Comparison between the Chemical characterization of Lignit Humic acid and Humic acid extracted from Nile water hyacinth compost and its effect with Nitrogen on Maize Grain Yield and Quality
Abstract: Nile water hyacinth compost can be considered a rich source for humic acids which can be used for crop production as lignite humic acid. The studied Humic acid contains more acidity, total OC, H, and N. The two acids stimulate growth in maize plant. The FTIR spectra of both acids show completely different fingerprint region. However they show three main peaks at the region 3424-3367 cm-1, 1627-1654 cm-1, and at1033 cm-1. which could be attributed to OH and possibly NH stretching vibration, aromatic C=C, C=O in COO-2 and/or C=O of conjugated ketones or to C=N amide I and orthosubstitution, C-C-O of primary alcohol respectively. The Uv-Vs spectra of the studied humic acids give two clear bands at 208 nm and 280 nm which are attributed to ? ? ?* and n??* of CO groups. Humic acid from Nile water compost (250ppm/L) was used to compare its efficiency with nitrogen at the (45, 90 and 135 kg/Fed.). Nitrogen rates at the above mentioned effectively improved maize grains (TWC 351) yield and nutrients. Increasing nitrogen rate up to 135 kg/Fed improved maize growth and caused earlier teaseling and silking, at the same time, increased grain yield about 217%. Grain yield increased about 313 and 350% relative to control when humic acid added with 90 and 135 kg N/Fed, respectively. High protein and fat content of the grain were achieved by adding humic acid with nitrogen up to 90 kg/Fed (9.01%) minerals content i.e. Fe, Zn and Mn increased by adding humic acid. Treatment (135 kg N/Fed + humic acid) showed zero content in heavy metals i.e. Cd and Pb.
Publication year 2012
Organization Name
serial title J. Biol. Chem. Environ. Sci
Author(s) from ARC
External authors (outside ARC)
    مجدة بدر كلية العلوم – جامعة الأزهر
    هدى خيرى معهد بحوث تكنولوجيا الاغذيه
Publication Type Journal
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