University of Khartoum

Agronomic Effectiveness of Phosphate Solubilizing Bacteria (PSB) as Growth Promoters of Maize (Zea mays L.) under Application of Compost Amendments

Agronomic Effectiveness of Phosphate Solubilizing Bacteria (PSB) as Growth Promoters of Maize (Zea mays L.) under Application of Compost Amendments

Show full item record

Title: Agronomic Effectiveness of Phosphate Solubilizing Bacteria (PSB) as Growth Promoters of Maize (Zea mays L.) under Application of Compost Amendments
Author: Abdalla, Abdalhadi Mohammed Ali
Abstract: A pot experiment was conducted in the Experimental Farm of the Faculty of Agriculture, University of Khartoum at Shambat during the winter season of 2014/2015, to study the impacts of compost and phosphate solubilizing bacteria (PSB) and their combination on the growth performance of maize (Zea mays) “line KMH02” under Shambat soil conditions. The experiment was arranged in a completely randomized design (CRD) with five replications. The treatments consisted of three PSB isolates (Bacillus,Paenibacillus, and Rhizobium), two types of compost (Shambat and Elkhaseeb), as well as negative (no supply) and positive (50 Kg P2O5 ha1) controls. Triple superphosphate (48% P2O5) was the source of phosphorus in the experiment. The growth attributes investigated included plant height, number of leaves per plant, leaf area (LA), leaf area index (LAI), stem diameter, fresh and dry matter accumulations for the shoot and root fractions. Plant protein and mineral nutrients (N, P, K, Ca, Mg) and rhizospheric soil chemical analyses (pH, ECe, mineral nutrient contents) were performed at the end of the experiment (85 days after sowing). At eight measured sampling events, the statistics revealed no significant differences between Shambat and Elkhaseeb (without PSB) for the examined growth attributes. However, the application of Shambat or Elkhaseeb recorded significant differences over untreated control. When applied alone, there was no significant difference among the three PSB isolates. The application of PSB in combination with compost resulted in significant differences compared with their respective controls. The addition of organic amendments also significantly affected several soil chemical properties (pH, K, N and P). With or without compost, PSB isolates were able to increase the N, Mg, and protein contents in the leaves of plants. However, no significant differences occurred among treatments. The positive control revealed no significant response for all studied parameters. It is therefore, recommended that the addition of compost alone or accompanied with PSB can improve the soil properties and enhance maize growth when alkaline soils are used.
Description: 149 Pages
URI: http://khartoumspace.uofk.edu/123456789/25343


Files in this item

Files Size Format View

This item appears in the following Collection(s)

Show full item record

Share

Search DSpace


Browse

My Account