Tips for planting pineapple heads 1. How to plant pineapple heads correctly?

Cultivation techniques of pineapple

First, build a garden

1. Choose the southeast or south slope with convenient transportation to build the garden. If the selected plot has no road, the road should be opened first; Plots with a slope less than15 can be planted directly, and terraces with the same height should be built if the slope is greater than 20.

2. The seedling selection of Pterocarya pinnatifida and pineapple is mainly based on planting sand and waterlogging, and the crown bud or bud with strong growth is selected, which is the key to early fruiting and high-quality cultivation.

3. It can be cultivated all the year round, and April to May is the best, with high survival rate. Choose a sunny day for planting. First, turn over the depth of the ground by 30 cm, apply decomposed chicken manure 1500 kg and calcium magnesium phosphate fertilizer 50 kg per mu, and then make the border, with the border width 140 cm, the border spacing 100 cm, and the plant and row spacing of 35 cm each. When planting, first separate the sprouts according to the plant size, then peel off 2~3 leaves at the base, soak the sprouts at the base with 25% carbendazim 800 times solution for 10 minute, dry and plant. The planting depth is 3~4 cm for crown buds and 6~7 cm for bud. After planting, those found to be dry, rotten and short of plants should be replanted in time.

Second, soil management

1. Fertilization

① Seedling stage. After survival, 0.3% urea and 1% potassium chloride leaching solution were used for 2~3 times of topdressing outside the roots; Fertilize 1 time in spring and autumn in the second year, and apply urea 15 kg, Barneda Bika compound fertilizer 10 kg, magnesium sulfate 1.5 kg and zinc sulfate 0.5 kg per mu each time.

② fruiting period. When the heart of the plant is "red" and the inflorescence is differentiated and developed, timely apply pre-flowering fertilizer, and apply 800 kg of decomposed chicken manure, urea 15 kg, potassium chloride 15 kg, magnesium sulfate10.5 kg and zinc sulfate 0.5 kg per mu, which can increase the inflorescence, increase the number of florets, increase the fruit and improve the yield. Fertilize in time after fruit picking, and apply 500 kilograms of burnt soil, 700 kilograms of decomposed chicken manure, urea 15 kilograms and Bika compound fertilizer 10 kilograms per mu to restore tree vigor and promote bud-sucking growth, so that trees can blossom and bear fruit in a suitable period in the next year. Fertilization before low temperature in winter, mainly potassium fertilizer, can enhance the cold resistance of plants and reduce freezing injury.

Pineapple has aerial roots, and top dressing outside the roots can promote its growth and fruiting, thus achieving high-quality cultivation. Therefore, according to the demand of growth and fruiting, 0.2% potassium dihydrogen phosphate and 0.3% urea can be mixed evenly or sprayed with 1% potassium chloride leaching solution for many times to increase plant nutrition.

2. Intertillage weeding in spring and autumn 1 time. It can promote soil loosening and aeration, make the position of budding lower, not only promote growth and fruiting, but also lay the foundation for high yield in the next year.

3. After fruit picking, combine fertilization to cultivate soil, promote the growth of root system, and make the remaining sucking buds grow healthily.

4. Covering In summer and autumn, in order to maintain soil moisture structure, increase soil organic matter, inhibit the growth of weeds and reduce soil temperature, straw or weeds should be used for covering.

Third, plant management

1. Selecting and reserving buds in time for bud treatment can concentrate nutrition, promote the growth of fruits and the robust growth of reserved buds, improve yield and quality, and lay a good foundation for high yield in the next year.

① Crown bud. When the bloom is 50% to full bloom, and the crown buds grow to 5~6 cm high, hold the fruit with your left hand and twist the small crown buds with your right hand. The crown buds must be removed in sunny days. If the buds are picked in rainy days, water often accumulates in the wound, which causes the fruit core to turn black and rot, affecting the fruit growth. If the crown buds are reserved for seedlings, they should be picked when the crown buds are 15~20 cm high, the leaves are open and there are brown spots in the axils of the basal leaves.

(2) bud. Only the germ buds at the base of the fruit stalk are selected as seedlings, and the selected germ buds are picked when they grow to the height of18 ~ 20cm on the mother plant, and each plant keeps 1~2 germ buds, and three particularly robust plants can be kept; No germ buds are left at the base of the fruit and the middle of the fruit stalk. These germ buds will be removed when they grow to 3 cm high, and the removal will be carried out in 2~3 batches.

