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Published online 23 May 2006
Published in Soil Sci Soc Am J 70:1140-1144 (2006)
DOI: 10.2136/sssaj2005.0265N
© 2006 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Effect of Pit Floor Material on Compost Quality in Semiarid West Africa

YaYa Bissalaa and William Payneb,*

a ICRISAT-Niamey, (Regional Hub WCA), BP 12404, Niamey, Niger
b Texas A&M Univ., Agric. Research and Extension Service, 2301 Experiment Station Rd., Bushland, TX 79012


Figure 1
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  		Fig. 1. Dry mass, C content, and C loss as a function of initial mass for composts made on three floor materials. Vertical lines represent ±1 standard error. The fitted linear regression equation is C Loss = 2.25 + 1.76 x Mass Loss (r2 = 0.92). Exterior lines represent 95% confidence level for carbon loss.

 

Figure 2
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  		Fig. 2. Nitrogen content and C/N ratio of compost as affected by time of composting and pit floor composition in Niger, West Africa. Vertical lines represent ±1 standard error.

 

Figure 3
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  		Fig. 3. (A) Phosphorus, (B) potassium, and (C) water content of compost as affected by time of composting and pit floor composition. Vertical lines represent ±1 standard error.

 

Figure 4
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  		Fig. 4. Whole plant dry matter, shoot N content, and shoot P content of pearl millet as affected by compost/soil mixture using compost from pits of different floor materials. Vertical lines represent ±1 standard error.

 




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