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作 者:张文 符传良 吉清妹 谢良商 刘国彪 吴宇佳 张治礼
机构地区:[1]海南省农科院农作物遗传育种重点实验室,海南海口571100
出 处:《广东农业科学》2012年第19期67-70,共4页Guangdong Agricultural Sciences
基 金:海南省科技厅科学事业费项目(琼财预[2010]139号);国际植物营养研究所(IPNI)基金(Hainan200801)
摘 要:对海南主要芒果栽培品种台农进行平衡施肥研究。结果表明,在习惯施肥基础上增施钾肥、镁肥,芒果增产12.2%~23.7%,提高经济效益12799.2元/hm2;芒果平衡施肥推荐量为N—P205-K2O-MgO=360—255—285—57kg/hm2。增施钾肥、镁肥提高了芒果果实含糖量、降低了总酸含量、提高了糖酸比;平衡施肥芒果果实氮磷钾含量相对较高;每月动态芒果叶片养分分析表明,平衡施肥芒果叶片氮钾含量高于空白对照,磷含量相差不大。A balanced fertilization field experiment was conducted with Tainong Mango that is the major varieties in Hannan. The results showed that compare with the conventional fertilization, increasing potash and magnesium fertilizer could improve mango production by 12.2%-23.7% and economic efficiency 12 799.2 yuan/hm2. Mango balanced fertilization of N, PzOs, KzO and MgO was recommended 360, 255, 285 and 57 kg/hm2 respectively. Increasing potash and magnesium fertilizer could improve mango fruit sugar content, reduce the total acid content and improve sugar acid ratio. Nitrogen, phosphorus and potassium content of balanced fertilization in mango fruit were higher than the control experiment; dynamically nitrogen and potassium content of monthly mango leaf were higher than the control experiment, but phosphorus content was not difference.
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