Data/hora: 12/06/2024 08:43:04

Provedor de dados: 	65	
País: 	Brazil	
Título: 	Productivity of soybean in management zones with application of different sowing densities	
Autores: 	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.	
Data: 	2018-01-01	
Ano: 	2018	
Palavras-chave: 	Precision agriculture; Grain production; Management zones.	
Resumo: 	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.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001200201	
Editor: 	Universidade Federal de Santa Maria	
Relação: 	10.1590/0103-8478cr20180532	
Formato: 	text/html	
Fonte: 	Ciência Rural  v.48 n.12 2018	
Fonte: 	info:eu-repo/semantics/openAccess