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Special auxiliary agent for unmanned aerial vehicle spraying applied to plant protection, and preparation method and application thereof

A technology for planting and protecting drones and additives, applied in the fields of botanical equipment and methods, applications, plant growth regulators, etc., which can solve the problem that the droplets are easily blown away by the wind field environment, and the dosage cannot reach the effective dosage. , the acceleration of the elimination of pesticide varieties, etc., to achieve the effect of reducing the bouncing effect, easy wetting and penetration, and reducing drift.

Pending Publication Date: 2020-05-22
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the rise of UAV plant protection flight defense has also brought some negative impacts, such as the wind force of the site and the UAV’s own rotor wind field during operation. After spraying, the mist containing pesticides is easily blown away by the wind field environment. Operating range, fog droplets drift to surrounding crops
Especially when spraying herbicides, it is very easy to cause phytotoxicity to surrounding crops. According to data, under the influence of the third-level wind force, the mist drift distance can even reach a distance of more than 60 meters.
Due to the limited load capacity of the UAV, the ultra-low-capacity precision spraying mode is adopted during the flight defense operation. The dosage per mu is generally about 1-2L. Less diluent needs to be sprayed in such a large area. Evaporation of only a small part at high temperature is also a huge loss for the very small amount of diluent, resulting in the actual dosage failing to reach the effective dosage
In order to avoid the losses caused by inadequate control of such situations, the amount of pesticides is often increased during operation. The actual result is that the pesticide residues are too high, which is easy to cause damage to field water, soil, natural enemies, and field water biological populations. Target organisms Due to the high concentration of pesticide control all year round, the resistance generally increases significantly, resulting in a decrease in plant protection control efficiency and accelerated elimination of pesticide varieties

Method used

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  • Special auxiliary agent for unmanned aerial vehicle spraying applied to plant protection, and preparation method and application thereof
  • Special auxiliary agent for unmanned aerial vehicle spraying applied to plant protection, and preparation method and application thereof
  • Special auxiliary agent for unmanned aerial vehicle spraying applied to plant protection, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A special additive for plant protection UAV flying anti-spray, in the form of a "water / oil / water" three-phase kinetically stable emulsion, which includes the innermost dispersed water phase, the middle dispersed oil phase, and the outermost continuous aqueous phase. Of course, other embodiments may also include pentagonal multi-phase systems.

[0037] Specifically, the plant protection UAV flying anti-spray special additive consists of the following components: methyl oleate 109.5g, fatty alcohol polyoxyethylene ether organic phosphate 4.5g, sorbitan fatty acid ester 16.5g, hydroxyl 3g of phenol EO / PO block polyether, 5g of fatty alcohol polyoxyethylene ether, 9g of n-butanol, 10g of glycerol, 0.5g of water-soluble dye (red), and 1000g of deionized water.

[0038] A preparation method of a special additive for plant protection drone flying anti-spray, comprising the following steps:

[0039] 1) According to the above-mentioned special spray additive formula, weigh fat...

Embodiment 2

[0056] A special additive for plant protection UAV flying anti-spray, in the form of a "water / oil / water" three-phase kinetically stable emulsion, which includes the innermost dispersed water phase, the middle dispersed oil phase, and the outermost continuous aqueous phase. Specifically, the plant protection UAV flying anti-spray special additive consists of the following components: 200g methyl oleate, 10.5g fatty alcohol polyoxyethylene ether organic phosphate, 35g sorbitan fatty acid ester, n-butanol 21g, 5g of phenylethylphenol polyoxyethylene ether, 20g of glycerol, 200g of tap water, and 1000g of deionized water.

[0057] A preparation method of a special additive for plant protection drone flying anti-spray, comprising the following steps:

[0058] 1) According to the above-mentioned spray special additive formula, weigh fatty alcohol polyoxyethylene ether organic phosphate, sorbitan fatty acid ester, and n-butanol respectively after stirring and mixing, add methyl olea...

Embodiment 3

[0075] This example provides a special adjuvant for plant protection drone flight prevention spray. The special adjuvant for spray is processed from the formula provided in Example 1, and the droplet settlement value is compared with the commercially available adjuvant.

[0076] In this experiment, a plant protection drone was used to spray the special spray additive and "commercially available products" on the field. The test field was located in Fuquan Town, Shaoxing City, Zhejiang Province. The UAV sets the automatic spray mode, and the flight parameters are set: flight speed ±5m / S, spray liquid volume 2L / acre, and two different flight heights of 1m and 1.5m (the height is based on the drone nozzle and the target crop canopy) distance meter). There are 3 repeated treatments in each plot, each treatment area is 3*30m, and a droplet test card is placed at the front, middle, and rear ends of each treatment. Clamped on the upper and middle leaves of the rice, with two clumps o...

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Abstract

The invention discloses a special auxiliary agent for unmanned aerial vehicle spraying applied to plant protection. The auxiliary agent is in a water / oil / water three-phase dynamic stable emulsion state, and at least comprises an innermost-layer dispersion water phase, a middle-layer dispersion oil phase and an outermost-layer continuous water phase. The invention also discloses a preparation method of the special auxiliary agent for unmanned aerial vehicle spraying applied to plant protection. The preparation method comprises the following steps: 1) preparing the oil phase; 2) preparing the water phases; 3) preparing a water-in-oil emulsion; and 4) preparation of the three-phase special auxiliary agent for aerial vehicle spraying used for pesticide control. The special auxiliary agent caneffectively inhibit the evaporation capacity of fog drops, reduce the drifting effect of the fog drops and improve the sedimentation rate of the fog drops on crop leaf surfaces; that is, the efficiency of targeted drug delivery is improved; and finally, effective prevention and treatment of crop diseases, insect pests and weeds are achieved, and the problems of phytotoxicity and environmental pollution caused by drifting of the fog drops are reduced.

Description

technical field [0001] The invention belongs to the technical field of preparation of pesticide preparations, and in particular relates to a special adjuvant for plant protection drone spraying, a preparation method and application thereof. Background technique [0002] At present, the operation method of using drones to prevent and control agricultural crop diseases, insect pests and weeds by flying spray spraying has high efficiency (300-500 mu / day), saves labor, and is safe for operators, which is much higher than traditional manual backpack spraying operations. (10-15 mu / day), compared with other mechanized plant protection and control, it also has great advantages, and it hardly pollutes soil and water sources. In recent years, with the rapid development of agricultural intelligence, traditional mechanized agricultural equipment has been unable to follow up, especially in plant protection and control. UAVs have great potential in plant protection and control intelligenc...

Claims

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Application Information

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IPC IPC(8): A01N25/04
CPCA01N25/04
Inventor 朱瞬瞬郑旭飞朱丽燕沈国强黄贤夫陆强徐展益朱国念
Owner ZHEJIANG UNIV
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