T/BTSFLXH 001-2024 Fertilizer rare earth compounds - Part Ⅰ: Inorganic compounds

Scope

Scope: This document specifies the classification, technical requirements, test methods, inspection rules and marking, packaging, transportation, storage, and accompanying documents of agricultural rare earth compounds—Part I: Inorganic Compounds. There are 17 rare earth elements that can be used to prepare agricultural rare earth compounds, and there are no compounding or coupling reactions between these 17 elements. Considering production costs, lanthanum, cerium, or lanthanum-cerium mixtures are mainly used. This document applies to nitrate rare earths, chloride rare earths, and sulfate rare earth products dominated by lanthanum and cerium, with molecular formulas of RE(NO3)3·6H2O, RECl3·7H2O, and RE2(SO4)3·4H2O, respectively. They are used in various crops such as grains, oilseeds, sugar crops, vegetables, fruit trees, flowers, tobacco, tea, and rubber, as well as for pasture and forestry planting. Rare earths can promote the absorption of phosphorus by crops, enhance the activity of phosphatase, increase chlorophyll content, and promote the development of tissues, thereby promoting crop germination and rooting. The method of using this product in agriculture is described in Appendix A. Main technical content: This standard follows the requirements of the agricultural rare earth compound production industry, addresses the lack of standards for agricultural rare earth compounds, fills the gaps in agricultural rare earth compound standards, and standardizes the use of agricultural rare earth compounds in agricultural production, providing technical support for the development of China's agricultural rare earth compound industry. The application of rare earth elements in the agricultural field has shown many positive effects. Rational application can help improve the yield and quality of agricultural products and improve soil environment. At the same time, the inhibitory effect of rare earth elements on diseases and their ability to enhance crop resistance furthe

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