Anti-root intrusion and rat and insect bite resistant subsurface drip irrigation tape

An underground drip irrigation and drip irrigation belt technology, applied in the fields of pest control, biocides, plant growth regulators, etc., can solve problems such as unfavorable production, irritation symptoms, restricting the development of underground drip irrigation technology, etc. The effect of improving the anti-clogging performance

Inactive Publication Date: 2018-01-26
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the following two problems have always been the bottleneck restricting the development of subsurface drip irrigation technology
Kou Xiaoyu et al. (Application Publication No. CN105218971A) disclosed a modified anti-insect biting PVC drip irrigation belt used in the field of agricultural water-saving irrigation facilities, mainly by adding deltamethrin to the masterbatch to effectively prevent pests from biting the drip irrigation belt, but the user's skin contact will cause irritation symptoms, so it is not conducive to actual production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Alfalfa is the main crop in Dengkou County, Bayannaoer City, Inner Mongolia Autonomous Region. At present, the main irrigation method is underground drip irrigation, which greatly saves labor and water resources. However, the problems of root invasion and rodent bites are very prominent in the local alfalfa planting process, which directly restricts the application of subsurface drip irrigation in the local alfalfa planting process.

[0052] 1) Preparation process of anti-root invasion microcapsules:

[0053] Using trifluralin as the core material and polyhydroxyalkanoate as the wall material, trifluralin microcapsules were prepared by the solvent evaporation method. The specific steps are as follows:

[0054] ① Dissolve 20g of urea in 84g of water, stir to fully dissolve; then mix with 45g of formaldehyde, then adjust the pH value to 8.0 with sodium hydroxide, and stir and react at 70°C for 1 hour to obtain urea-formaldehyde resin;

[0055] ②Dissolve 10.5g of triflura...

Embodiment 2

[0077] Embodiment 2, the anti-root invasion and anti-rat and insect bite test of the underground drip irrigation belt gained in embodiment 1

[0078] (1) Anti-root invasion test:

[0079] The emitters containing trifluralin microcapsules and the emitters without trifluralin microcapsules were processed into drip irrigation belts with the pipe wall of ordinary drip irrigation belts respectively, and the product performance verification of the anti-root invasion sprinkler was carried out through the tomato underground drip irrigation pot test , a total of 36 tomato potted plants, each treatment has 18 potted plants.

[0080] By testing the flow rates of the two drip irrigation belts in different periods, it was found that the flow rate of the emitter containing trifluralin microcapsules had no significant change and no root system entered the water outlet of the emitter at the final sampling; During the sampling of the emitters, 5 emitters with different degrees of clogging were ...

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Abstract

The invention discloses an anti-root intrusion and rat and insect bite resistant subsurface drip irrigation tape. The subsurface drip irrigation tape includes an irrigation emitter and a drip irrigation tape. Specifically, the raw materials for preparation of the irrigation emitter include linear low density polyethylene, a herbicide microcapsule and a dispersing lubricant, and the raw materials for preparation of the drip irrigation tape pipe wall include synthetic capsaicin microcapsule and deltamethrin microcapsule. The drip irrigation tape provided by the invention integrates root intrusion prevention, rat and insect bite resistance and the like, has significantly improved performance, covers up the peculiar smell of the core material, lowers the product toxicity, reduces the pollutionof underground water and soil, and at the same time reduces the influence on users' personal safety to a certain extent,.

Description

technical field [0001] The invention belongs to the field of water-saving irrigation, in particular to an anti-root invasion and anti-rat and insect bite underground drip irrigation belt. Background technique [0002] Subsurface drip irrigation is widely used in crop irrigation because of its advantages of preventing capillary loss and aging and facilitating field management. However, the following two problems have always been the bottleneck restricting the development of subsurface drip irrigation technology. [0003] The first problem is root invasion. Because the root system of crops is water-oriented, it is very easy to grow close to the emitter or even enter its interior, which will cause the emitter to be blocked. At present, there are mainly two ways to use herbicides to solve the problem of root invasion. One is to apply herbicides with water, but in order to achieve the effect of root repelling, the amount of herbicides is relatively large. If things go on like t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L61/24C08L77/02C08L67/04C08K5/00A01N37/18A01N53/08A01N25/28A01P17/00A01G25/06
CPCY02A40/22
Inventor 李云开梅姣姣冯吉
Owner CHINA AGRI UNIV
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