Use of Eichhornia crassipes dry matter as organic substrate for germination and initial growth of corn
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The objective was to evaluate the potential use of the dry matter of the aquatic macrophyte (<em>Eichhornia crassipes</em>) as a substrate for germination and initial growth of corn (<em>Zea mays</em> L.). The experimental design was completely randomized with four treatments and ve replicates. The treatments consisted of testing substrates with different levels of <em>E. crassipes</em> dry matter and agricultural soil mixtures, with 100 % <em>E. crassipes</em> dry matter, 50% <em>E. crassipes</em> dry matter and 50 % agricultural soil, 25 % E. crassipes dry matter and 75% agricultural soil, and 100% commercial agricultural substrate. Average stem height and diameter, and shoot and root fresh and dry mass were compared by one-way ANOVA and Tukey's test (p < 0.05). The results showed that <em>E. crassipes</em> dry matter could be used as a substrate for the germination and initial growth of corn, although the commercial agriculture substrate alone has resulted in higher initial corn growth.