Key points of coloring period Management of Sugar Orange

Sugar orange is a popular variety of citrus, its juice is rich and sweet, and when sugar orange enters the coloring period, management is very important, which is related to its quality and commodity value. So how to manage the coloring period of sugar orange? 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 pre-harvest fruit drop. The foliar fertilizer of potassium dihydrogen phosphate and 0.01% Daguangfufengsu can be sprayed at the beginning of the coloring period, and the fruit is sprayed every 10 days every 10 days, continuously for 2-3 times, with obvious yield and quality effect.

2. strengthen the prevention and control of diseases and insect pests

In the sugar orange coloring period, the main diseases are anthracnose, scab and stem rot, while the main pests are red spiders, night moths, stink bugs, these diseases and insect pests will cause preharvest fruit drop, causing a great threat to yield. Corresponding agents can be used for spraying, but attention should be paid to the concentration and alternate use of agents to avoid drug resistance. In addition, spray should be stopped one month before fruit picking, so as not to cause drug residues and endanger human health.

3. Increase the application of organic fertilizer

In the sugar orange coloring period, fertilizer should be paid attention to at this time, it is not appropriate to apply excessive fertilizer, so as not to cause excessive vegetative growth, which is extremely disadvantageous to fruit coloring. The correct fertilization method should be mainly organic fertilizer, with an appropriate amount of trace elements to promote fruit coloring and tree nutrition accumulation, generally according to the yield calculation, high-yielding trees of more than 5 years, apply 100 kg of cake fertilizer, 200 kg of farm manure, 50 kg of calcium superphosphate per mu, stack them together in fertilization, and apply them after full maturity.

4. Cutting roots to promote flowers

Starting from the middle of November, the whole garden should be reclaimed, the roots should be properly exposed, the soil can be turned over with a hoe, and the soil should be hoed shallowly near the tree trunk. When it comes to the thick root, it is necessary to stop turning the soil forcefully at a distance of 15-20 cm from the tree trunk, and let the soil be exposed for a period of time. At the same time, it is appropriate to properly control Shufen so that the plant has a little curl 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 follow us.