Effect of Different Weed Control Measures on Performance of Chickpea under Irrigated Condition

Abstract

The field experiment was conducted during Rabi season of the year 2011-12 at Agronomy Research Farm of N.D. University of Agriculture and Technology, Faizabad, Uttar Pradesh to find out most suitable weed management practice in chickpea. The experiment was laid out in randomized block design with three replications and fourteen weed control treatments, viz. pendimethalin 1000g ha-1 [Pre-emergence (PE)], pendimethalin 1000 g ha-1 (PE) followed by (fb) quizalofop-ethyl 60 g ha-1 [Post-emergence (PoE)], pendimethalin 1000g ha-1 (PE) fb clodinafop 60 g ha-1 (PoE), pendimethalin (PE) 750 g ha-1fb quizalofop-ethyl 60g + oxyfluorfen 200g ha-1 (PoE), oxyfluorfen 200g ha-1 (PE), oxyfluorfen 200g ha-1 (PE) fb quizalofop-ethyl 60g ha-1 (PoE), oxyfluorfen 200g ha-1 (PE) fb clodinafop 60g ha-1 (PoE), oxyfluorfen 200g + quizalofop-ethyl 60g/ha (PoE), oxyfluorfen 200g + clodinafop 60g ha-1 (PoE), imazethapyr 75g ha-1 (PoE), pendimethalin 1000g (PE) fb imazethapyr 75g ha-1 (PoE), pendimethalin 1000g ha-1 (PE) fb imazethapyr 75g + quizalofop-ethyl 60g ha-1 (PoE), weed free and weedy check. Results indicated that weed control treatments give significantly positive impact on number of nodules, nutrient (N, P, K) uptake, yields and economics of chickpea over weedy check at each growth stage. Maximum yield (1.72 t ha-1) and nutrient uptake (N- 63.60, P- 9.09 and K- 74.39kg/ha) by chickpea were recorded in weed free treatment but maximum nitrogen, phosphorous and potassium (23.22, 2.68 and 50.42kg/ha) uptake by weed were obtained in weedy check treatment and lowest in weed free treatment. So, adoption of suitable weed management measures can enhance the performance of crop and provide more income to farmers far achieving the goal of doubling farmer income by 2022.