Título:	Nitrate in soil solution with use of plant cocktails as green manure in diferent tillage systems in the brazilian semi-arid
Autoria:	PEREIRA FILHO, A. GIONGO, V. SIMOES, W. L. TEIXEIRA FILHO, J. FIGUEIREDO NETO, A.
Afiliação:	ANTONIO PEREIRA FILHO; VANDERLISE GIONGO, CPATSA; WELSON LIMA SIMOES, CPATSA; JOSÉ TEIXEIRA FILHO, UNICAMP; ACÁCIO FIGUEIREDO NETO, UNIVASF.
Ano de publicação:	2016
Referência:	In: CONGRESO LATINOAMERICANO Y DEL CARIBE DE INGENIERÍA AGRICOLA, 12., 2016, Bogotá. Proceedings... Bogotá: ALIA: ASIAC: Universidad Nacional de Colobia, 2016.
Conteúdo:	Tillage systems strongly affect nutrient transformations and plant availability. The objective of this study was to assess the nitrate dynamic in soil solution in different tillage systems with use of plant cocktail as green manure in fertilized melon (Cucumis melon) in Brazilian semi-arid. The treatments were arranged in four blocks in a split-plot design and included three types of cover crops and two tillage systems, conventional tillage (CT) and no-till (NT). The data showed no strong effect of plant cocktails composition on NO3-N dynamic in the soil. Mean concentration of NO3-N ranged from 19.45 mg L-1 at 15 cm to 60.16 mg L-1 at 50 cm soil depth, indicating high leachability. No significant differences were observed between NT and CT treatments for 15 cm depth. The high soil moisture content at ~ 30 cm depth concentrated high NO3-N in all treatments, mean of 54.27 mg L-1 to NT and 54.62 mg L-1 to CT. The highest NO3-N concentration was observed at 50 cm depth in TC (60.16 mg L-1). High concentration of NO3-N in CT may be attributed to increase in decomposition of soil organic matter and crop residues incorporated into the soil.
Thesagro:	Melão Fertilidade Adubação verde Cobertura do Solo Fertilidade do Solo Manejo do Solo
Palavras-chave:	Macronutrientes Cucumis melon Melon
Tipo do material:	Artigo em anais e proceedings
Acesso:	openAccess
Aparece nas coleções:	Artigo em anais de congresso (CPATSA)