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| 富钾硅复合物的农业化学行为研究 | |
| 引用本文： | 郭碧花,余贵芬,魏朝富,车福才,高明. 富钾硅复合物的农业化学行为研究[J]. 土壤, 2003, 35(1): 69-72 |
| 作者姓名： | 郭碧花 余贵芬 魏朝富 车福才 高明 |
| 作者单位： | 1. 四川师范学院生物系,南充,637002 2. 中国科学院南京土壤研究所,南京,210008 3. 西南农业大学资源环境学院,重庆,400716 |
| 摘 要： | 富钾硅复合物中硅、钾、钙、镁养分的可溶性含量很高,但其有效态的养分含量却相对较低,故其养分只能缓慢地释放出来。在5个月的贮存过程中,多元复合物的水分含量对其养分的有效性没有明显的影响,但其养分含量却经历了一个明显的变化过程,其中可以用Freundlich方程拟合钾、镁的变化规律。多元复合物中硅、钾、钙、镁4种养分元素的释放速率随时间的延长而逐渐下降。 |
| 关 键 词： | 多元复合物 有效K 有效Mg 有效Si 有效 |
AGROCHEMICAL BEHAVIOR OF K-AND-SI-RICH COMPOUNDS |
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| Guo Bihu,Yu Guifen,Wei Chaofu,Che Fucai and Gao Ming. AGROCHEMICAL BEHAVIOR OF K-AND-SI-RICH COMPOUNDS[J]. Soils, 2003, 35(1): 69-72 | |
| Authors: | Guo Bihu Yu Guifen Wei Chaofu Che Fucai Gao Ming |
| Affiliation: | Guo Bihua1 Yu Guifen2 Wei Chaofu3 Che Fucai 3 Gao Ming3 |
| Abstract: | In spite of its high content of citric acid soluble nutrient ingredients, the K-and-Si-rich compound is low in available nutrient. Its high content of nutrients will only be released slowly. During its five-month storage, its moisture content did not seem to affect availability of its nutrients, but its nutrient content changed significantly. Kinetics of the change in K and Mg could be simulated with Freundlich equation. Among the multi-elements of the compound, Si, K, Ca and Mg gradually decreased in releasing rate with the time passing by. |
| Keywords: | Multiple nutrient fertilizer Available Mg Available Si Available Ca Available K Release |
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