Abstract
Legumes inoculation improves the ability of legume to fix N2 and consequently soil fertility for the succeeding crop. Maize yield response to legume inoculation with indigenous rhizobial strain in a legume-maize sequence was investigated in three soil types: Nitosol, Luvisol and Alfisol. The experiment on each soil type was a randomized complete blocked design with rhizobial inoculation treatments: IDC8, R25B+IRj2180A, TRC2, O1a6(c3a) and no inoculation; maize rotation with soybean TGx1448-2E (1448-M), TGx1908-1F (1908-M) and TGx1910-2F (1910-M), cowpea IT89KD-288 (288-M) and IT97K-568-18 (568-M) and continuous maize cropping (M-M). Data were collected and analyzed on the soil characteristics, stover and grain yield and N and P uptake. Legume-maize sequence and rhizobial inoculation significantly (P < .05) increased grain yields of maize in the three soil types. Grain yield of 288-M, 1448-M and 1910-M under Nitosol and Luvisol were significantly higher than those of M-M. Rhizobial inoculation significantly increased maize yield. Rhizobial inoculation resulted in higher grain yield under Alfisol when IDC8- and R25B+IRj2180A- inoculated legume-maize sequence plants were compared with M-M sequence and uninoculated legume-maize sequence plants. Consequently, indigenous rhizobial strain inoculation of legume has the potentials to increase yield of maize in a legume-maize rotation system.
Published Version
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