Productivity of soybean in management zones with application of different sowing densities
ABSTRACT: The present study aimed to assess the efficiency of sowing at variable rates for soybean cultivation in two management zones (MZs) which were defined based on stable attributes and correlated with productivity using the Fuzzy C-means clustering algorithm and the kriging interpolation.Seeding was carried out in the 2015/2016 and 2017/2018 crops with a variation of 20% of seeds and crop row spacing of 0.70m. In each MZ, 8 plots with higher and lower seed density were established. Productivity was measured using a harvest monitor connected to a harvester. Data were filtered and submitted to descriptive analysis. Productivity maps were generated using the inverse square distance interpolation for each seeding density. In the MZ with the highest productive potential (MZ 1), the productivity was 3.39 and 3.18t ha-1, and in the MZ with the lowest productive potential (MZ 2) the productivity was 3.30 and 3.11t ha-1 for the years 2016 and 2018, respectively. Interpolation estimated higher productivity with the application of 15 plants m-1. Based on the economic analysis, it is suggested in this study the application of 214,000 plants ha-1 in both MZs.
Main Authors: | Camicia,Rafaela Greici da Motta, Maggi,Marcio Furlan, Souza,Eduardo Godoy de, Bazzi,Claudio Leones, Konopatzki,Evandro André, Michelon,Gabriela Karoline, Pinheiro,José Bruno Santos |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Universidade Federal de Santa Maria
2018
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001200201 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
Similar Items
-
Yield components of soybean cultivars under sowing densities
by: Paraginski,João Antônio, et al.
Published: (2022) -
Density and sowing season of two Brachiaria species on the soybean culture
by: Saraiva,A.S., et al.
Published: (2013) -
Expression of agronomic characteristics of soybean managed under different sowing times and cultivation densities
by: Peter, Márcio, et al.
Published: (2021) -
MODELAGEM DO PROCESSO DE SECAGEM DE SEMENTES DE FEIJÃO-CAUPI
by: CAMICIA,RAFAELA GREICI DA MOTTA, et al.
Published: (2015) -
Sowing seasons and quality of soybean seeds
by: Ávila,Marizangela Rizzatti, et al.
Published: (2003)