③ Sucking buds. Suction buds with low growth position and strong growth are selected to replace the mother plant, with 2 suction buds per plant 1~2, and other suction buds are thinned in stages, with 2~3 buds each time.

④ Tuber buds. Generally, tuber buds should be thinned out, but if the position of each sucking bud is relatively high, tuber buds should be left instead; When there are no tuber buds, we have to leave high suction buds. When the plants lodging after flowering and fruiting in the next year, we should dig holes in the lodging parts, bury the stems and cover them with soil, so as to promote the latent buds in the stems to be extracted, so as to obtain low suction buds and prolong the life of the orchard.

2. Tree protection

1 protect the fruit from the sun. In summer, bundle 4~5 leaves around the fruit or cover the fruit with straw to prevent sun, reduce sunburn and improve quality.

(2) cold and antifreeze. Cover the plants with straw to protect the growing points before the low temperature frost comes, or smoke in the orchard to prevent cold.

Fourth, the application of plant growth regulators

1. Prompt flowering timely, promote flowering and fruiting, prolong the fruit supply period, meet the market demand and improve economic benefits. When the number of leaves reaches more than 35, flowers can be promoted. 500~750 mg/kg 40% ethephon or 15~20 mg/kg NAA (sodium) is used for flower promotion, and 20 ml diluent is taken for heart perfusion. The higher the temperature, the lower the concentration, and the buds can be sprouted in 25~28 days.

2. Promoting fruit growth combined with topdressing outside the roots, using Barneda Bika potassium dihydrogen phosphate plus 0.3% urea plus 50~ 100 mg/kg gibberellin or 200 mg/kg NAA (sodium), spraying 1 time after 50% flowering and withering, increasing nutrition, promoting fruit growth and improving quality.

Five, pest control

There are few pests and diseases of pineapple, and the main disease is pineapple heart rot. The bud seedlings are disinfected by soaking the seedling base with 800 times solution of 25% carbendazim 10 minute, then drying and planting, and spraying 70% thiophanate-methyl 1000 times solution at the beginning of the disease. The main pest is pineapple mealybug. When it is serious, it can be sprayed with turpentine mixture (0/0 times solution in winter and 20 times solution in summer).

2. How to plant pineapple heads Picture

After selecting the pineapple, cut off the terminal bud with a knife, tear off the lower bract, leave it in the shade for 3 days, wait until the incision is dry, and then hang the water for a few days, mainly to wait for the plants to collect water and not rot so easily.

?

Step 3: Take a transparent bottle and fill it with about half water. Insert the terminal bud into the induced root. After about 7 days, the root tip can be seen, and then turn it into a flowerpot for planting. Potted pineapples have no special requirements for soil, so you don't have to be too diligent to water them. Rooting agent can be used or not, because pineapple is easy to grow, and a pot with a diameter of 30 cm is enough.

?

Step 4: Make sure the potted pineapple is sunny after planting. If it is well managed for half a year, it will take about 200 days from flower to fruit. In winter, the outdoor temperature should be about 5℃, keep the light and keep the leaves moist, and then move outdoors in the spring.

?

Expansion: Growth Habits of Pineapple

1, Soil: Pineapple has a wide adaptability to soil. Because the root system is shallow and aerobic, sandy loam or mountain red soil with loose, good drainage and rich organic matter and pH value of 5-5.5 is better, while barren, sticky and poorly drained soil and high groundwater level are not conducive to pineapple growth.

2. Temperature: Pineapple is native to tropical high-temperature and arid areas of South America, and it likes warmth. It is most suitable to grow at an average annual temperature of 24~27℃, and can grow in the range of 15~40℃. It grows slowly below 15℃, and basically stops growing below 10℃. 5℃ is the critical temperature for chilling injury.

3. Moisture: Pineapple has strong drought tolerance. When the soil is short of water, pineapple plants have the function of self-regulation, reducing transpiration intensity, slowing respiration and saving water stored in leaves to maintain life activities. When there is a serious shortage of water, the leaves are red and yellow, so they must be irrigated in time to prevent dryness. Too much rain and high soil moisture will cause root rot and plant heart rot or wither.

4. Illumination: Pineapple was originally grown in the semi-shaded tropical rain forest, which was relatively shade-tolerant. Due to long-term artificial cultivation and domestication, the requirement for illumination increased, and it grew well under sufficient illumination, with high sugar content and good quality. Insufficient light leads to slow growth, high acid content and poor quality of fruit. The light decreased by 20%, and the yield decreased by 10%. However, if the light is too strong and the temperature is too high, the leaves will turn red and yellow, and the fruit will burn easily.

