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.
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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. Guo Bihua, Yu Guifen, Wei Chaofu, Che Fucai, Gao Ming. AGROCHEMICAL BEHAVIOR OF K-AND-SI-RICH COMPOUNDS[J]. Soils,2003,35(1):69-72