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Eichhornia crassipes is an aquatic plant present in bodies of water with excess nutrients, which favors its growth and causes negative environmental and social impacts, a situation that promotes the search for alternatives for its use. The objective was to evaluate the physical and chemical properties of E. crassipes as a substrate for germination in vegetables and in the form of bocashi for radish development. As a germinative substrate, dry and ground E. crassipes was mixed in four different proportions with compost and agrolite, considering a control treatment of 100 % E. crassipes. Under a completely randomized design, seeds of Solanum lycopersicum, Cucurbita pepo and Cucumis sativus were germinated. In another trial, a bochashi was carried out with fresh E. crassipes, which was applied at doses of 0 %, 15 %, 30 % and 45 % in Raphanus sativus. Germination varied in the treatments with E. crassipes from 0-99 %. Amounts of 25 % and 50 % of E. crassipes showed the best physical and chemical characteristics as substrates. Bocashi made with E. crassipes showed advantages in radish bulb quality, indicating a dose of 15 % as recommended for its production. [ABSTRACT FROM AUTHOR]