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

Abstract


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.


Keywords


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

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References


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