Spinach is hi and cold, not resistant to high temperatures and light, and generally it is difficult for normal spinach varieties to grow at temperatures exceeding 25°C. Adopting appropriate technologies to carry out anti-season cultivation in the summer can obtain higher economic benefits. About 35 days after the general broadcast harvest market.
Variety selection: K3 and K6 and other heat-resistant varieties are selected from the Netherlands. These two varieties can still grow normally under the high temperature of about 30°C, and can produce 1500-2000 kg per 667 square meters.
Immersion germination: When the temperature reaches 30°C, the spinach seeds germinate with difficulty and can be germinated in the well. The method is to soak the seeds with deep well water for 1 to 2 hours. After the seeds are sucked in enough water, wrap them in a towel and hang them in the well with a rope, about 1 meter away from the water surface. Wash each morning and evening each time. After 3 to 4 days, the seeds were sown when exposed.
Soil preparation: Apply enough base fertilizer and turn it over. 15 cm spacing, 2 cm deep shallow ditch, the seed evenly sowed in the ditch, spacing from 5 (single seed) to 10 cm (double seed), covering 1.5 to 2 cm. Watering after sowing. After 8 to 10 days, pour a large amount of water, and then pour 2 to 3 times of water depending on the situation.
Sun protection against rain: Because spinach is not resistant to light and heat, the sun must be cooled during the summer.
Pest Control: Summer spinach is susceptible to downy mildew, anthrax, spot and viral diseases. Downy mildew can be controlled with 64% antivirus WP 500 times. Anthrax can be treated with 50% carbendazim WP 700 times or 80% anthraquinone WP WP 800 times. Scab disease can be controlled with 36% Thiophanate Suspension 500x or 40% Polysulfide Suspension 600x. Virus Disease Prevention and Control with 1.5% Phytopathogenic Ling Cream 1000x
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