Microbial fertilizer from PK rocks on lettuce nutrients and soil attributes in consecutive crops Fertilizante microbiano com rochas de P e K sobre nutrientes da alface e atributos do solo em cultivos consecutivos
[EN]The objective of this work was to evaluate the effect of a microbial fertilizer, produced from phosphate and potassic rocks and earthworm compost, as an alternative to conventional fertilizers, on lettuce (Lactuca sativa) nutrients and soil attributes. The experiment was conducted in consecutive...
| Authors: | , , , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2021 |
| Country: | España |
| Institution: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repository: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/260594 |
| Online Access: | http://hdl.handle.net/10261/260594 |
| Access Level: | Open access |
| Keyword: | Lactuca sativa Agromineral Organic fertilizer Residual effect Fertilizante orgânico Efeito residual |
| Summary: | [EN]The objective of this work was to evaluate the effect of a microbial fertilizer, produced from phosphate and potassic rocks and earthworm compost, as an alternative to conventional fertilizers, on lettuce (Lactuca sativa) nutrients and soil attributes. The experiment was conducted in consecutive cycles (30 and 60 days) in a soil from the Lorca region, in the municipality of Murcia, Spain. The fertilization treatments were: conventional fertilizer, 100% of the recommended rate (RR); microbial fertilizer, 50% of the RR (5 Mg ha); microbial fertilizer, 100% of the RR (10 Mg ha); microbial fertilizer, 150% of the RR (15 Mg ha); and control, without N-PO-KO fertilization. The microbial fertilizers applied at 100 and 150% of the RR showed significant and positive effects, as well as the best results for plant characteristics. The microbial fertilizer increased total N and available P and K compared with the conventional fertilizer. A residual effect was observed in the successive cycle. The effectiveness of the microbial fertilizer shows it is a viable alternative to conventional fertilizers, with positive effects on plant productivity and soil attributes. |
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