Chorey, Dr. A. B.WANJARI, RAGINI MUKESHRAO.2021-12-062021-12-062022-01-06Citation: WANJARI, RAGINI MUKESHRAO. (2020). Response of fodder oat to silicon levels under different cutting management. Department of Agronomy, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. M. Sc. 2020. Print. xv, 141 p. (Unpublished).https://krishikosh.egranth.ac.in/handle/1/5810178708Description: A field investigation was carried out at farm of Agronomy department, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola during the rabi season of 2018. The present experiment was laid out in Factorial Randomized Block Design (FRBD) with twelve treatments which includes four silicon levels viz. 150,300,450 and 600 kg Si ha-1 continue with three cutting viz. no cut, cutting at 45 and cutting at 55 DAS, replicated thrice. In the present experiment to study the effect of levels of silicon on growth, yield and quality parameters of fodder oat. Cutting management can help in improving the yield and quality as well as availability of green fodder during different months of winter and spring season.Abstract: A field experiment entitled “Response of fodder oat to silicon levels under different cutting management’’ was conducted during rabi season of 2018 at the farm of Agronomy department, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. The experiment was laid out in Factorial Randomized Block Design (FRBD) with twelve treatments which includes four silicon levels viz. 150,300,450 and 600 kg Si ha-1 continue with three cutting viz. no cut, cutting at 45 and cutting at 55 DAS, replicated thrice. Application of silicon @600 kgha-1 produced significant effect on all growth and yield attributes, quality parameters and nutrients viz. plant height (at 40 DAS and at harvest except 20 DAS), number of tillers (at harvest and except 20 and 40 DAS), leaf: stem ratio (at 40 DAS), leaf area (at 40 DAS) and dry matter accumulation (at 40 DAS and at harvest), green forage yield (322.98 q ha 1), dry forage yield (47.03 q ha 1), seed yield (19.13 q ha 1), straw yield (141.49 q ha 1), crude protein (7.20%), ether extract (3.22 %), ash content (8.23 %), crude protein yield (3.21 qha 1) and crude fibre yield (15.09 qha 1) at cut, crude protein yield (5.84 qha 1) and crude fibre yield (48.69 qha 1) after harvest, total nitrogen, phosphorus, potassium and silicon uptake (120.24, 28.54 ,130.9 and 2.68 kg ha 1), available nitrogen, phosphorus, potassium and silicon in soil after harvest (241.49, 21.72, 350.69 and 69.49 kg ha 1), gross monetary returns (Rs. 114698 ha¬-1), net monetary returns (Rs. 79933 ha-1) and B:C ratio (3.29). However, crude fibre (36.82%) and nitrogen free extract (55.26%) was higher in silicon application @150 kgha-1. No cut treatment recorded highest plant height and dry matter accumulation at harvest (26.74 g), seed yield (18.14 q ha 1) and straw yield (140.58 q ha 1), crude protein yield (5.43 qha 1) and crude fibre yield (46.72 qha 1) after harvest, total N,P,K and Si uptake (116.38, 28.47,124.45 and 2.62 kgha-1), available N,P,K and Si in soil after harvest (237.59, 20.63, 348.92 and 68.39 kgha 1) while cut at 55 DAS produced significantly higher number of tillers at harvest, green forage yield (290.18 q ha 1) and dry matter yield (40.15 q ha 1), crude fibre (36.80 %), ether extract (3.07 %), ash content (8.19 %), crude protein yield (2.99 qha 1) and crude fibre yield (14.48 qha 1) at cut, Gross Monetary Returns (Rs. 98714 ha¬-1), Net Monetary Returns (Rs. 65007 ha-1) and B:C ratio (2.92). However, cut 45 DAS recorded highest crude protein (7.18 %) and NFE (55.38%).EnglishThesis