Response of sorghum genotypes to levels of nitrogens in vertisols under dryland condition
2005
Bhanavase, D.B. | Tamboli, B.D. | Kale, K.D. | More, N.B. | Pharande, A.L., Zonal Agricultural Research Station, Solapur (India))
The application of nitrogen to sorghum genotypes (M.35-1, Yashoda and CSH-15R) significantly increased the grain and stover yields, total N uptake and soil available N content at harvest over no application of nitrogen. Application of 50 kg N ha-1 recorded significantly higher grain and stover yields and total N uptake; however, it was on par with 75 kg N ha-1. Application of 75 kg N ha-1 recorded significantly higher soil available N at harvest. Among sorghum genotypes, M.35-1 recorded significantly higher grain yield and total N uptake, however, Yashoda (SPV-1359) recorded significantly higher stover yield over M.35-1 and CSH- 15R. The NUE and MUE were increased with an increase in N levels upto 50 kg N ha-1 and thereafter reduced at higher levels of nitrogen (75 kg N ha-1). Among sorghum genotypes, M.35-1 recorded higher NUE and MUE, followed by CSH-15R and Yashoda.
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