Open AccessProduction and profitability of yacon grown in different spatial arrangements
Author(s) -
Arnaldo Henrique de Oliveira Carvalho,
Fábio Luíz de Oliveira,
Wallace Luís de Lima,
Ariany Teixeira da Graça,
Joab Luhan Ferreira Pedrosa,
Magno do Carmo Parajára
Publication year - 2020
Publication title -
australian journal of crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 44
eISSN - 1835-2693
pISSN - 1835-2707
DOI - 10.21475/ajcs.20.14.08.p2158
Subject(s) - yacón , profitability index , randomized block design , profit (economics) , mathematics , sowing , productivity , production (economics) , yield (engineering) , agricultural engineering , agronomy , statistics , business , biology , botany , economics , engineering , materials science , macroeconomics , finance , metallurgy , microeconomics
The interest in yacon has generated a demand for information that may enhance the production system. Among them are the studies on the different spatial arrangements of planting spacing. Therefore, the purpose of this study was to evaluate the production and yield of yacon cultivated in different arrangements, varying the spaces between the lines and the plants. The experimental design was a randomized complete block design, being the parcels composed by three spacing between lines (0.80, 1.0 and 1.20 meters) and the subplots by three spacing between plants within the lines (0.40, 0.50 and 0.60 meters), distributed in 9 treatments with four replications. At harvest time, evaluations on the accumulation of dry mass in the plant and tuber root production data (number, weight, total productivity, and per class) were made. Profitability indicators were estimated (Gross Income, Operational Profit and Benefit-Cost ratio). The arrangements of 0.80 x 0.40 m and 1.00 x 0.50 m produced higher tuberous roots yield (37.5 and 39.8 t ha-1, respectively), but the arrangement 1.00 x 0. 50 m had a higher profit (US$ 13,854.91) and a better benefit-cost ratio (4.9), which is the most indicted.