Yield, quality and weed dynamics in Sida hemp (Sida alnifolia L.) as influenced by growing condition, manuring and weed management methods

P. T. Vidhu Priyadarsini, P. V. Sindhu, Meera V. Menon


A field experiment was undertaken to assess the performance of sida hemp under different growing conditions, manuring and weed management methods at Agronomy farm of College of Horticulture, Kerala Agricultural University, Vellanikkara, Thrissur during 2018-19. Treatments comprised two growing conditions (open and 50 per cent shade), two levels of manuring (no manure and FYM@10 t ha-1), and four weed management practices (black polythene mulching, organic mulching with paddy straw @ 5 t ha-1, hand weeding and no weeding).Taller plants were observed under 50 per cent shaded condition. Growing condition, manuring and weed management significantly influenced the root yield of Sida alnifolia. The highest root yield of 882 kg ha-1was recorded in crops grown under open condition. The yield under shaded condition was 658 kg ha-1. The highest root yield was recorded in treatment combination, black polythene mulching with FYM under open condition (1466 kg ha-1), followed by black polythene mulching without manure under open condition (1192 kg ha-1). Significantly higher total alkaloid content (3.13 per cent) was observed in plants grown under open condition. Mulching with black polythene resulted in better control of weeds, followed by organic mulching.


Sida hemp, Growing condition, Manuring, Weed management, Mulching

Full Text:



Abdel-Mawgoud, A. M. R., El-Abd, S. O., Singer, S. M., Abou-Hadid, A. F. and Hsiao, T. C. 1995. Effect of shade on the growth and yield of tomato plants. Acta Hortic. 434:313-320.

Dejene K. M. and Lemlem S. M. 2012. Integrated Agronomic Crop Managements to Improve Tef Productivity Under Terminal Drought. In: Ismail, M., Rahman, M. and Hasegawa, H. (eds), Water Stress. In Tech open sciences, pp. 235-254.

Gunasekaran, P. and Shakila, A. 2014. Effect of mulching on weed control and tuber yield of medicinal coleus (Coleus forskholli Briq.). Asian J. Hortic. 9(1): 124 - 127.

Harborne, A. J. 1973. Phytochemical methods a guide to modern techniques of plant analysis. Chapman and Hall, London, 295p.

Jama, B., Swinkles, R. A. and Buresh, R. J. 1997. Agronomic and economic evaluation of organic and inorganic phosphorus in western Kenya. Agron. J. 89: 597-604.

Kaur, K. P. 2015. Effect of FYM levels and mulch sources on growth, productivity and water use of brinjal (Solanum melongena) at varying irrigation depth. MSc. (Ag) thesis, Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya, Palampur, 80p.

Latha, A. and Radhakrishnan, V. V. 2015. Variation in root yield and ephedrine content of Bala (Sida cordifolia Linn.) at differential harvesting under open and shaded situation. J. Trop. Agric.53 (1): 42-47.

Pramanik, S. C. 1999. In situ conservation of residual soil moisture through tillage and mulch for maize (Zea mays L.) in tropical bay islands. Indian J. Agric. Sci. 69(4):254-257.

Schonbeck, M. W. and Evanylo, G. K. 1998. Effects of mulches on soil properties and tomato production I. soil temperature, soil moisture and marketable yield. J. Sustain. Agric. 13(1):55-81.

Zhang, Y. J., Meng, X. H., Yang, D. F., Xu, L. and Zhang, X. Y. 2009. Comparative study on chemical constituents of Pinellia ternate (Thunb.) Breit. under different light intensities. J. Wuhan. Bot. Res. 27(5): 533-536.


  • There are currently no refbacks.

A KAU publication [CODEN: JTAGEI; ISSN 0971-636X; eISSN 0973-5399]