TY - JOUR
T1 - Plant density and nitrogen fertilization on common bean nutrition and yield
AU - Soratto, Rogério Peres
AU - Catuchi, Tiago Aranda
AU - De Souza, Emerson De Freitas Cordova
AU - Garcia, Jader Luis Nantes
N1 - Publisher Copyright:
© 2017, Universidade Federal Rural do Semi-Arid. All rights reserved.
PY - 2017
Y1 - 2017
N2 - The objective of this work was to evaluate the effect of plant densities and sidedressed nitrogen (N) rates on nutrition and productive performance of the common bean cultivars IPR 139 and Pérola. For each cultivar, a randomized complete block experimental design was used in a split-plot arrangement, with three replicates. Plots consisted of three plant densities (5, 7, and 9 plants ha-1) and subplots of five N rates (0, 30, 60, 120, and 180 kg ha-1). Aboveground dry matter, leaf macro- and micronutrient concentrations, yield components, grain yield, and protein concentration in grains were evaluated. Lower plant densities (5 and 7 plants m-1) increased aboveground dry matter production and the number of pods per plant and did not reduce grain yield. In the absence of N fertilization, reduction of plant density decreased N concentration in common bean leaves. Nitrogen fertilization linearly increased dry matter and leaf N concentration, mainly at lower plant densities. Regardless of plant density, the N supply linearly increased grain yield of cultivars IPR 139 and Pérola by 17.3 and 52.2%, respectively.
AB - The objective of this work was to evaluate the effect of plant densities and sidedressed nitrogen (N) rates on nutrition and productive performance of the common bean cultivars IPR 139 and Pérola. For each cultivar, a randomized complete block experimental design was used in a split-plot arrangement, with three replicates. Plots consisted of three plant densities (5, 7, and 9 plants ha-1) and subplots of five N rates (0, 30, 60, 120, and 180 kg ha-1). Aboveground dry matter, leaf macro- and micronutrient concentrations, yield components, grain yield, and protein concentration in grains were evaluated. Lower plant densities (5 and 7 plants m-1) increased aboveground dry matter production and the number of pods per plant and did not reduce grain yield. In the absence of N fertilization, reduction of plant density decreased N concentration in common bean leaves. Nitrogen fertilization linearly increased dry matter and leaf N concentration, mainly at lower plant densities. Regardless of plant density, the N supply linearly increased grain yield of cultivars IPR 139 and Pérola by 17.3 and 52.2%, respectively.
KW - Grain yield
KW - Mineral nutrition
KW - Nitrogen
KW - Phaseolus vulgaris
KW - Plant population
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U2 - 10.1590/1983-21252017v30n315rc
DO - 10.1590/1983-21252017v30n315rc
M3 - Article
AN - SCOPUS:85019082126
SN - 0100-316X
VL - 30
SP - 670
EP - 678
JO - Revista Caatinga
JF - Revista Caatinga
IS - 3
ER -