Effect of nitrogen and zinc plus copper on sugarcane (Saccharum spp) plant crop in Guneid and Assalaya Sugar Estates, in central Sudan

Salaheldin A. Mukhtar, Adam I. Adam, Abu Elhassan S. Ibrahim, Muawia E. Hamad

Abstract


Sugarcane cultivation started in Sudan in the early 1960s. Since then it has been expanding considerably. Sugarcane is grown mainly in the central clay plain (Vertisols) of Sudan which are characterized by moderate chemical fertility, high contents of smectitic clays, high pH values, low N and organic carbon contents. Nitrogen content of these soils ranges from 0.03 to 0.045% (Idris, 2001). Likewise, these Vertisols are low in available P, Fe, Mn, Zn, and Cu. The diethylene triamine penta acetic acid (DTPA) available Cu and Zn for the 0 – 30 cm soil depth at Guneid and Assalaya locations ranges from 0.34 to 0.48 and 0.17 to 0.23 mg kg-1 soil, respectively (Elhagwa, 2000).


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