YIELD AND ECONOMICS OF SINGLE CUT FORAGE SORGHUM AS INFLUENCED BY ORGANIC AND INORGANIC SOURCES OF NITROGEN UNDER SUMMER SEASON

MOHAMMAD NABI*, SATPAL, NEELAM, K. K. BHARDWAJ AND N. KHAROR
Directorate of Agriculture, Irrigation and Livestock, Province – Paktia, Ministry of Agriculture, Afghanistan
Department of Genetics & Plant Breeding (Forage Section), Department of Agronomy,
Department of Soil Science, 5Department of Biochemistry
CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail : nabi.habibkhail@gmail.com)
(Received : 5 August 2021; Accepted : 22 September 2021)

SUMMARY

A field experiment was conducted at Forage Section Research Farm, Department of Genetics and Plant Breeding, CCS Haryana Agricultural University, Hisar (Haryana), India during the summer season of 2020 to assess the influence of organic and inorganic sources of nitrogen application on yield and economics of single cut forage sorghum during summer season. The experiment was laid out in randomized block design with nine treatments (inorganic, organic and integrated nitrogen sources) and replicated thrice. Among the different nitrogen sources viz. organic, inorganic or combination of both, T2 [100% RDN (Recommended Dose of Nitrogen) through inorganic source (Urea)] resulted in significantly higher growth at harvest i.e. plant height (282.47 cm) and dry matter accumulation/plant (106.73 g) and interns higher yields i.e. green fodder yield (45.64 t ha-1) and dry matter yield (11.98 t ha-1); higher quality parameters i.e. crude protein yield (1.07 t ha-1), digestible dry matter yield (6.20 t ha-1) of single cut forage sorghum over rest of treatments except T3 (75% RDN through inorganic source + 25% N through FYM) and T4 (75% RDN through inorganic source + 25% N through vermicompost). The green fodder, dry matter, crude protein and digestible dry matter yield with 100% RDN through urea was 3.05, 6.58, 9.18 & 4.90 and 1.65, 3.90, 8.39 & 4.73 per cent higher over 75% RDN through inorganic source+25% N through FYM and 75% RDN through inorganic source+25% N through vermicompost, respectively. The maximum net returns (Rs. 19895/ha) and B: C (1.54) were fetched with T2 followed by T3 (Rs. 16570/ha and 1.43, respectively) and T4 (Rs. 11593/ha and 1.26, respectively).

Key words:Forage sorghum, single-cut, FYM, vermicompost, fodder yield and economics

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