected for intercropping study. Inter-cropping
experiments by using the selected land races of upland rice and legumes were conducted in
Randomized Complete Block Design with three replications, at both On-station and On-farm
conditions in Mid-western mid-hills. On-farm and On-station experiments have been ~.~~. •ducted
for . three years (19991 2000 -200112002). On-station e;r:periments were carried out at ARS.
Surkhet, where as On-farm experiments were carried out at the on-farm sites of Surkhet and
Dai/ekh Districts of Nepal. The upland rice (Oryza sativa L.)-Damari, Soybean (Glycine max L.)Sathiya
and Black gram (Vigna mungo L. )-Maintada local exhibited the best performance in
Inter-cropping system. The land equivalent ratios (LER) were found /.89 and 1.82 in the upland
rice inter- cropped with Black gram (Maintada local) in the ratio of 3:2 and 4:2. LER 1.65 was
obtained from upland rice and soybean (Sathiya} in 3:2 ratio. Considering the soil fertility status
of the experimental sites, fertility trend showed the increased total Nitrogen, Organic Matter and
available phosphorus. indicating the positive impact in soil fertility sustainability in the long mn.

The study was carried out with an objective ofimpruving the soil fertility and enhance the upland
rice crop productivity, ·by identifying suitable higher yielding land races of upland rice and
summer legumes that could be grown as an inter crop in the upland rice production systems.
Local/and races of legumes and upland rice, were collected from the mid-hills and tar areas of
Nepal. These land races were evaluated and selected for intercropping study. Inter-cropping
experiments by using the selected land races of upland rice and legumes were conducted in
Randomized Complete Block Design with three replications, at both On-station and On-farm
conditions in Mid-western mid-hills. On-farm and On-station experiments have been ~.~~. •ducted
for . three years (19991 2000 -200112002). On-station e;r:periments were carried out at ARS.
Surkhet, where as On-farm experiments were carried out at the on-farm sites of Surkhet and
Dai/ekh Districts of Nepal. The upland rice (Oryza sativa L.)-Damari, Soybean (Glycine max L.)Sathiya
and Black gram (Vigna mungo L. )-Maintada local exhibited the best performance in
Inter-cropping system. The land equivalent ratios (LER) were found /.89 and 1.82 in the upland
rice inter- cropped with Black gram (Maintada local) in the ratio of 3:2 and 4:2. LER 1.65 was
obtained from upland rice and soybean (Sathiya} in 3:2 ratio. Considering the soil fertility status
of the experimental sites, fertility trend showed the increased total Nitrogen, Organic Matter and
available phosphorus. indicating the positive impact in soil fertility sustainability in the long mn.