Due to the large amount of rain and high temperatures in summer, the cultivation of spinach in summer is a difficult problem. We use the greenhouse in summer to carry out summer spinach cultivation in the summer break, which not only solves several technical problems in the planting process, but also achieves higher economic benefits. In the past two years, the promotion of planting summer spinach area in Beiluo Town, Shouguang City has reached 130hm2, with a yield of 1500kg per 667 square meters, and a profit of nearly 12 million yuan. The following describes its planting technology to vegetable farmers. First, the selection of species used in the Netherlands (Beijo) K5, Japan Beifeng and other heat-resistant varieties. 2. Soil preparation and application of 100kg of potassium sulfate compound fertilizer and 2kg of 50% carbendazim per 667m2 are evenly spread to the ground. The soil is then driven into the ground by a rotary cultivator. After leveling the ground, the planting ridge is formed in a north-south direction. The ridge height is 20-25cm. The ridge spacing is 50cm. Third, sowing the area sowing in early June, when planting sowing in the upper side of the ridge, hole 4cm, sowing 4 per hole. Watering after sowing is preferable to soaking planting ridges. Fourth, shading with shade 40% of the sunscreen can be covered on the unopened film. V. Management after emergence After emergence of seedlings and seedlings, the seedlings may be planted in a compacted area. 2. Watering is usually done once every 8 days, depending on the degree of drought. When watering, apply 5 kg of potassium nitrate per 667 square meters with water. When watering, you should pour small water. Don't flood the water to dip the roots of the plants. 3. The main disease prevention and control of pests is damping-off disease. After emergence, the plants and the ground can be sprayed with 1500 times liquid of Gram-negative bacteria. In the case of severe disease, 72.2% Prec 600x plus 68.75% DuPont IpoM 1000 can be used to irrigate or spray. The main insect pests are Liriomyza sativae Blanche and the greenhouse whitefly, which can be sprayed with 1500 times liquid of DuPont and 2,000 times liquid of 1% ticks. 4. Spraying foliar fertilizers in time can be sprayed with Tianda 2116 (leaf vegetable), and can also be sprayed with a 300-fold liquid. Sixth, the timely harvest can be generally 45 days to harvest and sell, otherwise the commodity is poor, and generally can be planted continuously 2 茬. Seventh, matters needing attention 1. Planted ridges instead of hoeing. 2. The rain can not let the rain fall on the plants. 3. When the moss appears on the local surface, the shade net should be removed for several hours, and the ground should be scratched to facilitate ventilation and prevent diseases.
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