Effect of cutting management and nitrogen on yield, economics and energetic relationships of paragrass (Brachiaria mutica)
DOI:
https://doi.org/10.59797/ija.v44i1.3487Keywords:
, . Paragrass, Cutting management, N, Yield, EconomicsAbstract
A study was carried out during 1992 and 1993 to find out effect of cutting rnan- agernent and nitrogen levels on fodder production of paragrass [Brachiaria rnutica (Forskaal) Stapfl. The highest green-forage and dry-matter yields of 359.0 and 101.20 qlha respectively were recorded when the crop was cut at 60-day intervals and fertil- ized with 60 kg Nlha. This treatment also gave the highest gross return (Rs 17 9501 ha), net return (Rs 12,4891ha), net returnlrupee invested (Rs 4.671Re), gross energy out put (182,160 MJlha) and net energy out put (178,719 MJIha). However, the highest energy-use efficiency (152.23) and energy productivity (6,743 g M.l/ha) were obtained where no N was applied and the crop was cut at an interval of 75 days.References
Effect of cutting management and nitrogen on yield, economics and energetic relationships of paragrass (Brachiaria mutica)
S. CHOUBEY, R.K. BHAGATANDV.~.
Department of Agronomy, Birsa Agricultural University, Ranchi, Bihnr 834 006
Received: November 1997
A study was carried out during 1992 and 1993 to find out effect of cutting rnan- agernent and nitrogen levels on fodder production of paragrass [Brachiaria rnutica (Forskaal) Stapfl. The highest green-forage and dry-matter yields of 359.0 and 101.20 qlha respectively were recorded when the crop was cut at 60-day intervals and fertil- ized with 60 kg Nlha. This treatment also gave the highest gross return (Rs 17 9501 ha), net return (Rs 12,4891ha), net returnlrupee invested (Rs 4.671Re), gross energy out put (182,160 MJlha) and net energy out put (178,719 MJIha). However, the highest energy-use efficiency (152.23) and energy productivity (6,743 g M.l/ha) were obtained where no N was applied and the crop was cut at an interval of 75 days.
Key words :Paragrass, Cutting management, N, Yield, Economics
Balance feed including green fodder is kg N/ha (20 kg N/ha as basal + 20 kg N at 30 pivotal for enhancing the milk production. DAP), 60 kg N/ha (20 kg N/ha as basal + 40 Paragrass is an important fodder crop particu- kg N in 2 equal split at 30-day intervals) and larly for the low-lying areas of Bihar where 80 kg N/ha (20 kg Nlha as basal + 60 kg N in no other fodder can be grown successfully. It 3 equal splits at 30-day intervals), and 4 cut- provides green forage to milch animals, spe- ting managements, viz. 30,45,60 and 75 days cially during lean period of November and intervals. December. An information on its agro-tech- The annual rainfall during 1992 and
