Improving Phosphorus Availability in an Acid Soil Using Organic Amendments Produced from Agroindustrial Wastes

Table 5

Mean square values of analysis of variance (ANOVA) to evaluate the effects of treatments and time on the soil P fractions.

Source of variations	Degree of freedom	Mean square
		Total P	Available P	Al-P	Fe-P	Redundant soluble-P	Ca-P	Total organic P
Treatments	4	11312939.81*	13753397.87*	500115.64*	104348.54*	28800.00*	144318.64*	3686913.29*
Time	2	843661.83*	555927.70*	74138.99*	50139.27*	9790.33*	55006.27*	55006.27*
Treatments * time	8	145199.71*	468613.19*	78580.74*	7944.11*	2171.50*	9244.67*	9244.67*
Error	30

Note: ∗indicates significant at 𝑃≤0.05.