A transparent high-molecule thin film used for physical isolation of plant diseases and pests without pesticides
A polymer film, physical isolation technology, applied in the direction of plant protection cover, etc., can solve problems such as non-reusable, incomplete, endangering human health, etc., to avoid poor growth, isolate diseases and insect pests, and not easily damaged.
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Embodiment 1
[0059] as image 3 The shown simple greenhouse 30 carries out the field planting test, wherein the material of the non-pesticide physical isolation disease and insect pest transparent polymer film 1 used in the simple greenhouse 30 is PE (polyethylene), and the thickness of the film is 0.1mm, and there are punctures on it. Aperture 4mm, density 40,000 / m 2 (hole distance 5mm), hole diameter 2mm, density 40,000 / m 2 (hole distance 5mm) and hole diameter 1mm, density 20,000 / m 2 (hole distance 5mm). The selected plant is Chinese cabbage, which is planted in a common field planting method. It takes about 30 to 40 days to harvest from the seed to the adult plant, and it is divided into a control group and an experimental group, wherein the control group That is, no pesticides were used and the simple greenhouse was not used for biological control; the experimental group was no pesticides used but the simple greenhouse 3 was used for biological control.
[0060] Obtained in the ex...
Embodiment 2
[0064] same as image 3 The shown simple greenhouse 30 is used for field plant planting tests, but when the planting test is carried out, an isolation film for preventing and controlling soil diseases and insect pests is laid on the soil surface of the simple greenhouse 30, wherein the material of the isolation film is also PE (polyethylene), and The thickness of the isolation membrane is 0.1mm, and holes with diameters of 1mm, 2mm, 3mm and 5mm are pierced on it, the hole distance is 7.5mm, and the hole density is 24,000 / m 2 ; The isolation film as shown in Figure 4 and Figure 4b shown, where Figure 4a The hole diameter of the hole 41 in the isolation film 40 is 1 mm, the hole diameter of the hole 42 is 2 mm, the hole diameter of the hole 43 is 3 mm, and the hole diameter of the hole 44 is 5 mm; Figure 4b The hole diameter of the hole 41 in the isolation film 40' is 1mm, the hole diameter of the hole 42 is 2mm, and the hole diameter of the hole 43 is 3mm.
[0065] For th...
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