Non-woven fabric plant cover freeze protection refers to the technology or method of using non-woven fabric materials as coverings to provide cold and frost protection for plants. The following details explain its material characteristics, anti-freeze principles, advantages, application scenarios, and precautions:

I. Material Characteristics of Non-woven Fabric

Non-woven fabric, also known as non-woven cloth, is made from polymer materials like polypropylene (PP) through processes such as spunbond and melt-blown. It has the following features:

<!--[if !supportLists]-->• <!--[endif]-->Lightweight and breathable: It is light, preventing damage to plants from pressure; the pores between fibers allow air and water vapor to circulate, avoiding plant diseases caused by stuffiness and humidity.

<!--[if !supportLists]-->• <!--[endif]-->Good heat preservation: The fiber structure forms an air layer, blocking external cold air while reducing heat loss from plants, creating a local "greenhouse effect".

<!--[if !supportLists]-->• <!--[endif]-->Moderate light transmittance: It allows partial sunlight to pass through, meeting the photosynthetic needs of plants and preventing excessive elongation due to long-term coverage.

<!--[if !supportLists]-->• <!--[endif]-->Durable and eco-friendly: It is tear-resistant, anti-aging, and reusable; some non-woven fabrics are biodegradable, friendly to the environment.

II. Anti-freeze Principles

<!--[if !supportLists]-->1. <!--[endif]-->Physical isolation and heat preservation:

When non-woven fabric covers the plant surface, it acts like a "thermal coat," blocking direct contact between external cold air and plant branches, leaves, and roots. This maintains the temperature around the plant 1-3°C higher than the outside, reducing the risk of frost damage.

<!--[if !supportLists]-->2. <!--[endif]-->Reducing water vapor condensation:

At night, when temperatures are low, water vapor in the air easily condenses into frost on the plant surface. Non-woven fabric can absorb part of the water vapor, reducing the probability of frost directly contacting the plant and protecting cells from ice crystal damage.

III. Advantages Compared to Other Materials

IV. Application Scenarios and Usage Methods

1. Application Scenarios

<!--[if !supportLists]-->• <!--[endif]-->Home gardening: Protecting potted flowers, vegetables (such as strawberries, lettuce), seedlings, etc., especially in regions with low temperatures but not extreme cold (e.g., temperate and subtropical winters).

<!--[if !supportLists]-->• <!--[endif]-->Agricultural production: Used for cold protection of seedlings in orchards (such as citrus, grapes) or nurseries, or to protect new shoots during late spring cold snaps in spring.

<!--[if !supportLists]-->• <!--[endif]-->Urban greening: Wrapping young street trees, shrubs, or covering flower bed surfaces to prevent soil freezing from affecting roots.

2. Usage Methods

<!--[if !supportLists]-->• <!--[endif]-->Select specifications: Choose non-woven fabric with appropriate grammage (e.g., 50-100 g/m², higher grammage for lower temperatures) based on the local minimum temperature.

<!--[if !supportLists]-->• <!--[endif]-->Covering methods:

<!--[if !supportLists]-->◦ <!--[endif]-->For low plants: Directly spread the non-woven fabric over the plants, compressing the edges with soil or stones to avoid air leakage;

<!--[if !supportLists]-->◦ <!--[endif]-->For tall plants: Wrap the non-woven fabric around the trunk or branches with ropes, leaving a ventilation opening at the top to prevent excessive internal humidity caused by day-night temperature differences.

<!--[if !supportLists]-->• <!--[endif]-->Combine with other measures: Before covering, water with antifreeze or mound soil to enhance cold protection; when the temperature rises during sunny days, uncover the non-woven fabric for ventilation to prevent plant damage from stuffiness.

V. Precautions

<!--[if !supportLists]-->1. <!--[endif]-->Avoid long-term coverage: Remove the non-woven fabric in a timely manner after the temperature rises; otherwise, long-term shading may cause excessive elongation and reduced resistance in plants.

<!--[if !supportLists]-->2. <!--[endif]-->Prevent water accumulation: Check the coverings during rainy or snowy days to avoid water accumulation crushing the plants or causing the non-woven fabric to sag due to increased weight.

<!--[if !supportLists]-->3. <!--[endif]-->Regular inspection: Observe plants for signs of mildew or pests, especially in high-humidity environments, and strengthen ventilation.