EFFECT OF DIFFERENT FERTILIZERS IN YIELD AND NODULATION OF COWPEA (VIGNA UNGUICULATA) UNDER MULCHED AND UN-MULCHED FIELD CONDITION IN CHITWAN DISTRICT, NEPAL

To study the effects on nodulation and yield of Cowpea (Vigna Unguiculata), a research had been conducted in the sandy loam soil of the horticulture farm of Agriculture and Forestry University in 2018. The experiment was laid out in factorial 2×5 Randomized complete block design with ten treatments and 3 replications which consists; 1st factor – mulched and un-mulched condition, 2nd factor – Rhizobium inoculation (R) at 1gm/ 16.66 gm seed, Phosphorus (P) at recommended dose of 120kg/ha ,use of R plus P(RP),RP plus Molybdenum (RPMo) at 2 gm Molybdenum per kg seed and control with no such application. The analysis of the findings showed that mulched and RPMo treatment were found significantly superior than other treatments in case of main effects of yield attributes like plant height, canopy diameter and stem number. The highest fresh weight of pods per plant i.e. 312.61 gm and 312.53 gm and no of nodules per plant i.e. 121.63 and 129.33 were found in mulched and RPMo treatment, significant at p