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砂仁植株三要素分析
何振兴; 何贵光;   
广西药用植物园
摘要:
从上表可看出,砂仁体内养分以钾含量最高,占58.42—79.04%,其次为氮,磷最少。因此认为,砂仁施肥应氮磷钾互相配合施用,并适当增加钾的用量才好。目前在生产中调查发现有些砂仁种植场由于盲目大量施用尿素,导致植株徒长,开花结果少,这是砂仁体内营养比例失调的缘故;反之,有不少砂仁种植场在施用氮磷肥的基础上,手秋冬间每亩增施100—200担火烧土,不但为砂仁提供大量钾素,此外还起着培土的作用,既能防旱,又可防寒保暖,保护根茎越冬,这样往往获得不同程度的高产。
关键词:  比例失调  火烧土  氮磷肥  植株徒长  钾素  体内养分  上表  磷钾  防寒保暖  地上茎叶  
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