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TUDIES ON INTEGRATED WEED MANAGEMENT IN TURMERIC (Curcuma longa L)

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Puli Sridhar Reddy Final Pdf.pdf(6.2 MB)

(VEGETABLE SCIENCE)

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SHARMA, H DEV
UHF, NAUNI
79+iv
integrated weed management,turmeric, Palam Lalima
integrated weed management,turmeric, Palam Lalima
M.Sc

ABSTRACT The present investigation entitled “Studies on integrated weed management in turmeric (Curcuma longa L)” was carried out with cv Palam Lalima and the experiment was laid out in RCBD with three replications at Vegetable Research Farm, Department of Vegetable Science, Dr YSPUHF, Nauni, Solan (HP) during kharif 2017. The ten treatments comprised of T1: Metribuzin 0.7 kg ai/ha PE fb two HW, T2: Metribuzin 0.7 kg ai/ha PE fb mulch 10 t/ha fb one HW, T3: Pendimethalin 1.0 kg ai/ha PE fb two HW, T4: Pendimethalin 1.0 kg ai/ha PE fb mulch 10 t/ha fb one HW, T5: Atrazine 0.7 kg ai/ha PE fb two HW, T6: Atrazine 0.7 kg ai/ha PE fb mulch 10 t/ha fb one HW, T7: Oxyfluorfen 0.3 kg ai/ha PE fb two HW, T8: Oxyfluorfen 0.3 kg ai/ha PE fb mulch 10 t/ha fb one HW, T9: Hand Weeding (Mulch fb two HW) and T10: Weedy check (Un-weeded). The observations were recorded on weed flora of experimental plot, weed density (No/m2), weed dry matter (g/m2) and weed control efficiency (%) at 45 DAP, 75 DAP and at harvest; and on yield per plant (g), per plot (kg), rhizome length (cm), rhizome breadth (cm), number of primary rhizomes, plant height (cm), plant girth (cm), number of tillers per plant, number of leaves per plant, leaf length (cm), leaf width (cm), leaf area index, specific gravity (g/cc), dry rhizome recovery (%), essential oil (%), oleoresin content (%) and total curcuminoid content (%). Analysis of variance showed significant differences for all of the characters studied except specific gravity, dry rhizome recovery (%) and oleoresin content (%). It was concluded that in turmeric cv Palam Lalima integrated weed management with application of pre-emergence weedicide Metribuzin (0.7 kg ai/ha) followed by mulch (10 t/ha) followed by one hand weeding (75 DAP) gave maximum weed control efficiency (95.92%) and thereby produced better quality fresh rhizome yield of 251.42 q/ha, with net returns of Rs 5,18,480 and B : C ratio of 2.20.

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