Phosphorus Response Effects on Macro-and Micronutrient Removal by Sorghum under Rainfed Cropping on a Vertisol

    Sahrawat, K L and Rego, T J and Rahman, M H and Rag, J K (1998) Phosphorus Response Effects on Macro-and Micronutrient Removal by Sorghum under Rainfed Cropping on a Vertisol. Journal of the Indian Sociely of Soil Science, 46 (1). pp. 58-60. ISSN 0019-638X

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    Abstract

    Amounts of N, P, K, Ca, Mg, Na, Fe, Zn, Mn and Cu absorbed by sorghum (cv CSH 6) grown with four P levels (0, 10, 20 and 40 kg P ha−1) were determined in a field experiment at the ICRISAT Centre, Patancheru (Andhra Pradesh) under rainfed conditions for three consecutive years (1987–89). The soil was a calcareous Vertisol, very low in available P. Fertilizer P increased grain and stalk yields in all the three years. The uptake of macro-and micronutrient elements accordingly increased with the increase in yield. Phosphorus application also increased the nutrient harvest index for macro- and micronutrient elements. Ratio of nutrient concentrations in the grain relative to stalk was widest for P (5: 1) and narrowest for Ca (0.03:1).

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Subjects: Mandate crops > Sorghum
    Others > Soil Science
    Depositing User: Mr Sanat Kumar Behera
    Date Deposited: 30 Nov 2011 14:34
    Last Modified: 01 Feb 2013 05:37
    URI: http://oar.icrisat.org/id/eprint/4581
    Official URL:
    Projects: UNSPECIFIED
    Funders: UNSPECIFIED
    Acknowledgement: UNSPECIFIED
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