2024, Vol. 4, Issue 2, Part B
Integrated weed management in horsegram [Macrotyloma uniflorum (L.) Verdc.]
Author(s): Nootan Otti, HP Agrawal, JR Patel, AP Agrawal, NK Chaure, Geet Sharma, Chanchala Rani Patel, Mahendra Kumar Patel, Gendlal and Shakuntala Kaiwart
Abstract: The present investigation entitled “Integrated weed management in horsegram [Macrotyloma uniflorum (L.) Verdc.]” was carried out during post-kharif season 2023 at the Instructional Cum Research Farm, Barrister Thakur Chhedilal College of Agriculture and Research Station, Bilaspur (C.G.). The experiment was laid out in Randomized Block Design with three replications. The treatments consisted of nine weed management practices viz., weedy check (T1), pendimethalin 30 EC @ 1000 ml a.i. ha-1 as pre-emergence (T2), imezathypr 10 SL @ 100 g a.i. ha-1 at 25 DAS (T3), pendimethalin 30 EC @ 1000 ml a.i. ha-1 as pre-emergence + imezathypr 10 SL @ 100 g a.i. ha-1 at 25 DAS (T4), once wheel hoeing at 25 DAS (T5), pendimethalin 30 EC @ 1000 ml a.i. ha-1 as pre-emergence + once wheel hoeing at 25 DAS (T6), hand weeding at 25 DAS (T7), pendimethalin 30 EC @ 1000 ml a.i. ha-1 as pre-emergence + hand weeding at 25 DAS (T8) and weed free (T9). The horsegram variety Chhattisgarh kulthi-3 was grown as test crop on August 28, 2023 and harvesting was done on December 02, 2023. The experiment's findings showed that the following combinations of pendimethalin 30 EC @ 1000 ml a.i. ha-1 as pre-emergence + hand weeding at 25 DAS (T8) and pendimethalin 30 EC @ 1000 ml a.i. ha-1 as pre-emergence + once wheel hoeing at 25 DAS (T6), produced the highest growth characters viz., plant population, plant height, number of branches, dry matter accumulation, crop growth rate, relative growth rate, seed yield, stover yield and harvest index. Below the weedy check (T1), the minimum values of the aforementioned characters were noted. Throughout the crop growing period, Cyperus rotundus, Parthenium hysterophorus, Trianthema spp., Phyllanthus spp., Cynodon dactylon and a few other weeds were observed as prevalent in the experimental field. The treatments that reduced weed density, weed dry matter production, weed growth rate and gave the highest weed control efficiency were pendimethalin 30 EC @ 1000 ml a.i. ha-1 as pre-emergence + hand weeding at 25 DAS (T8), pendimethalin 30 EC @ 1000 ml a.i. ha-1 as pre-emergence + once wheel hoeing at 25 DAS (T6) and pendimethalin 30 EC @ 1000 ml a.i. ha-1 as pre-emergence + imezathypr 10 SL @ 100 g a.i. ha-1 at 25 DAS (T4). On the other hand, under pendimethalin 30 EC @ 1000 ml a.i. ha-1 as pre-emergence + manual weeding at 25 DAS (T8), the weed index was recorded as minimum. Additionally, an economic analysis showed that the treatment weed free (T9) produced the highest net return (61155.66 ₹ ha-1) and gross return (97244.44 ₹ ha-1). Pendimethalin 30 EC @ 1000 ml a.i. ha-1 as pre-emergence + hand weeding at 25 DAS (T8) and pendimethalin 30 EC @ 1000 ml a.i. ha-1 as pre-emergence + once wheel hoeing at 25 DAS (T6) were the next two treatments. Pendimethalin 30 EC @ 1000 ml a.i. ha-1 as pre-emergence + hand weeding at 25 DAS (T8) produced the highest B:C ratio, whereas pendimethalin 30 EC @ 1000 ml a.i. ha-1 as pre-emergence + once wheel hoeing at 25 DAS (T6) produced a comparable result.
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How to cite this article:
Nootan Otti, HP Agrawal, JR Patel, AP Agrawal, NK Chaure, Geet Sharma, Chanchala Rani Patel, Mahendra Kumar Patel, Gendlal, Shakuntala Kaiwart. Integrated weed management in horsegram [Macrotyloma uniflorum (L.) Verdc.]. South Asian J Agric Sci 2024;4(2):130-136.