【摘要】 探讨了海南秋芒与鸡蛋芒2个芒果品种的叶片营养成分含量变化的规律。结果表明:在海南,芒果叶片中大量元素的含量变化,既与季节有关,也与芒果品种有关,如鸡蛋芒的养分含量在3～5月、而秋芒则在5 ～7月(即中果期-果实成熟期)较为稳定。因此,海南这2个品种芒果叶片营养诊断适宜的采样时期也就不同,鸡蛋芒在5月,秋芒在7月,即在这2个品种各自的采果后1个月左右。叶片养分质量分数参考性指标为:N1.10% ～1.60%,P0.10% ～0.16%,K0.46% ～0.70%,Ca1.90% ～2.80%,Mg0.18% ～0.26%。更多还原

【Abstract】 Foliar nutrition law of two mango cultivars(Qiu and Jidan)in Hainan was studied.The results showed that the foliar macronutrients varied seasonally.Jidan mango and Qiu mango’s nutrients were relatively stable respectively,from March to May and May to July.Therefore,May and July were suitable exampling time for Jidan and Qiu,respectively.The foliar nutrient indexes were N1.10%～1.60%,P0.10%～0.16%,K0.46%～0.70%,Ca 1.90%～2.80%,Mg 0.18%～0.26%.更多还原