ISSN:
1432-0789
Keywords:
Maize seed inoculation
;
Azotobacter spp.
;
N and P fertilizer
;
N2 fixation
;
Growth hormones
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Geosciences
,
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Inoculated seeds of maize (Zea mays) with 11 Azotobacter strains, sown in the fields receiving no fertilizer and fertilizers (N and P at the rate of 125 and 40 kg ha−1 respectively) increased the grain yield by 19.63% and 15.89% respectively over the corresponding control. The effect was greater in unfertilized than in fertilized soil. The increase in yield due to fertilizers was 21.2% without inoculation and 37.09% with inoculation. The correlations between total yield, and N, P and K uptake were highly significant and comparable among themselves. This indicated that increase in yield due to inoculation was not due to N2 fixation but that some other mechanisms like production of growth hormones by this bacterium may be responsible.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00280354
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