Het schijnt nogal uit te maken of de kwaliteit of de compost thee goed is. Deze man deed zelf tests en gelooft niet meer in compost thee: https://www.youtube.com/watch?v=xdkhEJr3x1I&t=214s. Maar deze geloofwaardige bron zegt het tegengestelde: "More so, vermicomposting or composting with earthworms is an excellent technique for improving the physical, chemical and biological properties of the soil. Also, use of vermicompost promotes germination growth and flowering and increases the yields of horticultural crops, tomatoes, peppers, strawberries, foliage crops, and others (Litterick et al., 2004; Ryan et al., 2005)" https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4564151/
en ook: "Efficacy of compost extracts may vary considerably. This may be due to differences in procedures used for preparation of the compost extracts, the source, nutrient composition, quality, and maturity of the compost (Weltzien, 1992)"
Three types of organic compost materials, rice straw compost, vermicompost and Hinoki cypress bark compost were prepared using same materials and allowed to mature for two years using windrow composting system. The organic compost mixtures (MOVR) obtained from two-year old composted rice straw compost, vermicompost and Hinoki cypress bark compost were used for the production of aerated compost tea. Aerated compost tea was prepared by mixing one liter of homogenized compost mixture with 10 l of tap water (from agricultural well) in a 20 l handmade compost tea brewer. Actively aerated compost tea was allowed to brew at room temperature for four days of incubation in 20 l of handmade compost tea brewer with air pump. Following the incubation period, actively aerated compost was filtered through two-layer 800 micron mesh bag which reduces the chance of clogging application equipment for foliage spray.
Table 1
Growth characteristics of red leaf lettuce by different concentration of the mixture of oriental medicinal herbs compost, rice straw compost and vermicompost tea (MOVR), 0.1%, 0.2%, 0.4%, and 0.8% in greenhouse. Means followed by the same letter are not significantly different (p<0.05) within each concentration
en ook: "Efficacy of compost extracts may vary considerably. This may be due to differences in procedures used for preparation of the compost extracts, the source, nutrient composition, quality, and maturity of the compost (Weltzien, 1992)"
Three types of organic compost materials, rice straw compost, vermicompost and Hinoki cypress bark compost were prepared using same materials and allowed to mature for two years using windrow composting system. The organic compost mixtures (MOVR) obtained from two-year old composted rice straw compost, vermicompost and Hinoki cypress bark compost were used for the production of aerated compost tea. Aerated compost tea was prepared by mixing one liter of homogenized compost mixture with 10 l of tap water (from agricultural well) in a 20 l handmade compost tea brewer. Actively aerated compost tea was allowed to brew at room temperature for four days of incubation in 20 l of handmade compost tea brewer with air pump. Following the incubation period, actively aerated compost was filtered through two-layer 800 micron mesh bag which reduces the chance of clogging application equipment for foliage spray.
Table 1
Growth characteristics of red leaf lettuce by different concentration of the mixture of oriental medicinal herbs compost, rice straw compost and vermicompost tea (MOVR), 0.1%, 0.2%, 0.4%, and 0.8% in greenhouse. Means followed by the same letter are not significantly different (p<0.05) within each concentration
| MOVR 0.1% | 10.7 c | 16.7 c | 11.4 c | 351.5 d |
| MOVR 0.2% | 12.1 bc | 17.5 bc | 13.6 b | 540.2 c |
| MOVR 0.4% | 16.2 a | 23.3 a | 18.2 a | 872.9 a |
| MOVR 0.8% | 13.4 b | 19.1 b | 15.2 ab | 653.8 b |
| Untreated control | 10.2 c | 14.0 d | 10.1 d | 250.2 e |
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