期刊论文

中文

西北农林科技大学学报(自然科学版)

1671-9387

2013

41

4

155-160

10.13207/j.cnki.jnwafu.2013.04.013

国家林业局科技成果推广计划项目（[2010]44号）；

本校为其他机构

[目的]研究不同磷源对酸性红壤养分及油茶生长的影响,为油茶施肥提供参考。[方法]以油茶'湘林4号'为试材,以不施外源磷为对照,通过盆栽试验,研究无机难溶磷(Ca-P、Al-P和Fe-P)和有机磷源(O-P)对酸性红壤养分、油茶幼苗生长及树体营养水平的影响。[结果]不同磷源对酸性红壤养分含量的影响有差异,其中Fe-P显著提高土壤全磷含量,而Ca-P和Al-P则显著提高土壤有效磷含量;在根际土壤中,Ca-P和Al-P处理的有效磷含量较对照分别提高120倍和125倍。油茶根际与非根际土壤中的养分含量具有明显差异。Ca-P和Al-P明显提高了油茶苗高、地上部干质量和根系鲜质量,降低根冠比,而Fe-P和O-P的作用不明显。在土壤中添...

[Objective] This study aimed to improve phosphorus use efficiency when applied to oil-tea. [Method] The growth of Camellia oleifera ＇Xianglin 4＇ and nutrients content in acidic soils were tested in pot experiment with sparingly soluble and organic phosphates in compared with no exogenous phosphorus applied. [Result] The application of sparingly soluble and organic phosphates had distinct impact on the nutrients levels in acidic soil. Total phosphorus content was accumulated by Fe-P while the content of available phosphorus content was increas...