Author(s):

SS Tomar, Ashok Kumar, RK Naresh, YP Singh, Ajay Singh and Rajendra Singh

Abstract: The field experiment was conducted during the <em>rabi</em> season of 2014–15 and 2015–16 at the CRC, Chirodi, Sardar Vallabhbhai Patel University of Agriculture and Technology, Modipuram Meerut U.P. to study the “Effect of fertility levels and herbicides combination on weed dynamics and productivity of wheat (<em>Triticum aestivum</em> L.)”. The soil of experimental field was sandy loam in texture, low in organic carbon and available nitrogen, medium in available phosphorus and available potassium with near to neutral in reaction. There were two factor, 3 fertility levels (75, 100 and 125% recommended dose of NPK ) and 6 weed control practices. The treatments were replicated three times in a split plot design. Among the herbicide sulfosulfuron + metsulfuron @ 25 + 4 g a. i ha⁻¹ was controlled the narrow and broad leaves weeds very effectively and recorded higher value of weed control efficiency and yield of wheat followed by Clodinofop + 2,4-D @ 60+500 g a.i. ha⁻¹. Thus, it may be concluded that application of 125% recommended dose of NPK ha⁻¹ with sulfosulfuron + metsulfuron @ 25 + 4 g a.i ha⁻¹ as proved most superior than other treatment with respect to higher yield, weed control efficiency and lower total density and dry matter accumulation of weed.

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