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Food Chemistry 2018 Journal of Food, Nutrition and Population Health
ISSN: 2577-0586 Page 63
July 23-24, 2018
Rome, Italy
3rd Edition of International Conference on
Agriculture &
Food Chemistry
Soil degradation resulting from salinity and sodicity is a major
environmental constraint with severe negative effects on
soil fertility and agricultural productivity in arid and semiarid
regions of the world. Saline sodic soil are degraded due to their
simultaneous effect of salinity and sodicity, which deteriorates
soil physical structure by clay swelling and dispersion due to
high concentrations of Na+ in the soil solution or at the exchange
phase, forming dispersed. In addition to physicochemical effects,
biological properties such as themicrobial respiration and biomass
are deteriorated. In our experiment, we evaluated the effects of
individual and synergic of biochar, humic substances and gypsum
application on chemical and biological properties of saline sodic
soil and growth of two quinoa genotypes. Treatments included
biochar (B) 22 t ha-1, humic substances (HS) 5 kg ha-1, gypsum (G)
47.7 t ha-1. Eight treatments T0 = control, T1 = B, T2 = G, T3 = HS, T4
= B+G, T5 = B+HS, T6 = HS+ G, T7 = B+HS+G were established. The
combined treatment B+HS+G increased root biomass in AZ - 51
and AZ - 103 quinoa genotypes 206 and 176% respectively, while
plants grown on amendment soils increase significant stomata
conductance, chlorophyll index and seeds yield. Furthermore,
electrical conductivity (ECe), sodium adsorption ratio (SAR) and
exchangeable sodium percentage (ESP) decreased significantly
in all treated soils, the ESP in gypsum treatment (decreased 11
folds) and B+G, B+HS, B+HS+G (decreased 9–15 folds) respect to
control. Likewise, soil microbial biomass increased 112-322% on
B+HS+G treatment. Combined amendment improved chemical and
biological properties of soil, reducing the negative effects of saline
sodic soil on the performance of quinoa plants.
Biography
Mauricio Schoebitz Cid completed his PhD from Nantes University, France
and Postdoctoral studies from Consejo Superior de Investigaciones Científi-
cas, Murcia, España–(CEBAS–CSIC). He worked as a Professor of Soil Sci-
ence and Natural Resources at Concepción University. He has published more
than 15 papers, book chapters and patents.
Response of quinoa plants to processes of soil reclamation in
saline-sodic, using combined amendments
Mauricio Schoebitz Cid and Alcivar M F
Universidad de Concepción, Chile
Mauricio Schoebitz Cid et al., J Food Nutr Popul Health 2018, Volume 2
DOI: 10.21767/2577-0586-C2-006