油茶大田嫁接苗质量调查

Investigation on Quality of Field Grafting Seedlings of Camellia oleifera

对江西省16个1年生和10个2年生油茶苗圃进行调查，结果表明，1年生和2年生大田嫁接苗的平均合格率分别为48.0%和76.6%；2年生苗的合格率与土壤有机质和水解氮的含量正相关。2年生苗推荐的施肥水平为：土壤全氮0.114%～0.413%、水解氮114.86～132.92 mg/kg、全磷0.047%～0.073%、速效磷32.13～71.59 mg/kg、全钾1.203%～1.274%、速效钾48.08~67.08 mg/kg、有机质2.627%～3.171%。

By investigating 16 one-year-old and 10 two-year-old Camellia oleifera nurseries in Jiangxi Province, the results showed that： the mean qualified rate of one-year-old and two-year-old field grafting seedlings were 48.0% and 76.6%, respectively. The mean qualified rate of two-year-old ones was significantly correlated with soil organic matter and available N. The recommended soil conditions for two-year-old ones were total N 0.114%~0.413%, available N 114.86~132.92 mg/kg, total P 0.047%~0.073%, available P 32.13~71.59 mg/kg, total K 1.203%~1.274%, available K 48.08~67.08 mg/kg, organic matter 2.627%~3.171%.