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, select species

Selection of heat-resistant varieties such as Beijo K5 and Japan Beifeng.

Second, the site preparation

667 square meters of potassium sulfate compound fertilizer 100kg, 50% carbendazim 2kg, evenly spread to the ground, with a rotary cultivator into the ground, after leveling the ground, do north-south ridge, ridge height 20 to 25cm, ridge spacing 50cm.

Third, sowing

The area was sown in early June and sowed on both sides of the ridge at the time of sowing. The distance was 4 cm and 4 seeds were planted per hole. Watering after sowing is preferable to soaking planting ridges.

Fourth, shade

Cover the non-removed shed film with a 40% light transmission screen.

V. Management after emergence

1. 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.

Six, timely harvest

Usually 45 days can be harvested for sale, otherwise the commercial nature is poor, generally 2 è¿žç»­ can be planted continuously.

Seven, 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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