Journal
JOURNAL OF APPLIED PHYCOLOGY
Volume 33, Issue 2, Pages 1305-1314Publisher
SPRINGER
DOI: 10.1007/s10811-021-02387-2
Keywords
Microbes; Productivity; Quality; Seaweed extract; Rhizosphere; Soil; Tomatoes
Funding
- Seasol International Pty Ltd (Australia)
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The study found that seaweed extract has positive effects on tomato plants and soil, promoting plant growth and increasing soil biodiversity. These findings may offer breakthrough approaches for sustainable food production.
This study investigated the effects of seaweed extract (SWE) made from the brown algae Durvillaea potatorum and Ascophyllum nodosum on plants and soil. The application of SWE to soil growing tomato plants showed dual effects. SWE comprehensively improved tomato plant growth (flower clusters, flower number, fruit number, root length, root and shoot dry weight, SPAD) and increased plant productivity (yield and quality). Similarly, SWE application effected soil biology at the soil root zone by increasing total bacterial count and available soil nitrogen and impacting bacterial community diversity with an increase in certain bacterial families linked to soil health. A broader understanding of the effects of SWE on the plant-soil ecosystem may offer breakthrough approaches for sustainable food production.
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