The rules of Mn uptake by early and late rices at different growth stages in the paddy soil derived from red earth were studied based on the long-term stationary experiment of Hunan Agriculture University.

The results show thatphenol adsorption of the bamboo carbon accords with common adsorption law.

However,the wicking law of fabrics is quite different from capillary.

Studies on the development and the absorption regularity of P,K,Ca of Gladiolus hybridus;

Study of Zinc、Selenium Absorption Regularity of Spring Wheat and Their Enrichment Technology;

Study on absorption regulation of soil sulphur in rice;