U.S. Department of Agriculture: Agricultural Research Service, Lincoln, Nebraska

 

Date of this Version

3-2017

Citation

ANNUAL REPORT OF THE BEAN IMPROVEMENT COOPERATIVE, No. 60, March 2017. Published by USDA.

Comments

U.S. government work.

Abstract

INTRODUCTION: The lima bean culture, if technically exploited, may cause great changes in the socio economic reality of the producing regions of Northeast Brazil. The commitment to the development of technologies for lima bean culture will result in a significant increase in yield, improvement in quality, which directly affecting in the quality of life’s farmer (Neto Barreiro et al. 2015). In this work, we aimed to perform the agronomic evaluation of eight lima bean landraces to identify those with potential for cultivation.

MATERIAL AND METHODS: The experiment was carried out in area of the Department of Agriculture of the Federal University of Piauí, in Teresina, Piauí, Brazil. We evaluated twelve lima bean landraces from six Northeastern Brazilian states (Table 1). The landraces present an indeterminate growth habit and the cultivation was intercropped with corn, variety AL Piratininga, which offered support to the legume. A completely randomized experimental design was used, with four replications. Each plot was composed of four rows of 5.0 m, spaced 0.80 m x 0.70 m. In corn, fertilization at planting consisted of 30 kg ha-1 of N from ammonium sulfate, 270 kg ha-1 of P2O5 from single superphosphate and 85 kg ha-1 of K2O from potassium chloride, based on soil analysis. Three topdressing fertilizations were made with 180 kg ha-1 of N and 90 kg ha-1 of K2O at the rate of 40% with 4 to 6 leaves; 40% with 8 to 10 leaves, and 20% with 12 leaves. The sowing of the bean was done in pits, soon after the emergence of the corn. The fertilization consisted of one kg of bovine manure, 20 kg ha-1 of N, 40 kg ha-1 of P2O5 and 30 kg ha-1 of K2O, at the planting time. Weed control was performed with manual weeding during the crop cycle.

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