Measures for removing acid and increasing sweetness of citrus

In citrus production, many farmers want their oranges to have high sweetness, and the sweetness of oranges is due to the accumulation of sugar, but if the fruit is not sweet all the time, it not only depends on the sugar content, because the citrus also contains organic acids. so what can citrus do to remove acidity and increase sweetness? Come and have a look with the editor.

1. Increase the application of organic fertilizer

According to the experimental investigation, it is found that some varieties with high sweetness will cause higher acidity and lower flavor in summer due to the application of a large amount of chemical fertilizer, which are all caused by the partial application of chemical fertilizer, because nitrogen can promote vegetative growth and inhibit reproductive growth. resulting in delayed fruit coloring, dim color, too much potassium in leaves, picking fruit acidity and weakening flavor. The application of more organic fertilizer in citrus production can not only meet the needs of growth, but also supplement a variety of medium and trace elements, improve soil acidity, improve fertilizer use efficiency, increase soil fertility and increase sweetness.

2. Early application of base fertilizer

Many fruit growers are used to applying base fertilizer in winter. if base fertilizer is applied in autumn after picking, then the early base fertilizer is very easy to be fermented and decomposed, which is easy to be similar to the tree, which is beneficial to the decomposition and thinning of organic fertilizer in winter and spring. As a result, citrus can send out new roots in time, which is beneficial to the growth of the following year, because the supply of nutrients needed for flower bud differentiation and early flowering and fruiting of citrus trees can promote flower bud differentiation, prevent flower and fruit drop, and significantly improve the yield and quality of citrus fruit.

3. increase the application of calcium fertilizer

It has been proved that the acidity of citrus is closely related to the content of calcium in soil. The acidity of citrus with high content of calcium is relatively low, and vice versa. The soil in the south is sour, the pH value is between 5 and 6, and the soil is generally deficient in calcium. Therefore, lime bee calcium fertilizer should be applied in time, which can not only effectively supplement the calcium content in the soil, but also supplement the calcium needed for citrus growth. Generally, 50-60 kg of lime is applied to the soil to reduce the acidity of the soil, increase the accumulation of sugar and increase the sweetness.

4. Reasonable spraying of foliar fertilizer

During the fruiting period, a mixture of 0.2% calcium dihydrogen phosphate and 0.2% sodium dihydrogen phosphate should be sprayed 2-3 times, which can not only increase sweetness, but also increase the storability of citrus. Sometimes farmers also apply sweeteners, that is, adding 200 grams of boron fertilizer containing pure boron, 2.4 percent sucrose, and 0.7 grams of calcium chloride to 700 kilograms of water, which is dissolved as a "sweetener." Spraying it on the leaves can significantly increase the sweetness of citrus.

The above is the introduction of citrus acid removal and sweetening measures, hope to help you, want to know more related knowledge, please follow us.