to find out the effect of biochar and FYM on growth, yield and chemical composition of fodder sorghum [Sorghum bicolor (L.) Moench] grown in saline soil. The treatment comprised four levels of biochar (B0: 0 t ha -1 , B1: 2.5 t ha -1 , B2: 5.0 t ha -1 , B3: 7.5 t ha -1 ) and three levels of FYM (F0: 0 t ha -1 , F1: 5.0 t ha -1 , F2: 10.0 t ha -1 ) which were laid out in completely randomized design (factorial). The growth and yield parameters namely germination percentage, plant population, plant height, green forage yield and dry matter yield as well as uptake of nitrogen, phosphorus and potassium by fodder sorghum were significantly increased by treatment of application of biochar @5.0 t ha -1 and @7.5 t ha -1 as well as application of FYM @10.0 t ha -1 alone or in combination.
A field experiment was conducted for boosting the productivity of kharif sweet corn (Zea mays Saccharata) at Agronomy Farm,RCSM College of Agriculture, Kolhapur (M.S.), India during kharif, 2020 in black Vertisolsoil using split plot design with four replications and two factors, where main plot factors consist of time of application viz T1:15 days after sowing (DAS), T2: 30 DAS and T3: 45 DAS and sub plot factors consist of levels of nano nitrogen (N) fertilizers vizN1: 1.00 L ha-1, N2: 1.25 L ha-1 and N3:1.50 L ha-1. The results showed that at harvest, maximum plant height (183.41 cm), number of leaves (8.86 plant-1), leaf area (58.40 dm2plant-1), dry matter accumulation (117.18 gplant-1), length of cob (18.55 cm), diameter of cob (16.83 cm), weight of cob per plant (208.65 g), number of grains (371.25 cob-1), green cob yield (125.96 q ha-1), green fodder yield (344.39 q ha-1), total uptake plant in total ((264, 98 and 230 kg ha-1),yield of protein by grain (92.89 g kg-1) and stover (50.96 g kg-1) were obtained from treatment N3 (1.5 L ha-1) which was on par with treatment N2 (1.25 L ha-1) and significantly superior over N1 (1 L ha-1). While main plot showed that at harvest plant height (191.90 cm), number of leaves(10.09plant-1), leaf area (62.63 dm2plant-1), dry matter accumulation (123.51 gplant-1), length of cob (20.56 cm), diameter of cob (19.71 cm), weight of cob (222.29 g plant-1), number of grains (402.07 cob-1), green cob yield (138.32q ha-1),stover yield (359.75q ha-1), total uptake(287, 113 and 262 kg ha-1), yield of protein by grain (97.36 g kg-1) and stover (51.77 g kg-1)were significantly maximum when foliar spray of NN was done at 15 (DAS). The foliar application at 15 DAS had taken minimum number of days to reach 50 per cent of tasselling (51.62 days) and silking (55.97 days).
A field experiment was conducted at Agronomy Farm, RCSM College of Agriculture, Kolhapur (M.S.), India during Kharif, 2020 in black Vertisol soil using split plot design with four replications. The main plot factors consist of time of application viz., T1: 15 days after sowing (DAS), T2: 30 DAS and T3: 45 DAS and sub plot factors consist of doses of nano nitrogen (N) fertilizers viz., N1: 1.00 litre per ha, N2: 1.25 litre per ha and N3: 1.50 litre per ha making total nine treatment combinations. The results of main plot showed that length of cob (20.56 cm), diameter of cob (19.71 cm), weight of cob per plant (222.29 g), number of grains per cob (402.07), green cob yield per ha (138.32 q), green fodder yield per ha (359.75 q), protein content in grain (9.74%) and crude protein in stover (5.18%) were significantly maximum when foliar spray was done at 15 days after sowing (DAS). The gross monetary return (Rs. 5,93,172.04 ha-1) and net monetary return (Rs. 3,78,016.10 ha-1) were significantly maximum with foliar spray at 15 DAS (T1) over later spraying at 30 DAS (T2) and 45 DAS (T3). While, in sub-plot length of cob (18.55 cm), diameter of cob (16.83 cm), weight of cob per plant (208.65 g), number of grains per cob (371.25), green cob yield per ha (125.96 q), green fodder yield per ha (344.39 q), protein content in grain (9.29%) and crude protein in stover (5.10%) were obtained from treatment N3 (1.5 litre ha-1) which was on par with treatment N2 (1.25 litre ha-1) and significantly superior over N1 (1 litre ha-1). The highest value of the gross monetary return (Rs. 5,80,827.23 ha-1) and net monetary return (Rs. 3,59,534.55 ha-1) were obtained from treatment N3 (1.5 litre ha-1) which was at par with treatment N2 (1.25 litre ha-1) and significantly superior over treatment N1 (1.00 litre ha-1).
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