| Registro completo |
| Provedor de dados: |
Rev. Bras. Ciênc. Solo
|
| País: |
Brazil
|
| Título: |
Dry matter production and nutrient accumulation after successive crops of lettuce, tomato, rice, and andropogongrass in a substrate with zeolite
|
| Autores: |
Bernardi,Alberto C. de Campos
Monte,Marisa Bezerra de Mello
Paiva,Paulo Renato Perdigão
Werneck,Carlos Guarino
Haim,Patrick Gesualdi
Barros,Fernando de Souza
|
| Data: |
2010-04-01
|
| Ano: |
2010
|
| Palavras-chave: |
Stilbite
Lactuca sativa
Lycopersicum esculentum
Oryza sativa
Andropogon gayanus
Slow-release fertilizer
Growth substrate
|
| Resumo: |
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.
|
| Tipo: |
Info:eu-repo/semantics/article
|
| Idioma: |
Inglês
|
| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000200017
|
| Editor: |
Sociedade Brasileira de Ciência do Solo
|
| Relação: |
10.1590/S0100-06832010000200017
|
| Formato: |
text/html
|
| Fonte: |
Revista Brasileira de Ciência do Solo v.34 n.2 2010
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
|
