Vol. 17 No. 3
Performance of rainfed greengram (Vigna radiata L.) under various sowing dates and weed management practices
Author(s): S. SUBBULAKSHMI
Abstract: The field experiment was conducted during 2015-16 in rabi season at Agricultural Research station, Kovilpatti, Tamil Nadu to study the response of different sowing dates and weed management practices on greengram growth, weed control and yield under rainfed situation. Research trial was conducted in split-plot design and replicated thrice. The treatments were pre monsoon (39th standard week), monsoon (41st standard week) and post monsoon sowing (43rd standard weeks) respectively in main plot with four different weed management practices with different chemicals viz., Pendimethalin, Quizalofop ethyl, Imazethapyr and hand weeding were tried in the sub plot. The results of the experiment revealed that sowing during pre monsoon (D1) registered increased growth and yield parameters and grain yield (308 kg ha-1). Among the weed management practices, application of pre-emergence application of (PE) Pendimethalin @ 0.75 kg a.i. ha-1 fb HW on 20 DAS (W1) recorded significantly lower weed density and weed dry weight which in turn produced increased growth and yield attributes and yield of the crop (291 kg ha-1) which was followed by pre-emergence application of Pendimethalin @ 0.75 kg a.i. ha-1 fb post-emergence (POE) application of Quizalofop ethyl @ 50 g a.i. ha-1 on 20 DAS (W2).
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