Invasive Plants in Support of Urban Farming: Fermentation-Based Organic Fertilizer from Japanese Knotweed

In this study, fermentation-based organic fertilizer (OF) was produced from the aboveground parts of Fallopia japonica (Houtt.) Ronse Decr. The quantity N in OF (17.2 kg t−1 fresh lactic-fermented OF) higher than average cattle farmyard manure, but on a comparable level to solid poultry and rabbit manure. applied field evaluate its effect Chinese cabbage. nutrients with N159 were 159, 19 100 ha−1 for N, P, K, respectively. N317 317, 38, 200 mass marketable cabbage (Brassica pekinensis Rupr.) single heads ranged 253 g N0 treatment 602 treatment. nutrient recovery efficiency REN,P,K 37, 20, 50% 55, 48, 77% N159. found be suitable alternative Additionally, F. could complement existing approaches limit spread invasive species cities. Further research should focus perennial crop rotations cropping patterns, different soil types, greater variety crops consider possible retention urban farmers using plants.