A field experiment was conducted at Agronomy Field unit, College of Agriculture, Shivamogga during kharif 2015-2016 and 2016-17 on sandy loamy soils to evaluate performance of promising Greengram varieties (Vigna radiate (L.) Wilczek) as influenced by different dates of sowing under rain fed situation in Southern Transitional Zone of Karnataka. Among three different varieties KKM-3 gave significantly higher grain yield (806.41 kg ha -1 ) and haulm yield (3206.14 kg ha -1 ) than PDM 84-178 (675.71 kg ha -1 and 2698.55 kg ha -1 , respectively) and SBM-1 (610.81 kg ha -1 and 2462.74 kg ha -1 , respectively) (Table 1). Variety KKM-3 showed per cent increase in grain and straw yield over variety PDM 84-178 (16.20% and 15.83%, respectively) and SBM-1 (24.25% and 23.18%, respectively). Among different dates of sowing 15 th July recorded significantly higher grain and straw yield (1252.86 kg ha -1 and 4912.04 kg ha -1 , respectively) followed by sowing KKM-3 on 30 th of July (878.82 kg ha -1 and 3344.05 kg ha -1 , respectively) and it was found on par with PDM 84-178 sown on 15 th of July (869.92 kg ha -1 and 3405.49 kg ha -1 , respectively) compared to variety SBM-1 on 15 th July (774.98 kg ha -1 and 3033.19 kg ha -1 , respectively) Among the interactions significant difference was noticed between date of sowing and variety with respect to yield components, sowing of variety KKM-3 sown on July 15 th recorded significantly higher number of clusters plant -1 , numbers of pods plant, numbers of seeds per pod (13.59, 53.03 and 11.10, respectively) compared to late sowing variety PDM 84-178 during August 30 th (6.96, 31.31 and 8.56, respectively) and late sowing variety SBM-1 on August 30 th (4.75, 17.57 and 8.03, respectively).

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Field experiments was carried out in Zonal Agricultural and Horticultural Research Station, Bavikere, Chikkamagalore, Karnataka during 2019-20. Identify the most suitable variety, suitable sowing time and subsequent interaction on nutrient uptake and yield production in rainfed soybean in red sandy loam soils. There were four dates of sowing viz., June II fortnight (D1), July I fortnight (D2), July II fortnight (D3), August I fortnight (D4) and three varieties of soybean viz.,, DSb-21, JS-335 and JS 93-05. The results shown that among the different dates of sowing at (D1) June II fortnight recorded significant uptake compared to other sowing dates. Among the different varieties DSb-21 recorded the highest nutrient uptake followed by JS-335. The yield obtained among the different date of sowing has found to be better with D1-June II fortnight and it would give 7.5, 26.94, 39.4 % more yield in soybean as compared to later sowing dates (D2, D3 and D4 respectively). This study concluded that delay in sowing will reduce the nutrient uptake, dry matter production and yield irrespective of the varieties. Among the varieties highest yield was recorded by the variety DSb-21 irrespective of the sowing date. and hence under delayed sowing conditions the variety DSb-21 is preferred over other varieties.