Soil Nutrient, Salinity, and Alkalinity Responses of Dendrocalamopsis oldhami in High-Latitude Greenhouses Depending on Planting Year and Nitrogen Application

This study explored the viability of greenhouse cultivation Dendrocalamopsis oldhami under “South Bamboo North Transplanting” initiative. In this study, effects planting year and nitrogen application on changes in soil nutrient levels, salinity, alkalinity over plant growth period were explored. After introduction bamboo 2017, a layer with thickness 0–40 cm was sampled at end shooting stage between 2017 2019 (late August), shoot yield standing culm density measured. Following to groves 2019, three levels established: no (N1:0 g grove−1), medium (N2:540 high (N3:1080 grove−1). Soil layers depths 0–20 20–40 during elongation May) August). The content shoots different treatments also investigated. results showed that Ca2+ HCO3− main salt ions soil. With later years, total number cations (Ca2+, Na+, Mg2+, K+) decreased, whereas anions (HCO3−, SO42−, NO3−, Cl−) increased, resulting decrease percentage exchangeable sodium (ESP), pH, electrical conductivity (EC). diameter breast height, individual weight, quantity increased annually, by 1.4 times. Each year, alkali-hydrolyzed nitrogen, available phosphorus, potassium contents increased. Nitrogen resulted significant ESP pH an increase anion, cation, EC values. It reduced organic carbon, potassium, potassium. shoots, yield, accumulation N P; however, there difference N2 N3. conclusion, salinization calcareous alleviated, nutrients activated following D. from south north. mineralization rates matter fertility acidification decreased stage. acidified soil, increasing levels. uptake efficiencies lower than those Therefore, concentrations values 0.26 < 0.42 hindered oldhami.