Research Article
Compost and Crude Humic Substances Produced from Selected Wastes and Their Effects on Zea mays L. Nutrient Uptake and Growth
Table 6
pH and major cation contents (mg kg−1) of crude fulvic acids from different composts.
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Different alphabets within a row indicate significant difference between means using Tukey’s test at . ( ) values in parenthesis represent standard error of the mean. |