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GROWING MEDIA FOR ORGANIC TOMATO PLANTLET PRODUCTION

Nielsen, Kai Lønne and Thorup-Kristensen, Kristian (2001) GROWING MEDIA FOR ORGANIC TOMATO PLANTLET PRODUCTION. Paper at: Symposium on Growing Media & Hydroponics, Alnarp, September 2001.

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Summary

The choice of growing media and the strategy of application of organic fertilizers is considered one of the largest challenges for production of organic tomato plantlets for transplanting. We have measured the growth and the ability of young tomato plantlets to extract plant nutrients from an organic growing media. Plants were grown in 0.45L pots. Plant nutrition were either entirely based on the mineral nutrients, available from the organic growing media or based on a combination of nutrients from the organic growing media and fertigation with water-soluble organic fertilizers during plantlet production. The first results shows that plant dry weigth and uptake of nitrogen, phosphorus and potassium was reduced in the organic growing media compared to the control, peat based growing media, but the results also indicate a possibility for optimizing the suggested organic growing media in order to increase the nutrient acquisition and utilization efficiency of the plants. Improved organic growing media can supply most of the necessary plant nutrients needed for the plant, limit the need for supplementary fertilisation, and be an alternative to conventional production with inorganic fertilizers.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:tomato compost propagation
Subjects: Crop husbandry > Breeding, genetics and propagation
Crop husbandry > Production systems > Vegetables
Crop husbandry > Composting and manuring
Research affiliation: Denmark > DARCOF II (2000-2005) > I. 1 (ORTCTOM) Organic production of cucumber and tomato
Deposited By: Thorup-Kristensen, Professor Kristian
ID Code:1606
Deposited On:08 Oct 2003
Last Modified:12 Apr 2010 07:28
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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