Is passion fruit planted successfully in Wenxian County, Longnan, Gansu Province?

Passionflower can be planted successfully in Wenxian County, Longnan, Gansu Province. Passion fruit basically has the same temperature requirements as ordinary tomatoes, and has wide adaptability. Suitable for planting in the north and south (the north should be wintered in the greenhouse, and the south should be covered with cold protection before the frost period at an altitude of 1400m, so that it can be safely wintered, otherwise the upper part and lateral branches of the main stem will freeze to death, or even the whole plant will freeze to death).

1. Passion fruit should be planted in February and March every year. The economic cultivation cycle of passion fruit is generally 4-5 years. After harvesting in the fifth year, the old plants will be cut down and completely renewed. Because passion fruit is a tropical fruit, it is easy to be infected with virus after continuous cropping, which reduces the yield and quality. In order to reduce the harm of virus infection to passion fruit, it is best to update and plant virus-free healthy seedlings every year.

(1) The planting distance of passion fruit is vine fruit trees, and the branches are elongated, so the row spacing is 3 meters, the plant spacing is 3-3.5 meters, and there are about 70 plants per mu; The row spacing of single-row hedgerow cultivation is 1.7- 1.8m, and the plant spacing is 3.5-4m, about 0/00 plants per mu.

(2) Planting method: according to the predetermined row spacing and plant spacing, dig a planting ditch with a width of 60 cm and a depth of 20-30 cm, first put mixed compost or other soil miscellaneous fertilizers, and at the same time add 0.25 kg of phosphorus +0. 15-0.25 kg of compound fertilizer to each plant, and then pile it up for planting. After the plant survives, it is necessary to remove the axillary buds at any time, leaving only the top buds of the main vines and tying the vines.

2. During passion fruit planting, scaffolding must be erected for management and harvesting. There are many forms of scaffolding. At present, there are mainly horizontal scaffolding and single-line fence scaffolding. The single-row fence frame column is 2.3 meters high, set between plants and implanted about 30 centimeters underground. Pull two lines per column 12.

3. After the passionflower is pruned and planted, props should be set up at the seedling stage to lure the main vine into the shed. When the main vine grows to 1 m high, the terminal bud should be cut off to make it grow lateral vines, leaving two lateral vines on each side and growing to both sides. When the lateral vine grows to 2 meters, the top of the lateral vine should be cut off to promote the growth of the secondary lateral vine. In the case of horizontal trellis cultivation, when the main vine reaches the trellis, the lateral vine should grow evenly in all directions. Don't cut passion fruit any more, you don't need to cut it hard every year. If it is excessively pruned, the main vine will wither gradually, and the whole plant will die in severe cases. Generally, after each batch of fruits is harvested, each lateral vine should be shortened by 3-4 segments to promote its re-growth. At the same time, it is necessary to prune the branches that grow too densely in summer every year, or cut off the branches that droop and extend to the ground, about 20-30 cm from the ground, in order to maintain good ventilation.

4. The principle of fertilization of passion fruit is that the ratio of nitrogen, phosphorus and potassium is 2: 1: 4, and excessive application of nitrogen fertilizer is prohibited. In order to promote early growth and rapid growth, spray twice 7 days after planting, with an interval of 7 days, and water 60 kg per package. The fruit expands rapidly within 15 days after flowering, so the management of fertilizer and water should be strengthened, especially the application of potassium fertilizer to promote the rapid expansion of the fruit.

5, water management passion fruit is more drought-tolerant, but in case of drought, it is still necessary to irrigate. Too dry soil will affect the development of vines and fruits. In severe cases, branches will wither, fruits will not develop and fruit will drop. Pay attention to drainage in rainy season.