杉木幼林施用不同品种磷肥的肥效研究 |
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引用本文: | 龚臻祺. 杉木幼林施用不同品种磷肥的肥效研究[J]. 福建林业科技, 1996, 23(4): 55-58 |
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作者姓名: | 龚臻祺 |
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作者单位: | 顺昌县林业科技推广中心 |
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基金项目: | “八五”国家科技攻关课题 |
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摘 要: | 1992-1995年,对杉木幼林施用不同品种磷肥的肥效反应进行了研究。结果表明:(1)磷肥施用第一年末,开始出现肥效,磷酸氢二铵、钙镁磷肥的肥效较高,过磷酸钙和磷矿粉肥效不明显;第二年末,肥效反应最大;施肥第3年末,不同磷肥品种肥效都开始下降;施肥后第四年磷肥肥效比前一年明显下降;(2)不同品种磷肥对杉木幼林地径、树高和冠幅影响很不一致,磷肥对地径、胸径的增长普遍有效;(3)在立地指数为18的肥沃土壤施用磷肥作用不大。
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关 键 词: | 杉木幼林;磷肥;肥效 |
Studies on the Effect of Different Varieties of Phosphate Fertilizers on Young Forests of Cunninghamia lanceolata |
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Abstract: | From 1992 to 1995,studies were conducted on the effect of different varieties of phosphate fertiliz-ers applied to young forests of Cunninghamia lanceolata. The results showed that the fertilizer effect startedto arise at the end of the first year of the phosphate fertilizer application:it was maximal at the end of thesecond year:it started to reduce at the end of the third year and the phosphate fertilizers had an effect on theincrease of the ground diameter and dbh. |
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Keywords: | Young forest of Cunninghamia lanceolata:phosphate fertilizer:fertilizer effect |
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