1. Planting 3800 ~ 4000 pineapples per mu requires a lot of seedlings. There are three commonly used methods, namely plastic hormone, asexual reproduction and tissue culture.

2. Technical points of high quality and high yield of pineapple: 1. Choose a garden that faces south, with abundant sunshine, abundant water resources and convenient transportation as a commodity production base. Second, scientific planting, improving poor soil before planting and applying sufficient base fertilizer; Choose strong seedlings for planting.

Three: growing habits

Most pineapples have rosette leaves. It is a special habit of pineapple to form a leaf tube that can store water at the base of the leaf cluster. It must be watered frequently to make the leaf tube store enough water and grow sturdily.

Another special habit of most ornamental pineapples is that they bloom only once in their lives, and the mother plant will die after a period of flowering. At this time, one or several niè buds will sprout from the stem base or root of the mother plant, which is a good material for cultivating new plants.

Fourth, the planting method:

1, double row, common furrow *** 150cm wide, double row single plant layout.

2. The width of the furrow arranged by three rows of single plants is *** 170cm, in which the width of the furrow is 120cm, the small row spacing is 35-40cm, and the plant spacing varies with the density, generally between 20-25cm.

3. Four-row type: Generally, the border is 200cm wide, planted in wide and narrow rows, with a width of 100cm (including 50cm of groove width) and a narrow row of 50cm (including 20cm of groove width). The molded frame is planted with a row spacing of 25cm, and 4500-5000 plants are planted every 667m2.

Five: water

Water conservancy management should timely irrigation and drainage, flood control and drought relief.

Other management: in order not to affect the growth and development of fruits, buds should be properly removed to keep seeds; To promote flowers, we must promote flowers; In order to improve the weight and quality of the fruit, after all the florets withered, the fruit was sprayed with 50 mg/L gibberellin and 0.5% urea solution, and sprayed again 20 days later, and then sprayed with 70 mg/L gibberellin and 0.3% urea solution. In order to make the fruit mature evenly, when the fruit reaches the seventh maturity, 300 mg/L ethephon is used to accelerate the fruit ripening.

Pineapples can also be grown in Chongqing.

Pineapple is one of tropical fruits. Fujian and Taiwan Province provinces are called Wangli or Wanglai, Singapore and Malaysia are called Huangli, and the mainland and Hongkong are called pineapple. There are more than 70 varieties, which is 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. Flowers are usually not strong, and persistent flowers are surrounded by lobes in a cavity in which atrophied stamens and styles are hidden. The fiber of leaves is very tough and can be used in textile, rope making, netting and paper making. Pineapple and pineapple are biologically the same 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 is peeled, so there is no need to cut the ditch.