Preparation method of aquatic fertilizer Aquatic fertilizer is divided into bottom fertilizer (long-term fertilizer), root fertilizer, liquid fertilizer, iron fertilizer and plant hormones, and different fertilizers are used according to different uses. What method is used to prepare aquatic weed iron fertilizer? Now let's take a look at it with Guangdong Qikang Chemical!
Preparation method of iron fertilizer. Aquatic weeds can only absorb divalent iron, but divalent iron is easily oxidized into trivalent iron, in order to prevent the oxidation of iron, iron fertilizer must be formulated into chelated iron. Most of the chelating agents used are disodium EDTA-disodium edta, and diethylenetriamine pentaacetic acid (DTPA), hydroxyethyltethamine triacetic acid (HEEDTA), 1,2-cyclohexanediamine tetraacetic acid (CDTA), ethylenediamine (EDDHA) and so on can also be used. These organic compounds take iron ions as the core, wrapping them up to prevent oxidation of iron. The specific method for formulating molar/liter chelated iron fertilizer is described below:
The first step: 1000 ml of distilled water heated to 60 ~ 70 ° C, accurately weigh 37.7 grams of disodium EDTA in a triangular bottle, add about 600 ml of warm distilled water, stir until all melted, and then add the rest of the distilled water and stir evenly.
Step 2: Accurately weigh 27.8 grams of ferrous sulfate (chemically pure) and place it in another triangular bottle, add l000 ml of distilled water and stir well.
Step 3: Mix the above two solutions and stir evenly, that is, molar /liter chelated iron solution - iron fertilizer. The iron content in ferrous sulfate is 5.6 grams of iron in the 2000 ml iron fertilizer prepared according to the above method, which can be used for 28 cubic meters of water. Iron fertilizer should be stored in a sealed seal away from light.
The above information is compiled by Guangdong Qikang Chemical, if you need to reprint, please indicate the source.
![Add some ferrous sulfate to the flowers, the yellow leaves turn green, and new shoots sprout in the spring[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)