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长期施肥对石灰性土壤磷素肥力的影响Ⅰ.有机质、全磷和速效磷
引用本文:谢林花,吕家珑,张一平,刘选卫,刘利花.长期施肥对石灰性土壤磷素肥力的影响Ⅰ.有机质、全磷和速效磷[J].应用生态学报,2004,15(5):787-789.
作者姓名:谢林花  吕家珑  张一平  刘选卫  刘利花
作者单位:1. 陕西科技大学皮革工程学院环境工程教研室,咸阳,712081
2. 西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室,杨凌,712100
基金项目:国家自然科学基金重大项目 ( 3 9790 10 0 ),教育部回国人员启动基金,陕西省自然基金资助项目 ( 2 0 0 2D0 9)
摘    要:在陕西关中黄土区连续23年进行了不同施肥、小麦-玉米轮作定位试验。研究了0~100cm土层土壤有机质、全磷、速效磷含量变化.结果表明,长期单施化肥或有机肥与化肥且配施均可增加耕层(0~20cm)土壤有机质含量.长期施用厩肥并配施化肥处理对土壤总磷库及无机磷库、速效磷的贡献大于玉米秸秆处理.长期单施化肥可增加土壤全磷、无机磷和速效磷含量,增加幅度低于厩肥和休闲处理,与秸秆处理对全磷、速效磷含量的影响效应相近.23年的不同施肥处理,与无肥处理相比,其理土壤磷素增量在0~100cm土壤剖面中的分布特点是:全磷增量剖面分布可为3层——耕层(0~20cm)为显著累积层,20~60cm土层为微增一亏损层,60~100cm土层为轻度累积层.速效磷增量剖面分布趋势与全磷增量分布趋势基本相同,仅在60~100cm土层累积较弱.

关 键 词:23年定位试验  石灰性土壤  土壤有机质  全磷  速效磷
文章编号:1001-9332(2004)05-0787-04
修稿时间:2002年10月10

Influence of long- term fertilization on phosphorus fertility of calcareous soil I.Organic matter,total phosphorus and available phosphorus
Linhua Xie,Jialong Lü,Yiping Zhang,Xuanwei Liu,Lihua Liu.Influence of long- term fertilization on phosphorus fertility of calcareous soil I.Organic matter,total phosphorus and available phosphorus[J].Chinese Journal of Applied Ecology,2004,15(5):787-789.
Authors:Linhua Xie  Jialong Lü  Yiping Zhang  Xuanwei Liu  Lihua Liu
Institution:Environmental Engineering Teaching and Research Section, Shannxi University of Science and Technology, Xianyang 712081, China. linhua-xie@163.net
Abstract:A 23 years-located experiment of wheat-corn rotation showed that long term application of animal manure combined with chemical fertilizer contributed greater to the contents of soil organic matter, total phosphorus, inorganic phosphorus and available phosphorus. Applying chemical fertilizer could increase soil organic matter, total phosphorus, inorganic phosphorus and available phosphorus contents, but the increment was lower than treatments animal manure and fallow. Compared with no fertilization, different fertilization treatment had its own distribution characteristics of soil organic matter, total phosphorus and available phosphorus in 0-100 cm soil layer.
Keywords:23 years-located experiment  Calcareous soil  Organic matter  Total phosphorus  Available phosphorus  
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