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• Effects of Planting Density and Fertilizer Level on Growth, Development andProductivity of Honeysuckle (LonicerajaponicaThunb.) at Thanh Tri - Ha Noi

  Ninh Thi Phip, Do Thi Be

  Date Received: 26-04-2018 / Date Accepted: 09-10-2018

   Abstract PDF (VIETNAMESE)

  The present studywas to determineeffects of planting densityandlevel of NPK fertilizer on plant growth, productivity and medicinal quality and economic efficiency of honeysuckle (Lonicera JaponicaThunb.) in Thanh Tri -Ha Noi were studied. The experiment was designed according to a split-plot design with 3 replicationsat three NPK levels (P1, P2, P3)and four planting densities (M1, M2, M3, M4). The results showed that the plant growth, yield andmedicinalquality were influenced by planting density and the level of fertilizer. The plant grown at M2 (27,800 plants/ha, 60x60 cm) and fertilized withP3 (20 tons farmyard manure + 120 kg N/ha + 90 kg P2O5/ha + 120 kg K2O/ha)produced higher yield but lower loganin content compared to the other treatments. Plants grown with P1 (80 kg N/ha + 60 kg P2O5/ha + 80 kg K2O/ha)combined with M2 (27,800 trees/ha, 60x60 cm)produced good yield of medicinal material (34.70 quintals/ha), highest loganin content and highest loganin yiled.