Comparative study of weed control approaches on wheat performance and nutrient utilization

The present investigation aimed to find out the “Comparative Study of Weed Control Approaches on Wheat Performance and Nutrient Utilization” was carried out at Agronomy Research Farm, Faculty of Agriculture and Veterinary Science, Mewar University, Gangrar, Chittorgarh, Rajasthan. Geographically Chittorgarh. The experiment was laid out in Randomized Block Design. Replicated thrice with 13 treatment combinations, comprising like T1 Weedy check, T2 Hand weeding at 30 – 35 DAS, T3 2, 4-D ester @ 0.5 kg/ha at 30 – 35 DAS, T4 Sulfosulfuron @ 25 gm a.i./ha at 30 – 35 DAS, T5 Metsulfuran Methyl @ 4 g a.i. / ha at 30 – 35 DAS, T6 Sulfosulfuron 75% +Metsulfuran methyl 5% WG @ 32 g a.i. /ha at 30 – 35 DAS, T7 Piroxofop-Propargyl 15% WP 60 g a.i. /ha at 30 – 35 DAS, T8 Clodinafop propargyl 15% +Metsulfuran methyl 1% @ 64 g a.i. /ha at 30 – 35 DAS, T10 Carfentrazone Ethyl 40% DF @ 20 g a.i./ha at 30 – 35 DAS, T11 Pendimethalin pre emergence and T13 Weed free. Wheat variety Raj 3077 used as test crop was selected for the experiment. Significant observed on weed check, growth and yield due to different weedicide treatment in wheat parameter viz., reduce the weed dry matter weedicides applied all at 30-35 DAS were the most superior and equally effective treatments, hand weeding was the most superior treatment that recorded considerably lower weed index of 4.53 percent. Highest weed control efficiency (89.43 percent) was recorded at harvest stage with hand weeding and sulfosulfuran @ 25 g a.i. /ha (89.42 percent). weed free attained the maximum plant height of 37.96, 79.33 and 90.33 cm at 60, 90 DAS and at harvest stage, Maximum Grain yield (48.69 q ha-1) Straw yield (58.40 kg ha-1), Biological yield (107.09 kg ha-1), Nitrogen content in gain and straw (1.810 and 0.312%) and Phosphorus content in grain and straw (0.450 and 0.138%) were receded in T13 Weed free.