%0 Journal Article
%T Production of Phaseolus vulgaris L. Genotypes with Tithonia diversifolia (Hemsl.) Gray and Cajanus cajan (L.) Millsp.
%A Pedro S. Jorge-Mustonen
%A Maren Oelbermann
%A Donald C. L. Kass
%J Agronomy
%D 2013
%I MDPI AG
%R 10.3390/agronomy3010232
%X Adding mulch biomass prior to crop seeding may improve production of tropical soil. We evaluated the response of four bean ( Phaseolus vulgaris L.) genotypes to the addition of mulch biomass from Tithonia diversifolia (Hemsl.) Gray and Cajanus cajan L. Millsp. The addition of mulch did not result in significant differences ( p < 0.05) in soil characteristics when compared to a control (no mulch addition) except for soil potassium (K), which was significantly greater ( p < 0.05) in the T. diversifolia mulch biomass treatment. Bean yield and shoot biomass were significantly greater ( p < 0.05) in the mulch biomass treatments compared to the control (no biomass added). In these treatments, Phosphorus (P)-efficient bean genotypes had a significantly greater ( p < 0.05) yield and shoot biomass. Bean shoot nutrient concentrations were significantly different ( p < 0.05) between mulch biomass treatments and between bean genotypes (P, K and magnesium (Mg) only). Phosphorus utilization and uptake efficiencies were significantly different ( p < 0.05) between mulch biomass treatments and between bean genotypes. Bean root biomass was not significantly different ( p < 0.05) between mulch biomass treatments, but was significantly different ( p < 0.05) between bean genotypes. The number of root nodules was significantly greater ( p < 0.05) in the T. diversifolia mulch biomass treatment and was significantly different between bean genotypes.
%K bean genotypes
%K mulch
%K bean yield
%K shoot biomass
%K phosphorus uptake efficiency
%K phosphorus utilization efficiency
%U http://www.mdpi.com/2073-4395/3/1/232