2024-03-29T15:30:26Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/98482019-02-12T07:56:27Zcom_10261_15com_10261_6col_10261_268
2009-01-24T13:01:16Z
urn:hdl:10261/9848
Urban composts as an alternative for peat in forestry nursery growing media
López Núñez, Rafael
Cabrera, Francisco
Madejón, Engracia
Sancho, Felipe
Álvarez, José María
Junta de Andalucía
Ministerio de Ciencia e Innovación (España)
Urban composts
Forestry nursery growing media
Peat
Compost percentage
Plant growth
Including urban composts in nursery growing media could reduce peat use and promote new markets for these products. The objective of this work was to study the effects of compost incorporation in forestry nursery growing media. Growing media were prepared mixing composts (0-75% in volume) from biosolids, municipal solid waste and pruning waste with peat. As control treatment, a peat-based substrate was employed. Hydrophysical and chemical properties of growing media were determined. Moreover the effects of these growing media on rosemary and cypress plant growth (height, stem diameter, nutrient contents) in propagation and production trials were monitored. Hydrophysical properties of compost based growing media were adequate up to 50% compost. The Carbon/Nitrogen ratio of composts (10.7-12.4) was indicative of compost maturity. Compost EC values frequently surpasses those of standard peat substrates, therefore substrate salinity limited the maximum percentage of compost in substrates. In the case of cutting propagation, rosemary growth was increased to 50% compost (EC 1.1-1.3 dS m-1). Cypress seed germination was not affected until 75% compost (EC 1.4-1.9 dS m-1) and its growth was increased in all compost growing media. Plant growth increased was related to the fertilizing effect of compost. Although composts content of Ni, Zn, and Pb were greater than those of standard peat substrates, only concentration of Zn was greater in compost-media cultivated plants. As a general rule, forestry nursery growing media could incorporate up to 50% composts from biosolids, municipal solid waste and pruning wastes mixed with peat.
2009-01-24T13:01:16Z
2009-01-24T13:01:16Z
2008
artículo
Dynamic Soil, Dynamic Plant (Special Isue 1): 60-66 (2008)
978-4-903313-18-4
1749-6500
http://hdl.handle.net/10261/9848
1749-6519
http://dx.doi.org/10.13039/501100004837
http://dx.doi.org/10.13039/501100011011
eng
openAccess
Global Science Books