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The intercropping maize - common bean increases the rhizobial efficiency and phosphorus uptake in calcareous phosphorus deficient soils
World Congress on Public Health and Nutrition
Latati M, Bargaz A, Tellah S, Benlahrech S, Tellah S Ounane G, Kaci ghiles, Belarbi B and Ounane S M
Ecole Nationale Sup�?©rieure Agronomique, Algeria
Posters & Accepted Abstracts: J Community Med Health Educ
Abstract
This study aimed to assess the beneficial effect of the legume-cereal intercropping system in enhancing soil phosphorus (P) availability for plant growth and grain yield in calcareous P-deficient soils of northern Algeria. To address this question, field experiments, using common bean (Phaseolus vulgaris L. cv. El Djadida) and maize (Zea mays L. cv. Filou), either in pure stand or intercropping, were compared in two experimental sites; S1 (P-deficient) and S2 (P-sufficient) during two growing seasons (2011 and 2012).Growth, nodulation and grain yield were tested and correlated with the P availability in the rhizosphere soil. The results showed that P availability increased in the rhizosphere of both species, especially within the intercropping system under S1 P-deficient conditions. This increase was associated with high efficiency in use of the rhizobial symbiosis (EURS), high rate of N2fixation and plant growth. Moreover, the rhizosphere P-availability and nodule biomass were positively correlated for intercropped common bean grown in S1 during 2011 and 2012. The increase in P availability moderately improved biomass and grain yield when both species were intercropped, P uptake was enhanced intercropped maize only. It is concluded that,common bean-maize intercropping showed a positive interaction by which common bean increased P uptake, plant biomass and grain yield for intercropped maize by improving the efficiency in use of the rhizobial symbiosis in calcareous P-deficient soils.Biography
Email: m.latati@yahoo.com
