Ecological liquid microelement fertilizer prepared from rare earth, and preparation method thereof

The invention relates to an ecological liquid microelement fertilizer prepared from rare earth, and a preparation method thereof. The ecological liquid microelement fertilizer comprises, by weight, 10-20 parts of rare earth borate, 1-4 parts of zinc sulfate, 1-4 parts of ammonium molybdate, 1-4 parts of calcium sulfate, 1-4 parts of manganese sulfate, 1-4 parts of magnesium sulfate, 2-6 parts of copper sulfate, 8-15 parts of ferrous sulfate, 1-4 parts of potassium dihydrogen phosphate, 1-4 parts of calcium dihydrogen phosphate, 4-8 parts of urea and 40-60 parts of distilled water. The preparation method comprises the following steps: 1) the rare earth borate, zinc sulfate, calcium sulfate, manganese sulfate, magnesium sulfate and copper sulfate are mixed, and then are dissolved in the distilled water; and 2) the ammonium molybdate, ferrous sulfate, potassium dihydrogen phosphate, calcium dihydrogen phosphate and urea are mixed, and then are dissolved in the distilled water. The ecological liquid microelement