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近年来,稀土在工农业生产上应用日益广泛,如何充分利用我国这一丰富自然资源为四个现代化服务,是值得研究的。本试验的目的在于探讨茶树不同生育期内使用不同浓度的稀土对产量及品质的影响。为茶园施用稀土提供依据。一、试验设计供试材料:选用七八年台刈后生长一致的群体品种。成土母原为四纪红土,pH值5.2,中等肥力水平,喷施河南商丘冶炼化工厂生产的硝酸稀土。
In recent years, the application of rare earth in industrial and agricultural production is becoming more and more widespread. How to make full use of our rich natural resources to serve the four modernizations is worth studying. The purpose of this experiment is to investigate the effects of using different concentrations of rare earths on the yield and quality of tea trees at different growth stages. Provide the basis for the use of rare earth tea plantation. First, the experimental design test materials: selection of seven or eight years after the growth of Taiwan Mowed groups of varieties. Into the original mother of four-age laterite, pH 5.2, medium fertility level, spray Henan Shangqiu smelter chemical plant production of rare earth nitrate.