Key points of tomato cultivation in solar greenhouse in early spring
2019-05-22 08:06:08
One, early Tengjiao, rational planting before picking tomatoes, cucumbers, zucchini and other vegetables after pulling, timely cleaning root stubble leaves and planting ridge membrane surface mud: On the colonization of the seedlings, to avoid the former pod stasis, planting Dig pits between the two holes inside the ridge, the size and depth of the pits can be determined depending on the size of the tomato seedlings. 1 to 2 days before planting, the tomato seedbeds were properly watered, and when the seedlings were taken, the roots were cut as little as possible, the cuttings were planted with pods, or the pods were fed with nutrients. The depth of colonization was appropriate for burying the soil. According to the soil moisture, the main obstacles of the young seedlings, such as the length of the seedlings and the roots of the early spring seedlings, should be ploughed and retted as soon as possible after the tomato seedlings are soaked to remove the compaction, create a loose and well-ventilated soil environment, and promote the seedlings to grow quickly and quickly. . The planting ridges and root areas should be shallow cultivating measures, the depth of 3 to 5 cm, the width of the line can be taken by milling, the depth of 20 to 25 cm, and conditions can be applied to a certain amount of decomposed organic fertilizer during the ploughing and widening, to improve the soil fertility Conditions, root growth.
Second, as early as fertilizer, promote seedlings and stable growth of tomatoes after planting should pay close attention to fertilizer to make up for the lack of soil nutrients, can be used foliar spray and water irrigation method, NPK balanced fertilizer supply. In the early stage, organic fertilizers such as bio-fertilizer, NPK fertilizer, or decomposed chicken manure were mainly used to spray foliar fertilizer. With the gradual warming of the climate, the duration of air release is prolonged, and the decomposed human fecal urine is applied with 0.5% of black leeches. The dosage per mu is 1,000 to 1,500 kilograms per time. Watering topdressing should be performed in the fine weather in the morning. The day before the watering should be sprayed to prevent disease. After watering, warm up to 30 ~ 32 °C high temperature stuffy shed, dehumidification 1 ~ 2 times, reduce the humidity inside the shed to reduce the chance of disease.
Third, to strengthen plant management First, temperature management, planting to a mild seedling period, during the day 25 ~ 30 °C, 17 ~ 15 °C at night, flowering fruit set during the day 25 ~ 28 °C, 15 ~ 12 °C at night. At the same time pay attention to scratch film, improve light quality.
The second is that most of the tomato seedlings in the early spring are planted with buds. After the seedlings are slowly regenerated, they are gradually blossomed. Since the flower buds differentiate into ten low-temperature periods, the rate of malformed flowers is high, and they must be removed in time. We must also pay attention to thinning and fruit thinning. According to the variety, seedling size and degree of weakness, it is generally recommended that 2~4 fruit should be preserved in large fruit varieties. In the fruit type 6 to 8 fruit.
The third is timely pruning. After planting, in order to increase the photosynthetic area and promote root development in the underground area, appropriate rights may be reserved, but it shall not exceed 10 cm. With the development of the seedlings, the plant type, which is dominated by the main vine, is cultivated, and the right pruning is used in time to reduce nutrient consumption and influence ventilation.
IV. Pest and Disease Control With the increase of temperature and the prolonged release of air, the prevention of high temperature and humidity should be emphasized. Such as early blight with 58% Kelu 800 times, 500 to 800 times metalaxyl MnZn.
Second, as early as fertilizer, promote seedlings and stable growth of tomatoes after planting should pay close attention to fertilizer to make up for the lack of soil nutrients, can be used foliar spray and water irrigation method, NPK balanced fertilizer supply. In the early stage, organic fertilizers such as bio-fertilizer, NPK fertilizer, or decomposed chicken manure were mainly used to spray foliar fertilizer. With the gradual warming of the climate, the duration of air release is prolonged, and the decomposed human fecal urine is applied with 0.5% of black leeches. The dosage per mu is 1,000 to 1,500 kilograms per time. Watering topdressing should be performed in the fine weather in the morning. The day before the watering should be sprayed to prevent disease. After watering, warm up to 30 ~ 32 °C high temperature stuffy shed, dehumidification 1 ~ 2 times, reduce the humidity inside the shed to reduce the chance of disease.
Third, to strengthen plant management First, temperature management, planting to a mild seedling period, during the day 25 ~ 30 °C, 17 ~ 15 °C at night, flowering fruit set during the day 25 ~ 28 °C, 15 ~ 12 °C at night. At the same time pay attention to scratch film, improve light quality.
The second is that most of the tomato seedlings in the early spring are planted with buds. After the seedlings are slowly regenerated, they are gradually blossomed. Since the flower buds differentiate into ten low-temperature periods, the rate of malformed flowers is high, and they must be removed in time. We must also pay attention to thinning and fruit thinning. According to the variety, seedling size and degree of weakness, it is generally recommended that 2~4 fruit should be preserved in large fruit varieties. In the fruit type 6 to 8 fruit.
The third is timely pruning. After planting, in order to increase the photosynthetic area and promote root development in the underground area, appropriate rights may be reserved, but it shall not exceed 10 cm. With the development of the seedlings, the plant type, which is dominated by the main vine, is cultivated, and the right pruning is used in time to reduce nutrient consumption and influence ventilation.
IV. Pest and Disease Control With the increase of temperature and the prolonged release of air, the prevention of high temperature and humidity should be emphasized. Such as early blight with 58% Kelu 800 times, 500 to 800 times metalaxyl MnZn.
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