Data/hora: 21/09/2024 16:32:26

Biblioteca(s): 	Embrapa Pecuária Sudeste.	
Data corrente: 	05/10/2010	
Data da última atualização: 	04/07/2023	
Autoria: 	BERNARDI, A. C. de C.; MONTE, M. B. de M.; PAIVA, P. R. P.; WERNECK, C. G.; HAIM, P. G.; BARROS, F. de.	
Afiliação: 	ALBERTO CARLOS DE CAMPOS BERNARDI, CPPSE; MARISA BEZERRA DE MELLO MONTE, CETEM/RIO DE JANEIRO; PAULO RENATO PERDIGÃO PAIVA, CETEM/RIO DE JANEIRO; CARLOS GUARINO WERNECK, UFRRJ/RIO DE JANEIRO-RJ; PATRICK GESUALDI HAIM, UFRRJ/RIO DE JANEIRO-RJ; FERNANDO DE SOUZA BARROS, UFRJ/RIO DE JANEIRO-RJ.	
Título: 	Dry matter production and nutrient accumulation after successive crops of lettuce, tomato, rice, and andropogon grass in a substrate with zeolite.	
Ano de publicação: 	2010	
Fonte/Imprenta: 	Revista Brasileira de Ciência do Solo, v. 34, p. 435-442, 2010.	
Idioma: 	Português	
Conteúdo: 	Zeolites are hydrated crystalline aluminosilicate minerals of natural occurrence, structured in rigid third dimension net that can be used as slow release plant-nutrient source. The main objective of this study was to evaluate the effects of plant growth substrate under zeolite application, enriched with N, P and K, on dry matter yield and on nutrient contents in consecutive crops of lettuce, tomato, rice, and andropogon grass. The experiment was carried out in a greenhouse, with 3 kg pots with an inert substrate, evaluated in a randomized block design with three replications. Treatments consisted of four types of enrichment of concentrated natural zeolite: concentrated zeolite (Z) only, zeolite + KNO3 (ZNK), zeolite + K2HPO4 (ZPK) and zeolite + H3PO4 + apatite (ZP), and a control grown in substrate fertilized with a zeolite-free nutrient solution. Four levels of enriched zeolite were tested: 20, 40, 80, and 160 g/pot. Four successive crops were grown on the same substrate in each pot: lettuce, tomato, rice, and andropogon grass. Results indicated that N, P and K enriched zeolite was an adequate slow-release nutrient source for plants. The total dry matter production of above-ground biomass of four successive crops followed a descending order: ZP > ZPK > ZNK > Z. I	
Palavras-Chave: 	Fertilizer; Lycopersicum esculentum; Slow-release; Stilbite.	
Thesagro: 	Andropogon Gayanus; Lactuca Sativa; Oryza Sativa.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
Registro original: 	Embrapa Pecuária Sudeste (CPPSE)	
Exemplares: 	CPPSE - (19525-1) - UPC - AP - DD - PROCI-2010.00081 - BER - 2010.00081 - DIS