Period of fertilization and what fertilizer to use for pineapples

Period of fertilization and what fertilizer to use for pineapples

Pineapples generally take 15 to 18 months from planting to fruit harvesting. It is important that you take into account the different nutrients required during each reproductive period and fertilize according to its fertilizer needs.

I. What fertilizer should be used for pineapple fertilization

The pineapple needs different fertilizers of nitrogen, phosphorus and potassium for each period of its growth and development. In general, from planting to bud differentiation, the ratio of nitrogen, phosphorus and potassium is 17:10:23, with nitrogen and potassium dominating, and potassium dominating after buds are drawn.

In addition to the requirement to apply sufficient base fertilizer at planting, the fertilizer must be applied reasonably throughout the reproductive process according to the needs of each period.

The actual pineapple fertilization period has four times

1. Plant fertilization

The pineapple is fertilized during the nutritional growth stage after planting and before flower bud differentiation.

The principle of fertilization: nitrogen fertilizer first heavy and then light, potassium fertilizer first light and then heavy. The purpose is to promote the loss of nutrient organs at the beginning of the planting cabinet, and to make the plant fully accumulate carbohydrates before the flower bud differentiation, in order to facilitate the formation of flower buds.

In addition, you can also carry out 2-3 times of extra-root fertilization.

2. Fertilizer for flowers and buds

Potassium fertilizer is the main fertilizer, with the right amount of nitrogen fertilizer. Generally, it is applied one month before the differentiation of flower buds in order to lay the foundation for improving yield.

Around late February before and after the flower buds, should again open a furrow fertilizer, fertilizer amount of 0.5kg of organic fertilizer per plant, 30kg of nitrogen, potassium mixed fertilizer or compound fertilizer, to promote the buds after the strong growth.

3, the fruit to promote the flower fertilizer

After the pineapple flowers are thanked, the fruit turns into the rapid growth and expansion period, and various buds are drawn out one after another, which is supplemented with more potassium fertilizer and appropriate amount of nitrogen fertilizer to make the fruit grow and develop normally, improve the quality, and promote the vigorous growth of various buds.

In addition to inter-root fertilization, 0.1% urea plus 1% potassium sulfate can also be used for extra-root fertilization. It has obvious effect on improving the fruit quality.

4、Budding fertilizer

After the fruit harvest, reapply bud fertilizer, the amount of fertilizer for the whole year 40-50%, the yield of the following year's results of the mother plant and the right decisive significance.

Commonly used high-quality organic fertilizer, potassium fertilizer mixed with open furrow application to accelerate the growth of sucking buds. It can also be fertilized outside the root once a month.

The pineapple can be fertilized outside the root because it is not easy to inter-root chasing.