Effect of row spacing, nitrogen and weed control on growth, yield and nutrient uptake of sorghum (Sorghum bicolor)
DOI:
https://doi.org/10.59797/ija.v50i2.5086Keywords:
Sorghum, Row spacing, Nitrogen, Atrazine, Hoeing, Weed, Nutrient uptakeAbstract
A field experiment was conducted during the rainy seasons of 1998 and 1999, at Rajasthan College of Agricul- ture, Udaipur, to study the effect of row spacing, nitrogen and chemical / cultural weed - control practice on sor- ghum [Sorghum bicolor (L.) Moench] production. Row spacing had no significant influence on growth parameters and nutrient uptake. The maximum grain yield was obtained with 60 cm row spacing (23.48 qlha). There was no significant difference in yield due to 60 and 80 cm row spacing. Application of 80 kg N/ha significantly increased grain yield and total N uptake by crop and weeds; however total P uptake was significantly increased up to 120 kg N/ha. Atrazine Q 0.5 kg a.i./ha +I hoeing at 35 days significantly increased yields, N and P uptake over atrazine alone.References
Balyan, J.S. and Singh, S.P. 1985. Effect of plant rectangularity and nitrogen on sorghum under dry land conditions. Indian Jour- nal of Agronomy 30 (3) : 391-392.
Jay Kumar, R., Siddewaran, K, Kernpuchetty, N. and Subramainan,
S. 1987. Studies on nitrogen and weed management in rela- tion to nutrient uptake and yield of sorghum. Madras Agri- culture Journal 74 (1) : 21-25.
Salimath, V.N., Patil, V.S., Hiremath, S.M. and Malligawad, L.H. 1991. Response of rabi sorghum genotype to row spacing in transitional tract of Kamataka. Karnataka Journal of Agri- culture Science 4 (3-4) : 177-178.
Shelke, D.K., Bhosle, R.H., Jadhav, N.S. and Nankar, J.T. 1986. Studies on cropweed compitition in kharifsorghum. (In) Abstracts of Annual Conference of Indian Society of Weed Science, pp. 59, held at Agricultural Research Station, Durgapura, Jaipur, Rajasthan.
Singh, I., Chouhan, G.S. and Choudhary, L.S. 1993. Response of sorghum (Sorghum bicolor L.) to nitrogen and phosphate under western Rajasthan condition. Indian Journal of Agronomy 38 (2) : 305-306.
Wicks, G. A. and Bumiside, O.C. 1972. Pre-planting atrazine appli- cation on sorghum. Weed Science 20 (1) : 49-52.
