1. 1 parenting MES.

Tomato seedlings are generally cultivated in seedbeds, and the soil used for seedling cultivation is peat ash. In five tons of rotten chicken manure, 100 pounds of phosphate and 40 pounds of potassium sulfate will be added. Compound fertilizer, this tomato seedling can have enough nutrition in the process of culture and growth.

1.2 soaking in warm soup

The selected tomato seeds must be varieties with high disease resistance and high yield, and then the selected tomato seeds are soaked at 50 degrees Celsius, and the soaking process is continuously stirred for 15 minutes, then soaked in 10% Trika sodium solution for 30 minutes, then washed with water, and then the temperature is about 28 degrees Celsius. After 8 hours, if the seeds exceed 70%, the seeds can be sown white if observed in the amount of seed residue. Seed soaking has a good effect and cannot prevent early diseases and molds.

1.3 sow in time

The best time to sow tomatoes in early spring is1late October to February of the following year. Fill the seedling tray with nutrient soil, then sprinkle water, sprinkle the seeds on it, and then cover the nutrient soil evenly. After sowing, a certain amount of sweetening powder can be added to the strain, and then watered after stirring evenly, which has a good preventive effect on the occurrence of seedlings.

Secondly, the field management of chickpea cultivation in spring.

2. 1 water management

Water will be watered in early spring to ensure that the weather is watered, and tomatoes have strong drought resistance. In the process of planting water, then seedlings, planted trees, seedlings are not slow, no fruit can be produced without watering. The first batch of tomatoes can be poured with water and fruit to 2 cm, and can be poured many times in the future. Water, but the amount is very small. If the temperature is low, the watering times will be reduced, and the surface temperature will not decrease. In the case of dry soil, water can be released, and the soil humidity should not be too high, so that the fruit will fall off. In the process of tomato plant growth, suitable temperature and humidity can promote the rapid growth of tomato plants. Phosphorus and potassium compound fertilizer should be applied every 15 days during flowering and fruiting period, which can provide trace elements such as calcium and boron. Leaves.

2.2 temperature management

After planting, the temperature can be increased, which is very beneficial to the seedling raising method. If it is the result of flowering in cold weather, the temperature is too low and the humidity is too high, plants and fruits are harmful, especially the handle and pen will be layered, and the result will be reduced. Therefore, it is necessary to control the temperature during the growth period and keep the temperature in the greenhouse stable, so that tomato seedlings can grow healthily. The effective management of indoor temperature is mainly to avoid low temperature and high humidity, and the main function of indoor management is to increase or decrease the indoor temperature and stabilize it. In the later stage of tomato growth, we must pay attention to ventilation, the temperature in the shed should not be too high, and the humidity should be maintained, so that tomatoes can grow healthily. Cultivation techniques of tomato in early spring in greenhouse, water and fertilizer management, recommended collection.

2.3 Water and fertilizer management

Weeds will be planted during the growth of tomato seedlings, and growers must dismantle them in time, so weeds will not compete for the vegetative growth of seedlings, but grow and develop at the same time. Although there will be a lot of nutrients, but the growth will be slower, so we must give priority to fertilization. When the tomato plants grow the first fruit, they can start to fertilize, and use water and fruit to apply urea or compound fertilizer through the film to effectively reduce the humidity in the greenhouse. At the same time, it can be used with foliar fertilizer to improve the disease resistance of plants.

For the amount of fertilization and watering of seedlings, technicians must operate according to their actual growth conditions to ensure adequate fertilizer and water for tomatoes. When tomatoes bear more and more fruits, it is necessary to increase the amount of fertilizer and water. These two operations must be performed in the morning. This afternoon, the seedlings can fully absorb nutrients and carry out photosynthesis effectively. At the same time of photosynthesis, the leaves were sprayed with 1 compound fertilizer solution. If possible, the surface humidity must be effectively maintained. The best fertilizer for tomatoes is agricultural compound fertilizer. In addition, ammonium bicarbonate must be used, which will not burn tomato seedlings under ventilated conditions.

2.4 Factory management

After planting tomato plants, 778 inducer can be used at the root of the pot, and the top and bottom of the plant, as well as the growth of roots and fruits, which is very beneficial. At the same time, we must use a thin suit to book. In order to make the tomato fruit use a single branch, and there is only one main branch left in the middle, the lower part of five centimeters can only be knocked down. Three leaves. Removing the heart and flowers can avoid malnutrition and effectively increase the yield. At the same time, when tomatoes are too big for walnuts, they should be watered and fertilized once every seven days. Removing the old leaves of the first ear can achieve good ventilation and avoid the danger of excessive humidity.

2.5 Rapid management

It is necessary to have high-yield tomatoes and effectively manage sales. In early spring, at flowering stage, we will often encounter temperature and weather, lack of sunshine, and there will be fruit decline, so we should use anti-blood vessels. In order to protect the quality of tomatoes, plants have low-value fruits, leaving five fruits, which can be absorbed by the fruits and ensure the quality of the fruits. Usually, as long as you absorb the traffic. In early spring, the temperature is relatively low, which is beneficial for plants to receive light. It's good to beat Lao Ye. Choosing malformed or ILLU is beneficial to reduce nutrient consumption and to the goal of early maturity and high yield of tomato. Reach out. Cultivation techniques of tomato in early spring in greenhouse, water and fertilizer management, recommended collection.

Third, the prevention and control of insect-resistant nails of pollution-free tomatoes in greenhouse in early spring

The principle followed in the process of tomato pest control is prevention first and comprehensive management. Agricultural and physical prevention and control measures should be the first choice, and scientific fertilization should be adopted, and timely cleaning, fertilization and irrigation in rural areas should be carried out to ensure the disease resistance of plants. If the humidity is adjusted according to the requirements of the greenhouse, effective insect net facilities can be used in summer to prevent the growth of germs, and sunshade nets or plastic films can be used. This way can prevent the influence of pests and diseases; Use insecticidal lamps or high-voltage lamps to prevent pests; Ozone instruments can be used at night to prevent pests. If it is a serious pest, it is necessary to use the disease continuously.

Pests and diseases can be controlled by chemical methods. The spraying time of pesticides should be chosen in sunny days, and the dosage must be effectively controlled. Using dust method or smoking method can effectively prevent gray mold; Preventive and therapeutic effects of high moisture dispersible granules on early diseases: To prevent viral diseases, it is necessary to dismantle and clear the diseased plants in time.

Ecological prevention and control method, in order to prevent pests and diseases, control the temperature and humidity in the shed, such as 12 degrees Celsius, and exceed 12 degrees Celsius at night. It is necessary to leave a vent on both sides of the greenhouse. In the case of sunshine, the temperature in the greenhouse will rise rapidly, and the temperature in the greenhouse can be about 30 degrees Celsius, which is very beneficial to the prevention and control of pests and diseases, and the growth and nutrition can be balanced, so as to make growth. In order to ensure that tomatoes without pesticides can grow without pesticides.