Displaying 1 Result

ID Number:    20180454
Program:    ADOPT
Pages:   21
 Download PDF
Title:    Dry Bean Inoculation and Fertilizer Strategies for Solid Seeded Production
The objective of this study is:
1) to demonstrate the efficacy of commercial dry bean inoculant formulations alone or in conjunction with fertilizer nitrogen.

Abstracts for project:  
A study was initiated to evaluate the efficacy of a peat and granular dry bean inoculant, manufactured and retailed in the USA, with and without fertilizer nitrogen (N) additions. An additional aspect of the study was to evaluate the potential of CDC Blackstrap as a suitable variety for dry land, solid seeded production. The trial was conducted under natural rainfed conditions at Scott, Redvers, Yorkton and Indian Head. An additional trial was conducted under irrigation at Outlook to serve as a production reference. Peat formulation inoculant was seed applied at 3.1 gm/kg of seed either by itself, with a dilute molasses as a sticking agent or with a commercially applied polymer coating. The granular inoculant was applied at either 4.8 kg/ha or 4.0 kg/ha depending upon the row spacing used. All trials were seeded to establish a plant population of 35 plants/m 2 in a solid seeded system using 25cm (10") or 30cm (12") row spacing. Nitrogen fertilizer treatments were applied at rates so that total available N (soil N plus fertilizer N) equaled 80 lb N/ac. Inoculation failed to provide a yield advantage over un-inoculated dry bean at 4 of 5 locations. At the 5 th location yields were very low and variable, with inoculant treatment inconsistences. No inoculant response was obtained when data were combined across locations. However, all trial locations obtained significantly higher yields when fertilizer N was applied. The un-inoculated treatment at the irrigated site was high yielding compared to dry land sites, this is partly attributed to high levels of indigenous rhizobia populations from numerous preceding dry bean productions. In general, the observed dry land production of CDC Blackstrap was encouraging. Fertilized treatments resulted in an average of 690 kg/ha (614 lb/ac) greater seed yield than unfertilized treatments under dry land conditions. This study was viewed during field events at all five trial locations, has or will appear in videos created by ECRF & ICDC, and been presented at extension events. Total exposure to producer and agronomists is estimated to be > than 600 in number.