3. How to plant pineapple heads in the right way

Pineapple cultivation techniques 1. Garden construction 1. Choose the southeast or south slope with convenient transportation to build the garden. If there is no road in the selected plot, the road should be opened first; Plots with a slope less than15 can be planted directly, and terraces with the same height should be built if the slope is greater than 20.

2. The seedling selection of Pterocarya pinnatifida and pineapple is mainly based on planting sand and waterlogging, and the crown bud or bud with strong growth is selected, which is the key to early fruiting and high-quality cultivation. 3. It can be cultivated all the year round, and April to May is the best, with high survival rate.

Choose a sunny day for planting. First, turn over the depth of the ground by 30 cm, apply decomposed chicken manure 1500 kg and calcium magnesium phosphate fertilizer 50 kg per mu, and then make the border, with the border width 140 cm, the border spacing 100 cm, and the plant and row spacing of 35 cm each. When planting, first separate the sprouts according to the plant size, then peel off 2~3 leaves at the base, soak the sprouts at the base with 25% carbendazim 800 times solution for 10 minute, dry and plant. The planting depth is 3~4 cm for crown buds and 6~7 cm for bud. After planting, those found to be dry, rotten and short of plants should be replanted in time.

Second, soil management 1. Fertilization ① seedling stage. After survival, 0.3% urea and 1% potassium chloride leaching solution were used for 2~3 times of topdressing outside the roots; Fertilize 1 time in spring and autumn in the second year, and apply urea 15 kg, Barneda Bika compound fertilizer 10 kg, magnesium sulfate 1.5 kg and zinc sulfate 0.5 kg per mu each time.

② fruiting period. When the heart of the plant is "red" and the inflorescence is differentiated and developed, timely apply pre-flowering fertilizer, and apply 800 kg of decomposed chicken manure, urea 15 kg, potassium chloride 15 kg, magnesium sulfate10.5 kg and zinc sulfate 0.5 kg per mu, which can increase the inflorescence, increase the number of florets, increase the fruit and improve the yield.

Fertilize in time after fruit picking, and apply 500 kilograms of burnt soil, 700 kilograms of decomposed chicken manure, urea 15 kilograms and Bika compound fertilizer 10 kilograms per mu to restore tree vigor and promote bud-sucking growth, so that trees can blossom and bear fruit in a suitable period in the next year. Fertilization before low temperature in winter, mainly potassium fertilizer, can enhance the cold resistance of plants and reduce freezing injury.

Pineapple has aerial roots, and top dressing outside the roots can promote its growth and fruiting, thus achieving high-quality cultivation. Therefore, according to the demand of growth and fruiting, 0.2% potassium dihydrogen phosphate and 0.3% urea can be mixed evenly or sprayed with 1% potassium chloride leaching solution for many times to increase plant nutrition. 2. Intertillage weeding in spring and autumn 1 time.

It can promote soil loosening and aeration, make the position of budding lower, not only promote growth and fruiting, but also lay the foundation for high yield in the next year. 3. After fruit picking, combine fertilization to cultivate soil, promote the growth of root system, and make the remaining sucking buds grow healthily.

4. Covering In summer and autumn, in order to maintain soil moisture structure, increase soil organic matter, inhibit the growth of weeds and reduce soil temperature, straw or weeds should be used for covering. Third, plant management 1. Bud selection and bud retention in time can concentrate nutrition, promote fruit growth and the growth of the remaining buds, improve yield and quality, and lay a good foundation for high yield in the next year.

① Crown bud. When the bloom is 50% to full bloom, and the crown buds grow to 5~6 cm high, hold the fruit with your left hand and twist the small crown buds with your right hand. The crown buds must be removed in sunny days.

If the buds are picked in rainy days, water often accumulates in the wound, which causes the fruit core to turn black and rot, affecting the fruit growth. If the crown buds are reserved for seedlings, they should be picked when the crown buds are 15~20 cm high, the leaves are open and there are brown spots in the axils of the basal leaves.

(2) bud. Only the germ buds at the base of the fruit stalk are selected as seedlings, and the selected germ buds are picked when they grow to the height of18 ~ 20cm on the mother plant, and each plant keeps 1~2 germ buds, and three particularly robust plants can be kept; No germ buds are left at the base of the fruit and the middle of the fruit stalk. These germ buds will be removed when they grow to 3 cm high, and the removal will be carried out in 2~3 batches.

