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A field trial was conducted at cotton research station, Sirsa, Haryana, India during the kharif season to study the performance of H-1098 (i) cotton variety under different spacing and nitrogen levels. The experiment was carried out in split plot design consisting of four spacing levels placed in main plots while sub plot contained four different doses of nitrogen with three replications.H-1098(i) variety of cotton was tested under different spacing viz; 67.5 cm × 10 cm, 67.5 cm × 15 cm, 67.5 cm × 22.5 cm and 67.5 cm × 30 cm and nitrogen levels viz; 75%, 100%, 125%, and 150% application of the recommended dose of nitrogen. Recommended dose of nitrogen of cotton crop was 87.5 kg/ha. Results demonstrated that spacing of 67.5 cm × 30 cm recorded significantly maximum seed cotton yield per plant whereas, higher seed cotton yield per hectare was produced in 67.5 cm × 15 cm spacingand while, 67.5 cm × 10 cm spacing had significantly higher stick and biological yield as compared to rest of treatments. Higher gross returns (115905 Rs/ha), net returns (58122 Rs/ha) and benefit cost ratio (2.0) was achieved with 67.5 cm × 15 cm spacing than rest of three spacing. In the term of fertilization, increased level of nitrogen significantly increased the yield parameters such as yield/plant, yield/hectare, stick yield, biological yield and economical parameters of net returns and benefit cost ratio (B:C) up to 125% Recommended dose (RD) of nitrogen which remained statisticall yat par with 150% RD of nitrogen. In conclusion, different levels of crop geometry and nitrogen doses had significant effect on performance, yield, productivity and economics of cotton cultivar H-1098 (i).

Interactive Effect of Spacing and Nitrogen Fertilization on Yield Parameters and Economics of Cotton (Gossypium hirsutum L.) Variety H-1098(i)