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Dynamics of nutrient availability in tomato production with organic fertilisers

Bergstrand, Karl-Johan and Löfkvist, Klara and Asp, Håkan (2020). Dynamics of nutrient availability in tomato production with organic fertilisers. Biological Agriculture & Horticulture. 36 , 200-212
[Journal article]

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Abstract

In greenhouse organic horticulture there is a great challenge in supplying the crop with adequate amounts of nutrients at the right stage of crop development. This has been identified as one of the main factors compromising yields in organic systems as compared with conventional hydroponic systems based on the use of synthetic fertilisers. In organic systems, the supply of nutrients is reliant on microbial degradation of organic complexes, a process that is dependent on factors such as temperature, soil water content and pH. Different organic fertilisers will also have different characteristics with respect to mineralisation of nutrients. In order to evaluate different strategies for organic fertilisation in long-term greenhouse crops such as high-wire tomato crops, an experiment with three different treatments was performed. The different strategies evaluated were one based on blood meal, kalimagnesia and the commercial product Baralith Enslow (composed of clay and ground lucerne), one with poultry manure and kalimagnesia, and one with solid biogas digestate and kalimagnesia. A five-month tomato crop was grown. Lysimeter samples were taken from the growing media biweekly for monitoring of plant available nutrients. The results suggested that nitrogen was likely to have been the limiting factor for plant growth, however, the biogas digestate delivered mineralised nitrogen throughout the experiment.

Authors/Creators:Bergstrand, Karl-Johan and Löfkvist, Klara and Asp, Håkan
Title:Dynamics of nutrient availability in tomato production with organic fertilisers
Year of publishing :2020
Volume:36
Page range:200-212
Number of Pages:13
Publisher:Taylor & Francis
Associated Programs and Other Stakeholders:Z - SLU - Libray > Odla mera
ISSN:0144-8765
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Horticulture
Keywords:Biogas digestate, greenhouse production, lysimeter sampling, nitrogen, organic farming, Solanum lycopersicum
URN:NBN:urn:nbn:se:slu:epsilon-p-107049
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-107049
Additional ID:
Type of IDID
DOI10.1080/01448765.2020.1779816
ID Code:17375
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Biosystems and Technology (from 130101)
(VH) > Department of Biosystems and Technology (from 130101)
Deposited By: SLUpub Connector
Deposited On:01 Sep 2020 12:46
Metadata Last Modified:02 Sep 2020 04:01

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