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Vegetable cultivation cover shade net technology focus
First, select the appropriate shade net based on the type of vegetable you're growing. Black shade nets are typically used for short-term coverage during the summer and autumn seasons for leafy vegetables like lettuce and spinach. Silver-gray shade nets are more suitable for protecting seedlings during the summer to prepare them for autumn and winter crops. For solanaceous plants such as tomatoes and peppers, it's better to delay or avoid shading, especially if using a heavy-duty net.
Second, choose the right time for covering. Generally, from July to August, when sunlight is intense, shading is necessary. However, during other periods, the light intensity is usually ideal for vegetable growth. If there’s no heavy rain, there’s no need to cover the plants.
Third, pay attention to the timing of shading. Shade nets should not be left on the structures for extended periods, especially black nets, which can reduce light too much. During sunny summer and autumn days, the net reaches near-saturation light intensity only at midday. It's best to cover in the morning between 10 and 11 a.m., and again in the afternoon between 4 and 5 p.m. Avoid covering during other times. Before removing the net, gradually reduce the covering time over three to four days so that the seedlings can adapt to the increased light exposure. This helps prevent shock and ensures healthier plant development.