Overwintering cold-proof planting method for golden passion fruits in low-latitude and low-altitude areas

Abstract

The invention discloses an overwintering cold-proof planting method for golden passion fruits in low-latitude and low-altitude areas, which comprises the following steps of: (1) selecting medium and large seedlings of golden passion fruits of more than 40cm, and transplanting the medium and large seedlings to a field during the period from late December to February 1st; (2) ridging, and covering a degradable mulching film on the ridge surface; (3) base fertilizer is applied again; (4) shed building and film covering are conducted, two holes are formed in the film between every two plants, and the temperature difference between the interior of the shed and the outdoor is 5-10 DEG C; (5) monitoring the temperature in the greenhouse; (6) in the middle ten days of March, when sunshine is sufficient, uncovering the film, erecting a rod and pulling a line, and re-applying nitrogen fertilizer to promote main vines to climb on the frame; flowering at the beginning of April, increasing the amount of potash fertilizer, topdressing, promoting flowering and fruiting, and harvesting fruits in the middle of June. By means of the method, the planting time of the golden passion fruits in the low-latitude and low-altitude area can be shortened, under the condition that it is guaranteed that seedlings are not affected by low-temperature cold damage, the rejuvenation period can be shortened, growth of main vines can be accelerated, flowering and fruiting can be carried out in advance, the marketing time of the golden passion fruits is shortened, and economic benefits are improved.

Description

technical field [0001] The invention belongs to the technical field of economic crop planting, and particularly relates to a winter-proof and cold-proof planting method of golden passion fruit in low-latitude and low-altitude areas. Background technique [0002] Passion fruit (scientific name: Passiflora edulis Sims), also known as egg fruit, love fruit, is a herbaceous vine of the Passiflora family Passiflora genus, widely grown in tropical and subtropical regions. Passion fruit has strong adaptability, strong stress resistance, fast growth and a wide variety of varieties. The main varieties currently used to produce this type of fruit include purple fruit, yellow fruit and hybrid varieties. The fruit can be eaten raw or used as vegetables and feed. Used as a medicine, it has exciting and strong effects. The fruit pulp is juicy, adding calcium bicarbonate and sugar, can be made into aromatic and delicious beverages, and can also be used to add to other beverages to impro...

AI Technical Summary

Problems solved by technology

[0006] As for the poor cold resistance of golden passion fruit, the average temperature is lower than 15 ℃, it will stop growing, and freezing damage will occur if the average temperature is lower than 10 ℃ for 2-3 days. In the case of frost damage, wilting and death, low-latitude and low-altitude areas such as Guangxi choose to plant after the spring warms up (early March), and the fruits generally do not go on the market until the end of July. A large number of fruits are on the market, the market price is low, and the economic benefits are poor, which restricts the development of the passion fruit planting industry

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