Potatoes are grown mostly in the spring, with products concentrated on the market in june-july, and after august, they have been transferred to the sub-season of supply. It is therefore more efficient to grow tomatoes in the summer. So, do you know how to grow tomatoes in the summer
I. Summer tomato cultivation techniques
1. Choice of varieties
Wheat tomatoes should be selected for high-growth medium- and evening-cooked varieties that are resistant to the heat of disease and are large and full of fruit, such as chinese vegetables and vegetables no. 4, chinese cotton no. 4, lutsu no. 3, lutsu no. 3, lutsu no. 2 and others。
2. Cultivating seedlings
The seeding period for wheat tomato is scheduled for mid-june, mid-april and late, 50 to 60 days. It is not appropriate to be too long to establish a preplant height of 20 centimetres, seven to eight leaves and thick leaves. Organic fertilizer for seedlings should be decomposed. The cultured soil is added to 1 kg of neptunium per 1,000 kg. Scratch prior to broadcast, with a specification of 8 cm. Seeds are sowed after impregnation, with 2-3 grains per square. A post-situation bed with a pole and a shed to cover the plastic sheet before the rain. Because of the high temperatures and the rapid growth of the soil, one of the squares should be kept in time。
Three, plant early
High-intensity planting facilitates drainage, reduces air moisture, reduces disease, lowers surface temperature and reduces the drop of flowers and fruit. Line distance, 30 centimetres, and about 4,000 acres. 1 to 2 days prior to planting, a mixture of 1:2. 25 lime-multiple bordeaux and 90% trichlorfon, 1,000 times more, was sprayed with larvae seedlings and drugd in the afternoon。
Four, the whole branch
Wheat tomatoes are suitable for short-lived human-shaped frame cultivation. Human dictionaries can create better natural ventilators, make full use of light energy, and short-spruce plants can be used for watering and drainage, and reduce the spread of disease. A single-dry whole branch is usually used, leaving 4 to 5 layers of fruit. The old leaves are removed in the middle and later stages to facilitate ventilation。
5. Spraying fruit
Tomatoes are also prone to flowers at high temperatures and can be protected by 25 ppm anti-defeating water solutions. A single:1,200 equivalent of bordeaux is sprayed in the mid-term later stage, with 500 to 600 times the bacterium or 1,000 times the venom, which can prevent the spread of the disease. (c) prevention of aphids, cotton bellworms and platinum, such as the timely spraying of oxidated fruit or fast-to-exercising ding, phosphorous。
6. Fertilizer water management
Organic fertilizers were re-refertilized in the pre-growth period, mainly during the high-temperature season, and applied interchangeably with fertilizer and human urine in the middle and later periods. Spraying of leaf surfaces with 0. 2 ~ 0. 3 per cent potassium phosphate or urea water solutions after each harvest. 15 kg of urea or 1,500 kg of human urine per trip. The water should be wet and dry on the ground, depending on the rainfall and the state of the condition, and usually be sown twice in a row, and then cultivated 2-3 times. First layer walnuts, full of dung water. In july and august, three to four days of fertilizing water. The hot rain clears the air, removes the water and adds well water in case of rotten fruit and chicken. After september, seven to eight days watered once. It's available in early october。
7. Collection in due time
The first fruit is collected at the red line and the cold is to be sold; the latter fruit is white and ripe at 10-15°c。
