What is the best fertilizer for pineapples?

Pineapple Fertilization Time

1. After loosening the soil of the pineapple, apply organic fertilizer and complete nitrogen, phosphorus and potassium fertilizer, and then apply fertilizer every 15-20 days. At the same time, spray 0.2% urea, 0.3% potassium dihydrogen phosphate, and 0.1% magnesium sulfate mixture on the leaves every 10 to 15 days. Spray 2 to 3 times in succession to evenly wet all the leaves.

2. The pineapple seedling strengthening fertilizer should be applied during the 12-14 months of nutritional growth of the autumn planted seedlings. In addition to the base fertilizer, top dressing is required 2-3 times, including 1 month before the differentiation of pineapple flower buds, from the end of the year before budding to the early spring of the following year, after flowering, and after fruit harvesting.

What fertilizer to use for pineapple

Pineapples need nitrogen and potassium when fertilizing. As the growth period progresses, the ratio of phosphorus and potassium increases, especially potassium, which is needed in large quantities. Nitrogen is the main fertilizer for seedlings and buds, combined with phosphorus and potassium fertilizers to increase the number of florets and fruit weight. Flower bud differentiation fertilizer, bud fertilizer and fruit germination fertilizer should be mainly potassium fertilizer, combined with nitrogen and phosphorus fertilizers.

How to fertilize pineapple

1. The base fertilizer of pineapple needs to be applied with an appropriate amount of chemical phosphorus and potassium fertilizers, which can be applied into the ditch before planting the seedlings. When applying the monthly fertilizer, first dig a fertilizer ditch at the base or between the rows, and apply 40-50 kg of balanced fertilizer per mu, and cultivate the soil immediately after application.

2. For pineapple bud-strengthening fertilizer, use Hankefeng macronutrient fertilizer (high phosphorus) to flush or drench the roots to promote the growth of sucker buds. Pre-flowering fertilizer should be applied one month before flower bud differentiation, with 2-2.5 kg of manure per plant and 20-30 g of Hankefeng macronutrient fertilizer to promote flower bud differentiation, increase the number of florets and enhance the plant's cold resistance.

3. For pineapple bud-promoting fertilizer, it is applied in January by digging trenches. It should be mainly potassium and phosphorus fertilizers, mixed with half farmyard manure. Apply 0.8-1 kg of Xinjue high-phosphorus water-soluble fertilizer to each plant to promote the enlargement of flower buds.

Precautions for fertilizing pineapple

When fertilizing pineapples before flowering, organic zinc and organic boron need to be supplemented to meet the two important elements needed by flower buds, prevent flowers and fruits from falling, and promote fruit enlargement.