A Detailed Explanation of the Latest Management Key Points for Early-Flowering Mango Trees
Because of prolonged drought in winter, or because temperatures are on the high side, mango trees are very prone to sending out flower spikes early before the Start of Spring, leading to premature flowering, and then around Qingming they are highly vulnerable to the threat of low temperatures and rainy days, which seriously affects pollination and fertilization, lowers the fruit-setting rate, and causes a reduction in yield. So how should early-flowering mango trees be managed? Follow the editor to learn more about it.
1. Removing flower spikes
Mango flower spikes have a strong ability to regrow. If they are removed promptly after emerging, they will generally emerge again within 7-10 days, and they will have more branches, shorter spikes, more female flowers, and later flowering, making fruit setting easier. Therefore, after mango trees send out flower spikes in January-February, when the spikes have grown to about 5-10 cm, remove them promptly from the base to encourage the trees to send out more short, clustered spikes with many female flowers, while also delaying flowering, which benefits the later yield.
2. Fertilizing and earthing up
After removing the flower spikes, fertilize promptly to provide sufficient nutrients for the trees to send out new flower spikes. At this time, fertilization should focus mainly on organic fertilizer and high-efficiency phosphorus and potassium fertilizer. Generally, for trees more than ten years old, apply 25-30 kg of decomposed farmyard manure, 3-4 kg of superphosphate, and 1-2 kg of potassium chloride or potassium sulfate per tree. It can be applied by the ring-ditch method: mix all fertilizers thoroughly and evenly, apply them into the ring ditch, then cover with soil. At the same time, drench each tree with about 80 kg of clean water or decomposed and rotted human and livestock manure water to promote the dissolution and transformation of fertilizers and improve fertilizer use efficiency. After fertilizing, earth up with garbage compost, pond mud, burned soil, or other miscellaneous soil fertilizers, and at the same time cover the tree disk with rice straw or other weeds, which can stabilize and raise soil temperature and promote flower spike development.
3. Preventing and controlling pests and diseases
On early-flowering mango trees, pests and diseases occur especially early, so prevention and control must also be early to protect the flower spikes. After removing the flower spikes, spray a mixture of Anlubao and Shibaoke, or a mixture of Disha and Shibagong, once every 10-15 days inside and outside the canopy, for 2-3 consecutive sprays, evenly spraying all leaves, with the leaves dripping water as the appropriate standard.
4. Spraying foliar fertilizer
After removing the flower spikes, spray foliar fertilizer once every 7-10 days. You can use a mixture of 0.2% urea, 0.3% monopotassium phosphate, and 1500x Shennongsu chelated fertilizer, or a mixture of 0.2% urea, 500x high-efficiency biological phosphorus and potassium fertilizer, and 1000x Zhuangfengyou, for 3-5 consecutive sprays. This can promote robust flower spike growth, improve flower quality, and help increase the flowering and fruit-setting rate.
The above are the management key points for early-flowering mango trees. We hope this helps you. To learn more related knowledge, please keep following us.