海南‘金煌’芒干物质及养分年积累量研究
Chinese Agricultural Science Bulletin(2011)
Abstract
研究海南‘金煌’芒果干物质及养分年积累量,为平衡施肥提供参考。通过采集‘金煌’芒不同器官干物质并进行养分分析,结果表明:(1)‘金煌’树体不同器官干物质年积累量顺序为:采收果>修剪叶>花及梗>修剪枝>落果;其中花及梗占17.17%、落果1.26%、修剪叶22.23%、修剪枝8.64%、采收果50.70%。(2)‘金煌’树体11种营养元素年积累量大小顺序为:N>K>Ca>P>Mg>S>Mn>Fe>Zn>B>Cu。(3)以生产1000kg‘金煌’芒计,树体养分需求为:干物质464.68kg、N5.46kg、P0.57kg、K4.62kg、Ca2.69kg、Mg0.40kg、S0.33kg、Fe51.62g、Mn158.84g、Cu2.90g、Zn9.43g、B7.26g。
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Key words
nutrient,' Jinhuang ',dry matter,annual accumulation,Hainan
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