③ Sucking buds. Suction buds with low growth position and strong growth are selected to replace the mother plant, with 2 suction buds per plant 1~2, and other suction buds are thinned in stages, with 2~3 buds each time.

④ Tuber buds. Generally, tuber buds should be thinned out, but if the position of each sucking bud is relatively high, tuber buds should be left instead; When there are no tuber buds, we have to leave high suction buds. When the plants lodging after flowering and fruiting in the next year, we should dig holes in the lodging parts, bury the stems and cover them with soil, so as to promote the latent buds in the stems to be extracted, so as to obtain low suction buds and prolong the life of the orchard.

2. Tree protection ① Protect the fruit from the sun. In summer, bundle 4~5 leaves around the fruit or cover the fruit with straw to prevent sun, reduce sunburn and improve quality.

(2) cold and antifreeze. Cover the plants with straw to protect the growing points before the low temperature frost comes, or smoke in the orchard to prevent cold.

Iv. Application of Plant Growth Regulator 1. Prompting flowers in time to promote flowering and fruiting can prolong the supply period of fruits, meet market demand and improve economic benefits. When the number of leaves reaches more than 35, flowers can be promoted.

500~750 mg/kg 40% ethephon or 15~20 mg/kg NAA (sodium) is used for flower promotion, and 20 ml diluent is taken for heart perfusion. The higher the temperature, the lower the concentration, and the buds can be sprouted in 25~28 days. 2. Promoting fruit growth combined with topdressing outside the roots, using Barneda Bika potassium dihydrogen phosphate plus 0.3% urea plus 50~ 100 mg/kg gibberellin or 200 mg/kg NAA (sodium), spraying 1 time after 50% flowering and withering, increasing nutrition, promoting fruit growth and improving quality.

5. Pests and diseases control There are few pests and diseases of pineapple, and the main disease is pineapple heart rot. The bud seedlings are disinfected by soaking the base of the seedlings with 800 times of 25% carbendazim 10 minute, then airing and planting, and spraying 70% thiophanate-methyl 1000 times of the solution at the initial stage of the disease. The main pest is pineapple mealybug. When it is serious, it can be sprayed with turpentine mixture (0/0 times solution in winter and 20 times solution in summer).

4. Polo's head planting method

The jackfruit does not bear fruit for many years after planting, or the vegetative growth is too strong to affect the flowering and fruiting, which seriously affects the fruit setting rate.

In order to improve the fruit setting rate of jackfruit, physical shoot control and chemical flower promotion must be used together. The traditional method is to girdle or girdle the bark on the trunk and main branches, so that more nutrients can be accumulated on the aboveground branches, guppies, and the flowering and fruiting of the branches can be promoted; Or cut the trunk branches every 30cm (with a knife and an axe), which can also promote flowering and fruiting.

In order to stab the cortex without hurting the xylem, it is not necessary to wipe off the milk flowing out. The traditional method of girdling and cutting wounds heals slowly, and it is easy to rot in rainy weather, causing various diseases.

In order to make the jackfruit that has not borne fruit for many years bloom and set more fruits without damaging the tree potential, the method of ring cutting and applying "Cuihuawang No.2" cream can be used to improve the fruit setting rate. In the flower bud differentiation stage, the tree trunk is circumcised at a smooth place, and the cream of "Cuihuawang No.2" is applied to the circumcised mouth, so that it can enter the tree body conduction system, activate anions in the tree body, generate a large number of high-energy electron polarity induction generated by the generate of plant electrons and leaf photosynthesis, and hinder the downward transportation of photosynthetic products, so that the growth function of fruit trees is transformed into reproductive function, flower genes and flower organ ovaries are robust, and a large number of high-quality flower buds are bred and promoted to differentiate, and more flowers and fruits are set, and carrots are produced.

5. Do you need to wait for the incision to dry when planting pineapple heads?

Planting pineapple heads doesn't need to wait for the incision to dry, and it doesn't need incision planting at all.

Pineapple (scientific name: ananassus) is one of the famous tropical fruits. Fujian and Taiwan Province are called pineapples, Singapore and Malaysia are called yellow pears, and mainland and Hongkong are called pineapples. There are more than 70 varieties, one of the four famous fruits in Lingnan.

Pineapple originated in the Amazon River valley of Brazil and Paraguay in South America, and was introduced to China from Brazil in the16th century. Now it has spread to the whole tropical region. Its edible part is mainly composed of inflorescence axis with increased meat quality and flowers arranged spirally around it. The flowers are usually not strong, and the persistent perianth lobes enclose a cavity, in which atrophic stamens and styles are hidden. The fiber of leaves is very tough and can be used for weaving, rope making, netting and paper making.

