How to apply early fertilizer for mango flowers scientifically
After mango flower panicles are damaged by pests and diseases, the panicles become deformed, flower quality declines, buds drop, and flowers wither, making it impossible to bloom and bear fruit. The control methods for pests and diseases harming mango flower panicles are as follows: 1. Anthracnose. Anthracnose is the most serious disease harming flower panicles, and it can develop as soon as the panicles just emerge, first appearing as black...
Due to reasons such as winter drought and relatively high temperatures, mango trees often have early flower bud development, producing panicles ahead of time and forming early flowers. Early-flowering mango trees have long panicles, a large number of flowers, and high nutrient consumption, and they bloom early, making them prone to poor pollination and fertilization due to low-temperature rainy weather, ultimately resulting in a low fruit-setting rate. If flower-strengthening fertilizer is applied early and heavily to raise the nutrient level of early-flowering mango trees, promote a strong tree vigor, and enhance the panicles' ability to withstand low-temperature rainy weather, the early-flowering mango trees can pollinate and fertilize normally and increase the fruit-setting rate.
The specific fertilization method is as follows:
In winter and spring, pay attention to observing the autumn shoots of mango trees. When flower buds are found to be sprouting at the tips of autumn shoots before "Lichun" (Beginning of Spring), flower-strengthening fertilizer should be applied immediately, mainly with high-quality organic fertilizer and a complete nitrogen-phosphorus-potassium fertilizer, while appropriately supplementing phosphorus and potassium fertilizer. For bearing trees over 5 years old, apply 45~50 kg of decomposed and rotted human, livestock, and poultry manure per tree, 1.5~2 kg of nitrogen-phosphorus-potassium (15-15-15) compound fertilizer, 3~4 kg of superphosphate or calcium magnesium phosphate fertilizer, and 1~1.5 kg of potassium chloride or potassium sulfate. The specific fertilization method is to dig 6~8 radial trenches under the canopy in the surface soil, 15~20 cm deep, 25~30 cm wide, and 80~100 cm long, fully stir and mix all the fertilizers evenly, spread them in the radial trenches, and cover with soil.
In addition, spray the foliage once every 10~15 days with a mixed solution of 0.1% borax, 0.1% magnesium sulfate, 0.2% urea, 0.2% monopotassium phosphate, and 800-times nucleotide active liquid fertilizer, spraying continuously 3~5 times, evenly wetting all branches, leaves, and flower buds inside and outside the canopy, until water droplets begin to drip down. This supplements nutrients through the foliage, raises the plant's nutrient level, and helps strengthen the panicles.
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