Integrated weed management in pigeonpea [Cajanus cajan (L.) Millsp] Pagar PA*, Patil DK, Bantewad SD, Jahagirdar JE, Gosavi SV Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, Maharashtra *E-mail: prashantapagar76@rediffmail.com
Online published on 23 August, 2019. Abstract India has a key place in global production and contributes about 25% to the total pulse basket. Pigeonpea is the second important pulse crop in India. In pigeonpea, weeds caused 21–97% yield loss. High cost of wages and various limitations in cultural practices and mechanical practices necessitates to study integrated weed management approach in pigeonpea. Therefore, a field experiment on integrated weed management in pigeonpea was conducted at Agriculture Research Station, Badnapur Dist-Jalna (Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, Maharashtra) during 2012–13, 2013–14 and 2014–15 with an objective to find out the effective weed management practice in pigeonpea cultivation. The experiment was laid out in randomized block design comparing eight treatments viz., T1 pendimethalin @ 0.75 kg a.i/ha at 1–2 DAS + 1 hand weeding at 50 DAS, T2-imazethapyr @100 g a.i./ha at 20–25 DAS + 1 hand weeding at 50 DAS, T3-quizalofop ethyl @ 100 g a.i./ha at 20–25 DAS + 1 hand weeding at 50 DAS, T4 pendimethalin @ 0.75 kg a.i/ha at 1–2 DAS + imazethapyr @ 100 g a.i./ha at 20–25 DAS, T5-pendimethalin @ 0.75 kg a.i/ha at 1–2 DAS + imazethapyr @ 100 g i.e./ha at 20–25 DAS + 1 hand weeding at 50 DAS, T6-pendimethalin @ 0.75 kg a.i/ha at 1–2 DAS + quizalofop ethyl @ 100 g a.i/ha at 2025 DAS, T7-pendimethalin @ 0.75 kg a.i/ha at 1–2 DAS + quizalofop ethyl @ 100 g a.i./ha at 20–25 DAS + 1 hand weeding at on 50 DAS, T8-weedy check (Unwedded control) and T9-weed free plot (weeding at an interval of 20–25 DAS). Three years pooled data revealed that pre-emergence application of pendimethalin @ 0.75 kg a.i./ha−1 at 1–2 DAS + imazethapyr @ 100 g a.i./ha at 20–25 DAS + 1 hand weeding at 50 DAS was found effective weed management practice. The application of pendimethalin @ 0.75 kg a.i./ha−1 at 1–2 DAS + imazethapyr@ 100 g a.i./ha at 20–25 DAS + 1 hand weeding at 50 DAS was also economical. Top Keywords Hand weeding, Pigeonpea, Pre-emergence, Seed yield, Weed. Top |