论文部分内容阅读
稀土元素是化学元素周期表中的镧系元素,含镧、铈、镨……镥, 与性质相似的钪、钆等十七种元素的氧化物其含量38.71%。在矿物中产生,较难分离。据有关报导,稀土元素应用于一些农作物中,有增产提高品质的效应,但对其应用于茶树方面的效益尚不明确,报导亦不多。为了探索稀土微肥对促进茶树生长,提高产量和品质,找出适合茶树生长的喷施浓度、
The rare earth elements are the lanthanides in the periodic table of the chemical elements, containing lanthanum, cerium, praseodymium ... ... 镥, and the content of the oxides of seventeen kinds of elements such as scandium and gadolinium with similar properties is 38.71%. Produced in minerals, more difficult to separate. According to reports, rare earth elements used in some crops, yield increase the quality of the effect, but its application to the benefits of tea is still not clear, there are not many reports. In order to explore the rare earth fertilizer to promote the growth of tea trees, improve yield and quality, find suitable for the growth of tea plant spray concentration,