<div style="text-align: justify;">The success of planning for watershed developmental activities depends on the quality and quantity of information available of natural resources. The process of assessing soil erosion using conventional methods is cumbersome, time-consuming and costly therefore, in the present study, an attempt has been made to estimate sediment delivery ratio at sub-watershed level using RUSLE and SWAT Model. The raster layers of K, L, S, C, P factors and computed R factor value was used to derive gross soil erosion map of study area using raster calculator of spatial analyst tools in ArcGIS interface. The MUSLE was used to route and estimate the sediment yield at watershed outlet using SWAT model. Highest area covered by agricultural land (i. e. 41.54) of study area having 33.28 tons/ha/yr gross soil erosion needs immediate treatment of soil conservation in order to reduce water erosion. The average gross soil erosion rate for study area was estimated as 39.25 tons/ha/yr whereas, the sediment yield by SWAT was estimated to be 22.78 tons/ha./year. The estimated sediment delivery ratio indicates that 58 per cent of eroded soils go out of the watershed which reduces the soil depth and fertility of land on site and reaches Karjan reservoir thus reducing the water storage capacity of reservoir each year.</div>

Estimation of sediment delivery ratio at sub-watershed level using revised and modified USLE

<div style="text-align: justify;">A field experiment was established to study the impact of foliage fertilization of microelements (Fe and Mo) on lentil at the Agricultural Research Farm Mingora, Swat, Pakistan in 2016-17. All the treatments were assigned in random block design. The results showed that iron (Fe) and molybdenum (Mo) significantly improved the yield and quality of lentil crop. Based on the obtained results, the majority of the parameters increased with the combined application of Fe and Mo. The combined application of Fe and Mo at 500 and 100 g ha-1 produced the maximum grain yield (1361 kg ha-1), biological yield (3126 kg ha-1), 1000 grain weight (54.62 g), protein percent (30 %), N uptake (65.32 kg ha-1), Fe (48.33 mg/g) and Mo (5.07 mg/g) concentration. Results further revealed that Mo at the rate of 100 g ha-1 significantly enhanced the number of nodules (9.13 plant-1) and active nodules (8.03plant-1). These results suggested that Fe and Mo in optimal amount solely or as a blend considerably improve the growth, yield and quality of lentil crop and is therefore recommended for the better production of lentil crop in the agro-climatic condition of Swat valley.</div>

<div style="text-align: justify;">The impact of foliage fertilization of iron and molybdenum on yield, N uptake and root nodulation of lentil (<em>Lens Culinaris</em> Medic) crop</div>

Estimation of sediment delivery ratio at sub-watershed level using revised and modified USLE

The impact of foliage fertilization of iron and molybdenum on yield, N uptake and root nodulation of lentil (Lens Culinaris Medic) crop