Frost prevention method for apples

Abstract

The invention discloses an apple anti-frost method. A wind power device, a temperature sensor, a heat release device and a system control device are arranged in an orchard. After a user receives frost early warning information, a signal is generated by using the Internet of Things technology and pushed to the terminal equipment, and the microprocessor controls to open the wind power device; and when the temperature is continuously reduced to be lower than the preset temperature, the sensor transmits a signal to the microprocessor to generate a signal, the heat release device is controlled to be started, the PID controller outputs and adjusts the duty ratio of the PWM waves and the driving conduction time of the water pump, then the rotating speed and flow of the water pump are adjusted, the heat release reaction process is accurate, and the temperature of the orchard is rapidly increased and stabilized near the preset temperature value. A physical method, a chemical method and a self-control technology are combined and applied to orchard frost prevention, the intelligent orchard frost prevention system has the advantages of intelligence, safety, environmental protection, manpower saving and the like, exothermic reaction products can be recycled, the sustainable development concept is followed, frost loss is effectively reduced, and meanwhile the intelligent orchard protection requirement is met.

Description

technical field [0001] The invention belongs to the technical field of disaster protection and relates to an apple frost protection method. Background technique [0002] Apple is a plant of the genus Malus in the subfamily Rosaceae, and its tree is a deciduous tree. China is a big apple producing country, accounting for 65% of the world's total apple production. The main varieties are Shaanxi Luochuan Fuji, Shaanxi Yanchuan Fuji, Gansu Tianshui Huaniu Apple, Shandong Red Star, Shanxi Wanrong and so on. [0003] Among them, Shaanxi apple is the province with the largest apple cultivation area and the largest output in China. Yan'an is one of the main apple production areas in Shaanxi. Due to the deep soil layer in Yan'an area, the average altitude is between 800 and 1100 meters, the abundant sunlight during the day and the large temperature difference between day and night are unique advantages, which are conducive to the fruit to accumulate sugar and grow vigorously. So ...

AI Technical Summary

Problems solved by technology

[0005] According to literature review and field visits, orchard frost protection generally adopts the traditional method of fumigation and cold protection. Farmers dig frost-proof cellars on the flat ground of the orchard, and burn branches, sawing sticks, weeds, fruit bags, etc. in the cellar to prevent frost. Orchard fumigation to raise the average temperature near the trees above the flower frost temperature for prevention [2] , but since frost generally occurs in the second half of the night, it is difficult to monitor the temperature changes in the orchard in time

Combustion of raw smoke is likely to cause fire, which has great potential safety hazards, and is accompanied by many problems such as untimely monitoring, waste of manpower, and environmental pollution.

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