Data/hora: 16/06/2024 09:02:04

Provedor de dados: 	70	
País: 	Brazil	
Título: 	Test for alternative indicator of soybean sowing depth	
Autores: 	SOUZA,NÁTALI M.; WEIRICH NETO,PEDRO H.	
Data: 	2015-02-01	
Ano: 	2015	
Palavras-chave: 	Glycine max L.; Planting process; Root.	
Resumo: 	Among studies focused on increasing soybean grain yield, the ones related to sowing process are the most significant. Considering that soybean has an epigeal emergence, it becomes difficult to hint at the length covered by hypocotyl up to soil surface, or the actual planting depth. This study aimed to find an indicator that allows the identification of an ideal soybean planting depth. For this purpose, two complementary assays has been carried out in a greenhouse. The first aimed to identify structures that could be indicators of seed planting depth, on a medium-textured soil from Campos Gerais region, in the state of Paraná, Brazil. Spring NK 8350 cultivar seeds were sown at five theoretical depths (1, 2, 3, 4 and 5 cm). As seedlings emerged, the “differentiation zone” and the “root curve” depths were measured. The second assay was the validation of the suggested indicators in assay 1 from two soils, one medium-textured and one clay-textured. For this assay, it was used BRS 232. Both the methodologies showed high correlation with the theoretical planting depth. Although their correlation coefficient values were close, the differentiation zone appeared to be the most efficient reference with less planting depth overestimation.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162015000100128	
Editor: 	Associação Brasileira de Engenharia Agrícola	
Relação: 	10.1590/1809-4430-Eng.Agric.v35n1p128-133/2015	
Formato: 	text/html	
Fonte: 	Engenharia Agrícola  v.35 n.1 2015	
Fonte: 	info:eu-repo/semantics/openAccess