Investigation the effects of manure and seed inoculation with Azospirillum manure on yield and yield components of Cumin (Cuminum cyminum L)
Nowadays, to have a sustainable agricultural system, the application of inputs that improve the aspects of ecological systems and reduce environmental hazards are necessary.
In order to evaluate the effect of application of manure and growth promoting rhizobacteria on Cumin on yield and yield component, a factorial experiment conducted on the basis of completely randomized block design with three replicates at Payam Noor University of Fereydoonshar in the spring of 2020. Experimental treatments were seed inoculation with biofertilizer at two levels (seed inoculation and no inoculation) and nitrogen manure fertilizer at four levels (0, 10, 20 and 30 ton/ha-1).
With increasing manure consumption from 0 to 30 ton/ha-1 of the recommended, significantly increased plant height, number of branches per plant, number of umbellate per umbel, number of seed per umbel, 1000-seed weight, biological yield and seed yield up to respectively. Also, in comparison with non-inoculation treatment, inoculation treatment increased number of branches per plant, number of umbellate per umbel and 1000- seed weight up to respectively. Mean comparisons for interaction of manure × biofertilizer indicated that the treatment of seed inoculation with consumption of 40 kg/ha-1 recommended manure, produced the highest seed yield.
Yield components increased with increasing levels of manure and the presence of bacteria, but it seems that in soil that is in good condition in terms of nutrients (application of manure), there is not much ground for beneficial effects of bacteria.
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