Straw mulching with grass is an effective technique used in strawberry cultivation. It helps retain soil moisture, regulate temperature, suppress weed growth, and acts as a protective layer that prevents the berries from touching the ground or rotting. This method can significantly enhance both the yield and quality of strawberries. The grass used for mulching typically includes wheat straw, corn stalks, or other dry plant materials. Before applying the mulch, it's recommended to loosen the soil to a depth of 5–10 cm. Then, spread the mulch evenly between the rows of strawberries, aiming for a thickness of about 3 cm.
Another common practice is the use of plastic film. This technique is widely applied in both open fields and protected environments. The film helps maintain warmth, retain moisture, and supports the breakdown of organic matter in the soil, which in turn provides more nutrients to the plants. It also promotes root development and the growth of above-ground parts, leading to higher yields and better fruit quality. However, careful timing is essential when using plastic film. In northern regions where late frosts are common, covering the plants too early may expose them to frost damage during flowering. In southern areas with high temperatures during fruit ripening, the berries may suffer from heat stress or sunburn. Additionally, if harvesting occurs during the rainy season, it’s important to remove the cover promptly after picking to allow proper air circulation and avoid waterlogging. Regular maintenance, such as removing runners and applying fertilizer, should also be carried out during the growing period.
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