Pineapple and pineapple are biologically the same kind of fruit. In the market, pineapple and pineapple are different kinds of fruits: after pineapple is peeled, there are "internal thorns" that need to be removed; However, there is no "internal thorn" after the pineapple skin is removed, so it is not necessary to draw a ditch.

6.

Pineapple flower, also known as pineapple flower, is the most popular indoor foliage plant today. With its peculiar flowers and beautiful patterns, people are amazed.

Pineapple: It belongs to the family Pineapple. It is mainly distributed in the coastal forest belt with many reefs in the rainforest area of South America.

There are epiphytic pineapples and non-epiphytic pineapples. The leaves of this family are rich in color, some species have longitudinal stripes or transverse stripes with alternating colors, and some have speckles or fluff.

Bromeliaceae plants can bloom almost all year round. Before and after flowering, 2-3 or more progeny will grow from the leaves at the base of the plant. When the progeny grow to a certain extent, they can be cut off and planted separately. The plants of this family like light, high temperature and humidity, good drainage and culture soil containing humic substances and crude fibers.

Suitable for planting in semi-cloudy and semi-sunny places. Pineapple originated in Central America and the West Indies, and it is a perennial evergreen. There are many varieties of this flower, the plant height is 20-35 cm, the leaves are tightly held in a funnel shape, and the inflorescence is drawn from the center of the plant, which is higher than the leaves. It is beautiful and stylish, and it is a good flower for indoor decoration.

Pineapple needs to be pruned after bloom. If there are branches growing on the base of the mother plant, when the small branches are about 6 cm, cut them down with a sharp knife, cut them in river sand, and put them in a hidden, high-humidity, warm environment, which will produce new roots and can be put into pots. Pineapple seedlings should be put in pots in time, and adult pineapples should be changed pots 1 time in about 2-3 years. The cultivation soil should be mixed with peat, decomposed leaves and river sand in equal amounts, and should be watered permeable after being put in pots or changed pots.

Pineapple needs bright light, and it needs direct light for 3-4 hours every day. In summer, the temperature is 20℃-30℃, so it is better to water more leaves, and keep it above 10℃ in winter, so the water supply should not be too much. Pineapple grows in March 3- 10/0, and can be applied with light liquid fertilizer 1 time every 20 days or so. The effect of applying fertilizer to pineapple is very good by spraying foliar water or filling heart leaves, and liquid fertilizer is often poured into leaves, so it is often unnecessary to apply fertilizer in winter dormancy.

7. Can the cut pineapple head grow pineapple?

First, the cut pineapple head can be used to grow pineapple, but it is necessary to check whether there are insects in the leaves of the pineapple head, and gently pull the leaves. If it is easy to * * *, it proves that the pineapple is too ripe for planting.

The planting method is as follows: Step 1: Cut off a pineapple head; Step 2: Prepare to plant crown buds. The so-called crown bud is the top part of pineapple fruit, which is the most nutritious, so it is the best for planting! Some people will buy the crown buds cut from pineapple stalls for planting.

To cut off the crown bud, just cut the knife at the junction, and don't leave any pulp. You will see that there are dots on the cut surface, which are the roots, and roots will grow from these places in the future.

The third step: the crown bud urges the root to hang the crown bud on the bottle mouth, as close as possible to the water surface but avoid contact. If directly immersed in water, there is a risk of decay.

During this period, you should moisturize and avoid the sun. Part four: transplanting crown buds.

When the root grows to 0.5cm, it can be ready to be transplanted into the earthen pot. Always keep the soil slightly moist, but not wet (which will promote decay) or dry.

It will take six to eight weeks for the stem to really send out strong roots. Don't be impatient with this process, and avoid frequent watering and fertilization.

Second, note: pineapple heads should not be exposed to direct light, and the soil has a wide range of suitability, but it is not suitable for neutral or alkaline soil, sticky or unstructured silty sand, and the pH is required to be 5-6. It is more suitable for pineapple growth where the annual rainfall1000-1500mm and the precipitation time distribution is relatively uniform (monthly rainfall100mm).

The groundwater level of 30-50 cm is beneficial to root growth. 3. After survival of field planting at seedling stage, 0.3% urea and 1% potassium chloride leaching solution are used for 2-3 times of topdressing outside the roots; Fertilize 1 time in spring and autumn in the second year, and apply urea 15 kg, ternary compound fertilizer 10 kg, magnesium sulfate10.5 kg and zinc sulfate 0.5 kg per mu each time.

