论文部分内容阅读
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%。
The survey of 16 perennials and 10 2-year-old camellia nurseries in Jiangxi Province showed that the average passing rates of grafted seedlings in one-year and two-year field were 48.0% and 76.6% respectively. The passing rate of two-year seedlings was similar to that of soil organic matter and Hydrolyzed nitrogen content is positively correlated. The recommended fertilization levels of 2-year-old seedlings were: soil total nitrogen 0.114% -0.413%, hydrolyzed nitrogen 114.86-132.92 mg / kg, total phosphorus 0.047% -0.073%, available phosphorus 32.13-71.59 mg / kg, total potassium 1.203% -1.274 %, Available potassium 48.08 ~ 67.08 mg / kg, organic matter 2.627% ~ 3.171%.