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| 温度对黑土磷形态及有效性影响 | |
| 引用本文： | 邱兰兰,石元亮,任军.温度对黑土磷形态及有效性影响[J].土壤通报,2007,38(6):1114-1117. |
| 作者姓名： | 邱兰兰 石元亮 任军 |
| 作者单位： | 1. 中国科学院,沈阳应用生态所,辽宁,沈阳,110016;中国科学院,研究生院,北京,100049 2. 中国科学院,沈阳应用生态所,辽宁,沈阳,110016 3. 吉林省农科院,吉林,公主岭,136100 |
| 基金项目： | 国家科技部粮食丰产工程-吉林玉米丰产工程 |
| 摘 要： | 试验研究了不同温度对黑土磷形态及有效性的影响,结果显示:不施磷和施磷情况下,Ca2-P、Ca8-P、Fe-P含量均随温度的升高而增加;Al-P含量则随温度升高而减少;Olsen-P的含量,在不施磷时随温度升高而增加,且30℃时效果要明显好于10℃和20℃,施磷时,则随温度升高而减少。不施磷情况下,有效磷和各形态的无机磷含量均随培养时间的延长而增加;施磷时,除Ca8-P含量增加外,其它各形态磷均随培养时间延长而减少。通过相关分析和回归分析得出,黑土中磷的主要组分是Al-P和Ca2-P,并得出了它们与Olsen-P的回归方程:Y=-0.958+0.675X(1 Ca2-P)+0.286X(3 Al-P)。 |
| 关 键 词： | Olsen-P 温度 无机磷 有效性 |
| 文章编号： | 0564-3945(2007)06-1114-04 |
| 修稿时间： | 2006年9月1日 |
Effects of Temperature on Components and Bioavailability of Phosphorus in Black Soil |
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| QIU Lan-lan,SHI Yuan-liang,REN Jun.Effects of Temperature on Components and Bioavailability of Phosphorus in Black Soil[J].Chinese Journal of Soil Science,2007,38(6):1114-1117. | |
| Authors: | QIU Lan-lan SHI Yuan-liang REN Jun |
| Abstract: | The results obtained from incubation experiments showed that the amount of Ca2-P,Ca8-P and Fe-P could increase with the temperature increasing,whereas Al-P was just opposite.The amount of Olsen-P in no P treatments increased with temperature,but decreased in P applied treatments.Availible phosphorus and its components were affected by incubation time.In no P applied treatments,phosphorus components could increase along with the incubation time,except for Ca8-P.Available phosphates extracted with Olsen's method mainly were Ca2-P and Al-P in black soils.The equation between Olsen-P and another factors was: Y=-0.958 0.675X1(Ca2-P) 0.286X3(Al-P). |
| Keywords: | Olsen-P |
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