Efficient frost prevention method for vegetables with vines climbing branches in high-altitude area

Abstract

The invention discloses an efficient frost prevention method for vegetables with vines climbing branches in a high-altitude area. The method comprises the following steps: 1) carrying out frost prevention from the last ten-day period of November to the middle ten-day period of December, and pumping clear water to a pool at 6-7 pm every evening; 2) primary spraying: spraying water to vegetables at0-2 am before dawn for 3-5 min, wherein a water spraying amount is suitable to ensure that the surfaces of leaves are moist and water drops drop from the leaves; and 3) secondary spraying: spraying the vegetables again at 3-5 am before dawn for 1-3 min, wherein a water spraying amount is suitable to ensure that the surfaces of the leaves are moist but water drops do not drop from the leaves. According to the growth features of the vegetables with the vines climbing the branches, a water-spraying frost prevention mode is adopted, and by the effective spraying time and proper spraying amount, the method of the invention can prevent frost by 90% or above.

Description

technical field [0001] The invention belongs to the technical field of frost prevention for vegetables, and in particular relates to a high-efficiency frost prevention method for vine and climbing vegetables in high altitude areas. Background technique [0002] At present, the area of ​​vegetable planting is getting wider and wider. In high-altitude areas such as Yunnan and other places, due to the long light time and sufficient light, it is very beneficial to the growth of vegetables; however, its disadvantage is that due to the high altitude and low night temperature, vegetables It is easy to frost, and the frost-free period is relatively short. [0003] The original method of anti-frost for vegetables is to use smoke, and the grower will keep it in the field. When the frost falls, fuels such as sawdust, straw, and walnut shells are used to burn to generate smoke and anti-frost. On the one hand, this method has high labor costs and takes a long time to participate , easy ...

AI Technical Summary

Problems solved by technology

[0002] At present, the area of ​​vegetable planting is getting wider and wider. In high-altitude areas such as Yunnan and other places, due to the long light time and sufficient light, it is very beneficial to the growth of vegetables; however, its disadvantage is that due to the high altitude and low night temperature, vegetables Easy to frost, frost-free period is relatively short

[0003] The original method of anti-frost for vegetables is to use smoke, and the grower will keep it in the field. When the frost falls, fuels such as sawdust, straw, and walnut shells are used to burn to generate smoke and anti-frost. On the one hand, this method has high labor costs and takes a long time to participate , easy to overwork, and more importantly, for vine climbing vegetables, most of the growth heights are about 1.2-2m. Excessive growth heights lead to smoke in the field, and it is difficult for the smoke to affect the middle leaves, especially the shoots. The effective protection of the lower leaves, the anti-frost effect is extremely poor; and the anti-frost method of smoke is greatly affected by the weather, wind speed, and wind direction, and the anti-frost effect is difficult to control. Poor controllability, serious environmental pollution, and damage to human health