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Vegetable cultivation cover shade net technology focus
First, select the appropriate shade net based on the type of vegetables you are growing. Black shade nets are typically used for short-term coverage during the summer and autumn seasons, especially for leafy green vegetables. Silver-gray shade nets, on the other hand, are ideal for protecting seedlings during the summer, which will later be grown for autumn and winter crops. For solanaceous plants like tomatoes or peppers, it's better to delay or avoid shading, unless necessary, and use a more flexible approach.
Second, determine the right time to apply the shade net. Generally, from July to August, when sunlight is strongest, covering may be needed. However, in other months, light intensity is usually suitable for vegetable growth. If there’s no heavy rain, it’s unnecessary to cover the plants.
Third, pay attention to the timing of shading. Shade nets shouldn’t be left on the structure for extended periods, especially black ones, as they can restrict light too much. During midday on sunny summer or autumn days, the light intensity under the net can reach near-saturation levels. Therefore, it's best to cover the plants between 10 to 11 a.m. and 4 to 5 p.m. In the three to four days before removing the net, gradually reduce the covering time so that the seedlings and plants can adapt slowly to full sunlight. This helps prevent shock and ensures a healthier transition.
Additionally, always check the weather forecast before applying or removing the shade net. Proper management of shade nets not only protects your crops from excessive heat and sunburn but also promotes better growth and higher yields. It’s important to monitor the plants regularly and adjust the shading as needed based on their development and environmental conditions.