IDEAS home Printed from https://ideas.repec.org/a/eee/agisys/v104y2011i5p411-418.html
   My bibliography  Save this article

An agronomic, economic and behavioral analysis of N application to cotton and wheat in post-Soviet Uzbekistan

Author

Listed:
  • Kienzler, Kirsten M.
  • Djanibekov, Nodir
  • Lamers, John P.A.

Abstract

Cotton and winter wheat play a vital role in Uzbek agriculture: the first crop is a vital component of the national export revenues, while the latter is key in achieving independence from grain imports. Due to these strategic roles in the national economy, both crops are part of the state procurement system and, hence, are subject to strict regulations imposed to ensure budget revenues and self-sufficiency. However, many factors cause the divergence of crop yields from their technically maximum levels. We analyzed those factors, which hamper achieving the optimum response to fertilizer applications. In a stepwise procedure, we (i) reviewed the technical and financial optimum yield responses of cotton and winter wheat production to fertilizer applications and (ii) analyzed the changes of fertilizer-to-product price ratios to shed light on the agronomic and economic performance of cotton and wheat in the post-Soviet agricultural system of Uzbekistan. The analysis combined data from long-term, historical yield and fertilizer responses, agronomic N-fertilizer response experiments, and socio-economic farm surveys. Quadratic yield-response functions were used to derive economic and technical optimum rates of N-fertilizer applications. Based on the parameterized function and fertilizer-to-product price ratios observed for 1996-2003, we analyzed the difference between recommended fertilization and economic optimum application rates. Results showed that under the state procurement system, Uzbek farmers may not necessarily tend to maximize the profits from their cotton and wheat production. The level of subsidies and the differential crop support by the state induce farmers to follow the official fertilizer recommendations to ensure that they fulfill the production targets even if it implies higher production costs. The present gaps between the officially recorded yields and those technically achievable given the agro-ecological conditions in Uzbekistan cannot be narrowed by only improving N-fertilizer management. It would require additional efforts to improve cotton and wheat yields.

Suggested Citation

  • Kienzler, Kirsten M. & Djanibekov, Nodir & Lamers, John P.A., 2011. "An agronomic, economic and behavioral analysis of N application to cotton and wheat in post-Soviet Uzbekistan," Agricultural Systems, Elsevier, vol. 104(5), pages 411-418, June.
  • Handle: RePEc:eee:agisys:v:104:y:2011:i:5:p:411-418
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0308-521X(11)00016-3
    Download Restriction: Full text for ScienceDirect subscribers only

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Pomfret, Richard, 2000. "Agrarian Reform in Uzbekistan: Why Has the Chinese Model Failed to Deliver?," Economic Development and Cultural Change, University of Chicago Press, vol. 48(2), pages 269-284, January.
    2. Nodir DJANIBEKOV, 2008. "A Micro-Economic Analysis of Farm Restructuring in Khorezm Region, Uzbekistan," Economics and Applied Informatics, "Dunarea de Jos" University of Galati, Faculty of Economics and Business Administration, issue 1, pages 19-24.
    3. Byerlee, Derek & Ramzan Akhtar, M. & Hobbs, Peter R., 1987. "Reconciling conflicts in sequential cropping patterns through plant breeding: The example of cotton and wheat in Pakistan's Punjab," Agricultural Systems, Elsevier, vol. 24(4), pages 291-304.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Mori-Clement, Yadira & Bhaduri, Anik & Djanibekov, Nodir, 2014. "Food price fluctuations in Uzbekistan: Evidences from local markets in 2002-2010," 2014 International Congress, August 26-29, 2014, Ljubljana, Slovenia 183091, European Association of Agricultural Economists.
    2. Utkur Djanibekov & Asia Khamzina, 2016. "Stochastic Economic Assessment of Afforestation on Marginal Land in Irrigated Farming System," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 63(1), pages 95-117, January.
    3. Khasanov, Shavkat & Djanibekov, Nodir, 2015. "Improving Cotton Production and Crop Diversification in Uzbekistan: Tradable Cotton Production Targets," 2015 Conference, August 9-14, 2015, Milan, Italy 211841, International Association of Agricultural Economists.
    4. Aziz Karimov, 2014. "Factors affecting efficiency of cotton producers in rural Khorezm, Uzbekistan: Re-examining the role of knowledge indicators in technical efficiency improvement," Agricultural and Food Economics, Springer;Italian Society of Agricultural Economics (SIDEA), vol. 2(1), pages 1-16, December.
    5. Djanibekov, Nodir & Sommer, Rolf & Djanibekov, Utkur, 2013. "Evaluation of effects of cotton policy changes on land and water use in Uzbekistan: Application of a bio-economic farm model at the level of a water users association," Agricultural Systems, Elsevier, vol. 118(C), pages 1-13.
    6. Djanibekov, Nodir & Djanibekov, Utkur & Sommer, Rolf & Petrick, Martin, 2015. "Cooperative agricultural production to exploit individual heterogeneity under a delivery target: The case of cotton in Uzbekistan," Agricultural Systems, Elsevier, vol. 141(C), pages 1-13.
    7. Bhaduri, Anik & Djanibekov, Nodir, 2015. "Adoption of Water-Efficient Technology: Role of Water Price Flexibility, Tenure Uncerntainty and Production Targets in Uzbekistan," 2015 Conference, August 9-14, 2015, Milan, Italy 211336, International Association of Agricultural Economists.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:agisys:v:104:y:2011:i:5:p:411-418. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Dana Niculescu). General contact details of provider: http://www.elsevier.com/locate/agsy .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.