Red-flesh pomelo trees are typically not fertilized within the first month after planting. Once new growth reaches about 1-2 cm in length, you can start applying water and fertilizer every 10 to 15 days. For example, use 50 pounds of water per barrel. The recommended fertilizer application rate is 6 pounds of fertilizer per root area. Here are three options for fertilization:
(1) A mix of superphosphate (2 parts) and ammonium bicarbonate (4 parts).
(2) A compound fertilizer with an N-P-K ratio of 15:15:15 (5 parts).
(3) Diammonium phosphate (5 parts).
These three options can be used interchangeably depending on availability and soil conditions. With proper watering and fertilization every 10 to 15 days from February to November, a tree can grow faster than one that has been intensively managed for five years. By the third year, the tree should be ready for fruit production. If good management continues into the fourth year, the initial investment can be fully recovered or even turned into a profit. This method ensures healthy growth and long-term productivity, making it a cost-effective and efficient approach for red-flesh pomelo cultivation.
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