Shade nets are increasingly being used to protect tomato crops during the summer season, offering a more favorable growing environment that enhances both yield and quality. This technique helps alleviate the seasonal shortage of tomatoes and presents significant market potential with high economic returns. The following are the key cultivation techniques:
First, selecting disease-resistant varieties is crucial for successful summer tomato farming. High temperatures and frequent rain can lead to viral diseases and blossom end rot. Choosing varieties such as Hair Powder 802, Niagara 868, Selster, and New Lunfeng Hybrid 2 can greatly improve crop resilience.
Second, seedling preparation plays an important role. Summer tomatoes should be sown in late June, and after about 30 days of growth, when the plants have 5 to 6 true leaves, they can be transplanted into the field.
Third, proper land preparation and shade net coverage are essential. Soil should be well-drained, fertile, and ventilated, ideally in a winter greenhouse. Apply 5,000 kg of organic fertilizer and 60 kg of potassium sulfate compound fertilizer per acre, then plow deeply. Create raised beds that are 1.2 meters wide, ensuring they are aligned properly for vine support or install triangular or quadrangular trellises.
Shade nets should be installed directly over the framework, with the sides extending 1.5 to 1.7 meters above the ground. They should be covered during midday to reduce heat stress, while allowing morning and evening light exposure for optimal growth. Ensure good ventilation at the base to promote healthy plant development. On sunny days, the nets should be covered during the day and removed at night.
Before transplanting, water the seedlings 3 to 5 days in advance and handle them carefully to avoid damaging branches and spreading viruses. Plant two rows per bed, with 60 cm between large rows and 40 cm between small rows, and maintain a 30 cm spacing between plants. Water each plant immediately after planting and again after two days. After transplanting, apply a mixture of 80% Dasheng M-45 WP diluted 600 times, 60% Downy Mildew WP diluted 300 times, or 20% Virus A WP diluted 300 times, along with 20% Locust 3000 times. Spray every 10 days, up to two times, to prevent early blight, late blight, virus diseases, and pests like aphids and whiteflies.
Fourth, field management includes flower retention and proper pollination. When 2 to 3 flowers open, spray 25–30 mg/kg of Rhizomatis on the back of the inflorescence in the morning (between 9–10 am), repeating every three days. For pollination, use growth hormones like 2,4-D at concentrations of 10–20 mg/kg with a bit of red pigment. Brush the stem of newly opened flowers in the early morning (8–9 am) and avoid spraying directly on leaves or stems to prevent damage. Be careful with concentration levels, as excessive amounts or repeated applications may cause abnormal fruit development.
Instant Fresh Noodles,Bibimbap With Black Truffle Sauce,Spicy Beef Bibimbap,Spicy Crawfish With Shrimp Granules Over Noodle
Hunan Jiapin Jiawei Biotechnology Co. , https://www.foxfoodie.com