Appendix 1: Some physico-chemical properties of soil.

Properties	Units	Amount
Sand	%	8.00
Silt	%	18.00
Clay	%	74.00
Texture class	-	Clay
pH (1:2.5 soil: water)	-	5.29
E. C. (1:2.5 soil: water)	ds/m	0.07
Organic matter	%	3.83
Organic carbon	%	2.22
Total nitrogen	%	0.19
Available phosphorus	ppm	3.41