Pineapple is native to Guangdong, Guangxi and Yunnan, and belongs to tropical crops. The plant is 70-80 cm high, with long and narrow leaves and serrated edges. Generally, the weight of single fruit is 1.5 kg. 65438-0997 successfully introduced the northern greenhouse, with an yield of more than 5000 kilograms per mu. The shape, color and taste of fruit are superior to those of origin, and it is resistant to pests and diseases and has strong reproductive ability.

1. Site selection and shed construction: neutral clods are selected, and the size of the shed is the same as that of the vegetable shed. There should be heating facilities in winter and the greenhouse temperature should be kept above 5℃ in severe winter.

2. Planting method Before soil preparation, 5000 kilograms of fermented farmyard manure and 25 kilograms of bean cakes were applied per mu. Tillage depth is 25-30cm, leveling and adjusting the north-south boundary. Two meters is the planting belt, the back is 50 cm, and the edge is 150 cm. The height difference of the border is subject to watering, and it is not required to be too large. Four rows are planted in each border, the spacing between plants is about 30 cm, and the density per mu is 4000-4500 plants. Ditching and watering can be used for planting.

Third, the management method should be properly watered at the seedling stage, pay attention to breaking ground and weeding, and promote the growth of stems and leaves (golden fruit). The requirement for fertilizer is not strict in the growth period, and it can be applied at 2: 1: 3 according to the situation. A greenhouse will be built before the first frost. In severe winter, straw mats should be built for sheds at night and in snowy days. When the weather is very cold, heating facilities must be used to raise the temperature, and the temperature in the shed should be kept above 5℃ to prevent plants from freezing. Long summer shed must be drained in rainy season to prevent rotten fruit. Before flowering and fruiting, a wire should be pulled between every two rows to fix the fruit handle to prevent the fruit from lodging. The tender heart at the top of pineapple fruit is easy to hide insects and attract harm, which can be prevented by breaking off the tender heart or covering it with grass. Pesticides are basically not used throughout the growth period. Cultivated in the north, the ripe pineapple peel is flat, yellow and fragrant after the fruit matures 1 1 month.

4. After the fruit is picked, leave a lateral bud closest to the ground for cultivation to prepare for the next year's fruit. The remaining 6-7 lateral buds and terminal buds can be picked and cultured. 1 mu can be planted in the first year, and 7 mu can be developed in the second year.