The latest sugar orange coloring period management points

Sugar orange is a popular variety of citrus, its juice is sweet, and when sugar orange enters the coloring period, management is extremely important, which is related to its quality and commodity value. So how should the coloring period of granulated orange be managed? Let's take a look.

1. Spraying foliar fertilizer

In order to increase the weight of single fruit, promote fruit coloring, increase fruit sweetness, improve quality, but also to prevent the occurrence of pre-harvest fruit drop phenomenon. Potassium dihydrogen phosphate foliar fertilizer and 0.01% Daguangtianfengsu can be sprayed at the beginning of the coloring period, once every 10 days when the fruit just turns color, continuously sprayed for 2-3 times, the effect of increasing yield and quality is obvious.

2. Strengthen pest control

Anthracnose, scab and stem rot were the main diseases in the coloring stage of granulated orange, while red spider, moth and stink bug were the main pests, which caused fruit drop before harvest and posed a great threat to the yield. You can use the corresponding agent for spraying, but pay attention to the concentration of the agent and the alternate use of the agent to avoid drug resistance. In addition, you should stop spraying one month before fruit picking to avoid causing drug residues and endangering human health.

3, increase the application of organic fertilizer

In the sugar orange coloring period, fertilization should be noted at this time, it is not appropriate to apply excessive fertilizer, so as not to cause excessive nutrient growth, which is extremely unfavorable for fruit coloring. The correct fertilization method should be mainly organic fertilizer, appropriate amount of trace elements, promote fruit coloring and tree nutrient accumulation, generally according to the yield calculation, more than 5 years of high-yield trees, apply 100 kg cake fertilizer, 200 kg farm manure, 50 kg calcium superphosphate per mu, pile them together in fertilization, fully decomposed before application.

4. Root cutting and flower promotion

From the middle of November, the whole garden should be cultivated, the roots should be exposed properly, the soil can be turned over with hoe, the soil application should be shallow near the trunk, and the forced soil turning should be stopped immediately when the thick roots are reached. The distance from the trunk should be 15-20 cm. After hoeing, the soil should not be broken, and it should be exposed to the sun for a period of time. At the same time, it is appropriate to properly control the fragrance to make the plants curl slightly in sunny days.

The above is about sugar orange coloring period management points introduction, hope to help you, want to know more related knowledge, please pay attention to us.