Advanced Search
MyIDEAS: Login

The effect of soil quality on fertilizer use rates among smallholder farmers in western Kenya

Contents:

Author Info

  • Marenya, Paswel Phiri
  • Barrett, Christopher B.

Abstract

Studies of fertilizer use in sub-Saharan Africa have been dominated by analyses of economic and market factors having to do with infrastructure, institutions, and incentives that prevent or foster increased fertilizer demand, largely ignoring how soil fertility status conditions farmer demand for fertilizer. We apply a switching regression model to data from 260 farm households in western Kenya in order to allow for the possibility of discontinuities in fertilizer demand based on a soil carbon content (SCC) threshold. We find that the usual factors reflecting liquidity and quasi-fixed inputs are important on high-SCC plots but not on those with poorer soils. External inputs become less effective on soils with low SCC, hence the discernible shift in behaviors across soil quality regimes. For many farmers, improved fertilizer market conditions alone may be insufficient to stimulate increased fertilizer use without complementary improvements in the biophysical conditions that affect conditional factor demand.

Download Info

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
File URL: http://purl.umn.edu/51671
Download Restriction: no

Bibliographic Info

Paper provided by International Association of Agricultural Economists in its series 2009 Conference, August 16-22, 2009, Beijing, China with number 51671.

as in new window
Length:
Date of creation: 2009
Date of revision:
Handle: RePEc:ags:iaae09:51671

Contact details of provider:
Email:
Web page: http://www.iaae-agecon.org/
More information through EDIRC

Related research

Keywords: Fertilizer demand; Fertilizer policy; Soil carbon; Soil organic matter; Switching regression; Agricultural and Food Policy; Crop Production/Industries; Q12; Q18; Q24;

Find related papers by JEL classification:

References

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
as in new window
  1. Vakis, Renos & Sadoulet, Elisabeth & de Janvry, Alain, 2003. "Measuring transactions costs from observed behavior : market choices in Peru," CUDARE Working Paper Series 962, University of California at Berkeley, Department of Agricultural and Resource Economics and Policy.
  2. Moser, Christine M. & Barrett, Christopher B., 2003. "The Complex Dynamics Of Smallholder Technology Adoption: The Case Of Sri In Madagascar," Working Papers 14735, Cornell University, Department of Applied Economics and Management.
  3. Barrett, Christopher B., 2008. "Smallholder market participation: Concepts and evidence from eastern and southern Africa," Food Policy, Elsevier, vol. 33(4), pages 299-317, August.
  4. Bruce E. Hansen, 1996. "Sample Splitting and Threshold Estimation," Boston College Working Papers in Economics 319., Boston College Department of Economics, revised 12 May 1998.
  5. Hotchkiss, Julie L, 1991. "The Definition of Part-Time Employment: A Switching Regression Model with Unknown Sample Selection," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 32(4), pages 899-917, November.
  6. Marc F. Bellemare & Christopher B. Barrett, 2006. "An Ordered Tobit Model of Market Participation: Evidence from Kenya and Ethiopia," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 88(2), pages 324-337.
Full references (including those not matched with items on IDEAS)

Citations

Lists

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

Statistics

Access and download statistics

Corrections

When requesting a correction, please mention this item's handle: RePEc:ags:iaae09:51671. 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: (AgEcon Search).

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 references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link 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 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.