How to use iron fertilizer?

Which crops are prone to iron deficiency? How many ways to apply iron fertilizer? How to use iron fertilizer has a good effect? The following farming help planting network is briefly introduced for netizens' reference. Iron-sensitive crops include soybean, sorghum, sugar beet, spinach, tomato, apple and so on. In general, iron deficiency is rarely seen in Gramineae and other crops, while iron deficiency in fruit trees is more common. At present, the most commonly used iron fertilizer in agricultural production is ferrous sulfate, which is generally applied by extra-root topdressing method. The concentration of iron fertilizer sprayed on the leaf is 0.2%-1%. General fruit trees spray 0.75% 0.1% ferrous sulfate before sprouting or 0.5% ferrous sulfate plus 0.5% urea three times after seeing yellow leaves. Ferrous sulfate and organic fertilizer can also be mixed at the ratio of 1: 10: 20 and applied under fruit trees to make 70% iron deficiency green. High-pressure injection is also an effective iron application method for fruit trees, that is, 0.3%-0.5% ferrous sulfate solution is injected directly into the xylem of the trunk, and then transported to the desired part with the liquid flow. When the fruit trees were yellowed due to iron deficiency, the diseased leaves were only speckled green, and the new leaves were still yellowed, and the effect was poor. If urea and citric acid are added to the iron fertilizer solution, good results will be obtained. The preparation method of the solution is as follows: 25 grams of citric acid is added to 50 kilograms of water, 125 grams of ferrous sulfate is added after dissolution, and 50 grams of urea is added after ferrous sulfate is dissolved, that is, a compound iron fertilizer of 0.25% ferrous sulfate, 0.05% citric acid and 0.1% urea is prepared. The above is the farming help planting network to introduce the use of iron fertilizer, if you have a better supplement, please leave a message below to let us know.