Pineapple causal leaves are like pineapples, and the flesh smells like pears, so it is also called pineapple. It is an important fruit in southern my country. Pineapple is native to Brazil in the tropical region of South America. It has strong adaptability to the environment, but is more adapted to a warm and humid climate. It is fertile and loose, with a deep soil layer and soil with an organic matter content of more than 2%. Pineapple is a perennial herb with no dormancy period and can grow on an annual basis. It is a fruit with high benefits.

During the growth of pineapple, more nitrogen fertilizer and potassium fertilizer, some calcium fertilizer and a little phosphate fertilizer are needed. After each harvest, proper fertilizers must be given to ensure stable yield. For pineapple planting, sufficient base fertilizer should be applied. The base fertilizer is generally applied with 2-3 kg of biological organic fertilizer, with 100 g of urea and 50 g of potassium sulfate.

Pineapple is generally top-dressed three times a year, the first time is the bud-promoting fertilizer around January, and the plant is applied with 2--3 kg of biological organic fertilizer. The second time is the sprouting fertilizer for strong fruit from April to May, with 3--5 kg of bio-organic fertilizer applied. The third time is the strong bud fertilizer. After the fruit is picked from July to August, 5--8 kg of bio-organic fertilizer is applied to restore tree vigor, improve leaf function, and promote flower bud differentiation. But two months before flower bud induction, fertilization must be stopped, otherwise flowering will be delayed.