长期灌溉施肥对半干旱区褐土氮、磷和钾库的影响Ⅱ.对褐土农田土壤钾库的影响

生态学杂志 ›› 2004, Vol. ›› Issue (5): 19-23.

长期灌溉施肥对半干旱区褐土氮、磷和钾库的影响Ⅱ.对褐土农田土壤钾库的影响

郑昭佩^1,2, 宋德香², 刘作新¹

1. 中国科学院沈阳应用生态研究所, 沈阳, 110016;
2. 山东师范大学人口·资源与环境学院, 济南, 250014

收稿日期:2003-12-18 修回日期:2004-04-05 出版日期:2004-10-10
通讯作者: 郑昭佩,男,1971年生,博士,副教授.研究方向为土壤物理与农业生态,发表论文数篇.
基金资助:
辽宁省“十五”科技攻关重中之重(200121001);国家“863”计划节水农业重大专项(2002AA2Z4321)资助项目

Effect of long-term irrigation and fertilization on nitrogen,phosphorous,and potassium pools of cinnamon soil in semi-arid area ⅡEffect on potassium pool of cinnamon soil farmland

ZHENG Zhaopei^1,2, SONG Dexiang², LIU Zuoxin¹

1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
2. College of Population, Resource and Environment, Shandong Normal University, Jinan 250014, China

Received:2003-12-18 Revised:2004-04-05 Online:2004-10-10

摘要/Abstract

摘要： 采用二次通用旋转组合设计,在辽西半干旱区褐土上进行了长期田间试验,研究不同的灌水、施氮、施磷和施秸秆水平对土壤钾含量的影响。结果表明,土壤全钾含量随着氮、磷和秸秆施用量的增加而增加,随着灌水量的增加而降低,其中,施磷对土壤全钾含量的增加效果最明显,其次是施秸秆量。土壤速效钾含量随着灌水和氮、磷施用量的增加而降低,随着秸秆施用量的增加而增加,其中,施秸秆对土壤的速效钾含量影响最明显,其次是施用磷肥的影响。另外,施肥和灌水在提高土壤全钾含量的同时可能使速效钾含量降低,两者的变化表现为一定的负相关。

关键词: 五氯酚, 斑马鱼胚胎, 毒性效应

Abstract: With quadratic regression general rotation design,a long-term field experiment was carried out in semi-arid area of western Liaoning,to study the effects of irrigation and fertilization on soil potassium content.The results showed that soil total Kcontent increased with the increasing nitrogen,straw and phosphorus application,but decreased with the increasing quantum of water.The application of phosphorus had the most notable effect and the effect of straw was in the next place.Soil available K content decreased with the increasing water,nitrogen and phosphorus application,but increased with the increasing straw application.The application of straw had the most notable effect and the effect of phosphorus was in the next place.In addition,application of nitrogen and phosphorus may increase the content of soil total Kbut decrease the content of soil available K.The change of the two represented negative correlations.

Key words: Pentachlorophenol, Brachydanio rerio, Toxicity effect

中图分类号:

S158

郑昭佩, 宋德香, 刘作新. 长期灌溉施肥对半干旱区褐土氮、磷和钾库的影响Ⅱ.对褐土农田土壤钾库的影响[J]. 生态学杂志, 2004, (5): 19-23.

ZHENG Zhaopei, SONG Dexiang, LIU Zuoxin. Effect of long-term irrigation and fertilization on nitrogen,phosphorous,and potassium pools of cinnamon soil in semi-arid area ⅡEffect on potassium pool of cinnamon soil farmland[J]. cje, 2004, (5): 19-23.

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