Effect of zinc levels and incubation with cow dung on yield and zinc uptake by soybean (Glycine max)–wheat (Triticum aestivum) sequence in Vertisols Uike Y.1, Research Scholar, Kulhare P.S.1, Principal Scientist, Sharma G.D.1, Technical Assistant, Thakur R.K.1, Research Associate, Yadav B.2 Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh-482 004 1Dept. of Soil Science & Agril. Chemistry, JNKVV, Jabalpur 2Senior Research Fellow, Division of Agricultural Physics, IARI, New Delhi Online published on 25 September, 2013. Abstract A field experiment was conducted in Vertisols of Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur during 2007–2008 to study the direct effect of Zn levels (0, 1.25, 2.5 and 5 kg/ha) alone and the Zn levels incubated with 200 kg cow dung/ha on yield of soybean {Glycine max (L.) Merrill} ‘JS93 05’ and the residual effect on wheat {Triticum aestivum (L.) emend. Fiori and Paol} ‘GW 273’. Application of 5 kg Zn alone and 5 kg Zn + 200 kg cow dung in soybean significantly increased the Zn uptake (181.9 g/ha), grain (1.71 t/ha) and stover (2.36 t/ha) yields over control. Zn uptake and wheat grain yield significantly increased with the residual effect of 2.5 and 5 kg Zn over control. The findings further, revealed that the 5 kg Zn alone and incubated with cowdung was found beneficial for yield, uptake and Zn availability under soybean–wheat cropping system in Vertisols. Top Keywords Cow dung, Direct and residual effect of Zn, Soybean, Wheat, Zn incubation. Top |