Water and fertilizer integrated garlic irrigation system and control method thereof

Abstract

The invention discloses a water and fertilizer integrated garlic irrigation system and a control method thereof. According to the water and fertilizer integrated garlic irrigation system, biodegradable mulching films are applied during the early stage of growth of garlic to meet the demands before the seedling period of garlic on warming and moisturizing; after the biodegradable mulching films aredegraded, spray irrigation is applied to meet the demands of the late stage of growth of garlic on large amount of water and fertilizer supply; as to system design, a circulating fertilizer preparation pipe is arranged to save fertilizer blending power and ensure more convenience in space layout of the water and fertilizer integrated garlic irrigation system; in aspect of control, mean values ofatmospheric accumulated temperature and ground accumulate temperature are applied to representing different growth stages of garlic, and according to the rules of absorption of garlic to different mineral nutrients in different growth stages, fertilizer application schemes and amount are dynamically designed to achieve precise, automatic and intelligent regulation of water and fertilizer during scale garlic planting. Meanwhile, the water and fertilizer integrated garlic irrigation system conforms to the garlic production processes such as mechanical sowing and harvesting, thereby being applicable to scale garlic production as well as generalized application.

Description

technical field [0001] The invention belongs to the field of irrigation, and in particular relates to a garlic water and fertilizer integrated irrigation system and a control method, which can realize the water and fertilizer integration and automatic management in the large-scale garlic production process. Background technique [0002] Garlic is a overwintering crop. In the process of large-scale production, it is generally covered with transparent plastic film cultivation to increase soil temperature, maintain soil moisture, maintain soil structure, reduce pests attacking crops and diseases caused by certain microorganisms, and promote the health of garlic. grow. If the plastic film is not used, it is easy to cause production problems such as freezing to death and drought. At present, this production method of garlic is conducive to the formation of garlic yield and quality, but it is not conducive to the integrated and precise management of water and fertilizer in the la...

AI Technical Summary

Problems solved by technology

If the plastic film is not used, it is easy to cause production problems such as freezing to death and drought

At present, this production method of garlic is conducive to the formation of garlic yield and quality, but it is not conducive to the integrated and precise management of water and fertilizer in the large-scale production of garlic.

In terms of irrigation methods, if sprinkler irrigation is used, the irrigation water cannot evenly penetrate into the soil under the film due to the traditional impermeable plastic film covering, so that the sprinkler irrigation method cannot be used in the traditional production mode of garlic covered with plastic film

The use of under-film drippers can ensure that irrigation water penetrates into the soil and maintain good irrigation uniformity. However, the planting density of garlic is too high, the general row spacing is 20cm, the plant spacing is 15cm, and the planting density reaches 22,000 to 27,000 plants / mu. A large number of pipes are installed after the garlic is sown, and the cost of the pipes, the workload of installation and dismantling, and the later production and maintenance are all unfavorable factors in the production process, which makes the under-film droppers unable to be used in the large-scale production of garlic.

[0003] Therefore, in the current large-scale production process of garlic, in terms of water management, it can only be flooded with water from ditches, which often results in excessive irrigation, soil compaction, hypoxia and waste of irrigation water.

In terms of fertilizer management, the base fertilizer can only be used as the main fertilizer, supplemented by top-dressing fertilizer, and the method of top-dressing fertilizer can only be based on furrow irrigation. According to the actual needs of garlic for different mineral nutrients in different growth stages and growth stages, carry out scientific and precise fertilization management

At the same time, it also hinders the automatic and intelligent management of water and fertilizer in the large-scale production of garlic

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