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Response of common bean (Phaseolus vulgaris L.) to nitrogen, phosphorus and rhizobia inoculation across variable soils in Zimbabwe

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Title Response of common bean (Phaseolus vulgaris L.) to nitrogen, phosphorus and rhizobia inoculation across variable soils in Zimbabwe
 
Creator Chekanai, V.
Chikowo, Regis
Vanlauwe, Bernard
 
Subject common bean
nitrogen
phosphorus
cropping systems
 
Description Common bean is an important crop with potential to curb malnutrition in poor Sub-Saharan African populations. Yields of common bean (Phaseolus vulgaris L.) are, however poor, limited by low soil phosphorus (P), nitrogen (N) and poor biological N2-fixation. On-farm experiments were carried out to study the effect of N, P and rhizobia inoculation on common bean yield and yield components during the 2014/2015 and 2015/2016 cropping seasons in Eastern Zimbabwe. Experiments were conducted on five farmers’ fields located in two agroecologies; three fields were considered to be degraded with soil organic carbon (SOC) < 4 g kg−1 and available P  7 g kg−1 and available P > 15 mg kg−1. Two common bean varieties (Gloria and NUA45) were tested in a split-plot arranged in randomized complete block design. The main plot factor was the combination of N (0 and 40 kg ha−1) and P (0 and 20 kg ha−1), and the sub-plot factors were variety (Gloria and NUA 45) and inoculation with Rhizobium tropici strain CIAT899 (+/− inoculum). At planting, both N and P were applied at 20 kg ha−1, with an additional 20 kg ha−1 N top dressing applied at flowering. Analysis of variance indicated common bean did not respond to rhizobia inoculation (P > 0.05) whilst P significantly increased the number of nodules and active nodules per plant (P 
 
Date 2018-11
2018-10-03T06:34:49Z
2018-10-03T06:34:49Z
 
Type Journal Article
 
Identifier Chekanai, V., Chikowo, R. & Vanlauwe, B. (2018). Response of common bean (Phaseolus vulgaris L.) to nitrogen, phosphorus and rhizobia inoculation across variable soils in Zimbabwe. Agriculture, Ecosystems & Environment, 266, 167-173.
0167-8809
https://hdl.handle.net/10568/97560
https://doi.org/10.1016/j.agee.2018.08.010
NATURAL RESOURCE MANAGEMENT
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format 167-173
application/pdf
 
Publisher Elsevier BV
 
Source Agriculture, Ecosystems and Environment