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What precautions should be taken when applying rare earth micro-fertilizers in walnut orchards?
The content of rare earth elements in plants is very low, and the content varies greatly among different organs, generally distributed as: root > stem > leaf > flower > fruit and seed. About 80% of the rare earth elements absorbed by plants are concentrated in the roots. Applying rare earth micro-fertilizer to walnut trees can promote the root system's absorption of nitrogen, phosphorus, potassium and
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Are rare earth elements in tea harmful? And where do they come from?
A few years ago, most of the 10,000 boxes of tea MOU of Taipei Agricultural Products Marketing Corporation could not be fulfilled. Was it pesticide residue exceeding the standard? Or rare earth element content exceeding the standard? Chen Chi-chung, head of the Council of Agriculture, believes that the failure of the Taipei Agricultural Products Marketing Corporation tea MOU is related to China's unique rare earth element testing standard, not a pesticide problem.
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Feeding fish rare earth works well; fish farmers may want to give it a try
Rare earth refers to the collective term for the 17 metallic elements of the lanthanide series in the periodic table, including lanthanum, praseodymium, neodymium, cerium, samarium, and others. Among them, cerium accounts for 48%, lanthanum 25%, neodymium 16%, praseodymium 5%, samarium 2%, and the other 12 elements 4%. In recent years, rare earth has become an important resource for the national economy and national defense construction. It can not only be widely used as an industrial vitamin in metallurgy, machinery, petroleum, chemicals, light industry, electronics and other industries, but can also be used as a micro-fertilizer in agricultural production. In fishery production, feeding rare earth to fish also has very good results. According to experiments,
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Method for feeding rare earth-supplemented feed to broodstock and adult fish
Adding some rare earth in proportion to the bait fed to broodstock and adult fish can not only improve feed utilization, but also promote fish growth, enhance disease resistance, play a role in preventing and treating diseases, reduce fish deaths, and increase economic benefits. The preparation method for feeding broodstock is: use 40-50 grams of rare earth or 1 packet of rare earth additive, first dissolve it with a little vinegar or acid water, then add 0.5 kg of water, and evenly spray it onto 60 kg of concentrated feed with a sprayer, stirring while spraying. If conditions permit, it can be made into extruded feed for feeding, and the effect is even better.
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Spraying Enoki Mushrooms with Rare Earth Solution Promotes Growth
In the cultivation of enoki mushrooms (Flammulina velutipes), spraying a rare earth solution onto the mushroom beds (growing bags) can promote mycelial growth and increase the yield and quality of enoki mushrooms. The specific method is: spray once with the rare earth solution every 3 days, applying 500 milliliters per square meter of mushroom bed each time, while spraying clean water daily to maintain relative humidity; when the fruiting bodies grow to meet the standard...
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A rare wild herb in the mountains, its fruit is called "Heavenly Pearl" and its root is called "Earthly Pearl", hailed as the sacred medicine of Shennongjia
In the primeval forests of Shennongjia in our country, not only does the legend of the "wild man" circulate, but there are also countless rare plants of various kinds. Especially the many kinds of Chinese herbal medicines, many of which are rich in legendary color, such as Paris polyphylla, "a bowl of water by the river", "one pearl on top of the head", and so on. Their names are thunderous to the ear, yet many people have heard of them but never seen them. Today let us talk about this rare "one pearl on top of the head", whose fruit and root can both be used as medicine, with extremely high value, hailed as the "sacred medicine of Shennongjia".
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