Effects of compost tea treatments on productivity of lettuce and kohlrabi systems under organic cropping management
Italian Journal of Agronomy 2014
In the sunny Mediterranean climate of Italy a group of agricultural researchers looked into the effects of compost tea on two different leafy green crops, lettuce and kohlrabi. The experiment used compost tea made from a thermophilic compost combination of artichoke, fennel, escarole residue, and wood chips. The scholarly gardeners foliar sprayed the kholrabi and soil-drenched the lettuce. What they found was, compost tea works. As compared to the untreated control, foliar sprayed lettuce increased total production by 6% (measured in harvested weight), and more importantly, increased the marketable heads of lettuce by 24%. The soil drenched kohlrabi increased its total production by a whopping 26%, and its marketable product by 32%. That's a lot of kohlrabi. Grazie to the scientists for their diligent work.