4. When the heart of the plant is "red" and the inflorescence is differentiated and developed in the fruiting period, timely apply pre-flowering fertilizer, and apply 800kg of decomposed chicken manure, urea15kg, potassium chloride15kg, magnesium sulfate1.5kg and zinc sulfate 0.5kg per mu, which can increase the inflorescence and increase the number of florets. Fertilize in time after fruit picking, and apply 500 kilograms of burnt soil, 700 kilograms of decomposed chicken manure, urea 15 kilograms and ternary compound fertilizer 10 kilograms per mu to restore tree vigor and promote bud-sucking growth, so that trees can blossom and bear fruit in a suitable period in the next year.

Fertilization before low temperature in winter, mainly potassium fertilizer, can enhance the cold resistance of plants and reduce freezing injury. Extended data:

Folding budding 1 and sucking budding are born in the axils of aboveground stems, also known as axillary buds and semi-belly buds.

Suction buds used as seedlings should be fully mature. Where the leaf body hardens and opens, it is about 24-36 cm long. After peeling off the basal leaves, small brown roots appear, which is mature bud absorption.

Generally, bud-sucking seedlings are picked before and after fruit picking for seedling use. Plants propagated by sucking buds are stronger than other bud seedlings and bear fruit earlier, and generally bear fruit after 12- 16 months of planting.

The size of the sucking bud is related to the fruit sooner or later, and the larger sucking bud can be planted 1 year to blossom and bear fruit. 2. If a large bud is used, it will bear fruit soon after planting, and the fruit is small, so it is not suitable for use.

In order to expand the propagation coefficient, when the sucking buds of the mother plant are about 1 0-15cm high, all of them can be picked for propagation, and then the quick-acting fertilizer1time can be applied to the mother plant to promote the basal buds to continue to germinate. When the second batch of sucking buds reaches the above height, the third batch of sucking buds can be treated as before. In this way, in one year, a mother plant of the Philippine variety germinates and sucks more than 40 buds on average. If 30 cm tall mature seedlings are needed, each plant can only get 6-8.

3, the crown bud The crown bud is born at the top of the fruit, also known as the terminal bud. After crown bud colonization, leaves are many, short and dense; More roots, faster rooting; The fruit is big, the flowers are neat, and the fruit maturity is also neat.

Generally, it takes 2 years to bear fruit after planting, and inferior varieties such as multiple crowns, multiple crowns and fan crown buds should be eliminated. The suitable time to pick the crown bud is that the leaves are hardened about 20 cm above the bud, the upper part is opened, the base is narrowed (commonly known as "inserting the waist and spreading the tail"), and young roots appear.

4, the bud is born at the base of the fruit or on the fruit stalk, also known as the bud. The growth and fruiting time and yield of strong buds are the same as those of crown buds, and the yield of extra-large buds is higher.

For multi-ethnic buds and multi-fruit wart buds, they should be eliminated and should not be allowed to reproduce. 5. The development of fruits is affected by the occurrence of bud, so it should be picked in batches. However, in order to propagate seedlings, 2-3 robust buds can be properly reserved, and when they grow to18-20cm, they can be picked and planted, and the fruit can only bear fruit after about 18-24 months, or 2-4 pieces of bud can be cut longitudinally to raise seedlings.

8. Why can pineapple heads grow flowers by hydroponics?

There are some organs or tissues of plants, and now science and technology have ways to regenerate them. This is called tissue culture. Through tissue culture, plants can grow from a small part to a plant. As for whether pineapple can grow new plants as soon as it is put into the water, it depends on the specific situation. Pineapple is a cross-pollinated plant, so it needs a variety of trees to bear fruit after flowering. If only one tree is planted, it is unlikely to produce pineapples.

Extended data:

Pineapple fruit has excellent quality and rich nutrition, and contains a lot of fructose, glucose, vitamins B, C, phosphorus, citric acid and protease. Every100g of pineapple contains 87. 1 g of water, 0.5g of protein, 0. 1 g of fat, 0./0.2g of fiber, 0. 1 mg of niacin, 0.126mg of potassium. 0.2 mg of iron, 0.08 mg of carotene, 0.03 mg of thiamine, 0.02 mg of riboflavin, 8-30 mg of vitamins, 0.3 g of ash, and other organic acids and pineapple enzymes.