Effect of planting techniques and weed control treatments on nutrient removal by wheat (Triticum aestivum L.)

Field study conducted at experimental farm of the Punjab Agricultural University, Ludhiana (India) during rabi seasons of 2004–05 and 2005–06 revealed that nutrient uptake as well as grain and straw yield of wheat was significantly increased with zero till sowing in standing stubbles, zero till sowing after partial burning and bed planting techniques as compared to conventional tillage and zero tillage techniques. Post-emergence application of clodinafop 60 g ha⁻¹ followed by 2,4-D 0.5 kg ha⁻¹, sulfosulfuron 25 g ha⁻¹ and mesosulfuron + iodosulfuron 12.0 g ha⁻¹ significantly increased the nutrient uptake by grain and straw and hence significantly increased the grain and straw yield of wheat than clodinafop 60 g ha⁻¹ alone and control (unweeded), whereas, clodinafop 60 g ha⁻¹ alone also recorded significantly higher grain and straw yield of wheat as well as nutrient uptake as compared to control (unweeded) crop.