Vol. 10, Issue 10 (2021)

Author(s):
Ashish Meena, PC Chaplot, Ashok Kumar Meena, J Choudhary, Deen Dayal Bairwa and Deepak Meena

Abstract:
A field experiment entitled “Performance of Fenugreek (Trigonella foenum-graecum L.) under Varying Levels of Silicon under Restricted Irrigation Conditions” was conducted at Instructional Farm of Agronomy, Department of Agronomy, Rajasthan College of Agriculture, MPUAT, Udaipur during the rabi season of 2020-21 to study the effect of silicon levels under varying soil moisture regimes, selection of suitable irrigation level and arrive at most economically viable treatment. The soil of experimental field was clay loam in texture, slightly alkaline in reaction (pH 8.5), medium in available nitrogen (278.42 kg ha^-1) and phosphorus (18.07 kg ha^-1) while high in available potassium status (312.45 kg ha^-1). The experimental design split plot design was used comprises main factor irrigation having four levels viz., control, one, two and three irrigations sub plot factor silicon which also having four levels viz., control, 50, 100 and 150 kg ha^-1 combined having 16 treatment combinations, which were replicated three time. Fenugreek crop variety PRM-45 was used as test crop. The results revealed that application of three irrigations at 20, 40 and 60 DAS in fenugreek crop produced significantly increased nutrient content and uptake. Among irrigation levels, application of three irrigations at 20, 40 and 60 DAS proved most effective in elevating nutrient status of seed and haulm as compared to two one and no irrigation. The fenugreek crop irrigated thrice at 20, 40 and 60 DAS accumulated highest quantum of nutrients in seed and haulm, thereby total accumulation. The magnitude of increase in total N, P and K uptake by crop was 14.83, 15.23, 11.5 per cent over two, 37.61, 38.13, 23.66 per cent over one and 78.32, 57.14, 83-37 per cent over no irrigation, respectively. Crops fertilized with 150 kg silicon ha^-1 accumulated highest quantum of nutrients in seed and haulm, thereby total accumulation closely followed by application of 100 kg ha^-1. The magnitude of increase in total N, P and K uptake due to application of 150 kg silicon ha^-1 was14.58, 14.77, 7.73 and 29.75, 29.48, 18.89 per cent over application of 50 kg silicon ha^-1 and control, respectively. The corresponding increases in total uptake due to application 100 kg silicon ha^-1 was and 10.85, 13.8, 5.55 and 25.52, 27.32, 16.47 per cent, respectively.