Technical points of planting and Management of Tomato

1. Do a good job in the management of childbearing period. Including ploughing and weeding, water storage and soil moisture conservation, strapping vines, pruning and branching, removing old leaves, ventilation and transparent light, strengthening the prevention and control of diseases and insect pests, strengthening temperature management and other measures. Among them, tomato diseases are mainly virus disease, bacterial wilt, early blight, late blight and so on; pests are mainly cotton bollworm, aphids and so on. Tomato diseases can be prevented and difficult to treat, so we should give priority to "prevention". The prevention and control methods of virus diseases are as follows: selection of disease-resistant varieties, seed disinfection, seed stubble, prevention and control of aphids, early planting and so on. Temperature management is to appropriately increase the ventilation rate of the shed during the day to keep the temperature in the shed at about 25 ℃. The night temperature is kept between 10-13 ℃. At the beginning of the vent, the vent should be from small to large, from less to more, and gradually reduce or close the tuyere after the temperature drops in the afternoon.

two。 Do a good job of fertilizer and water management. The growing period of tomato generally does not need watering in the summer and autumn rainy season, but when the 2nd ~ 3rd ear is ripe in case of drought, it should also be watered properly. According to the growth of tomato plants, topdressing should be applied timely to promote fruit development and protect flowers and fruits. The yield of color and sweetness of tomato with bacterial fertilizer is several grades higher than that of tomato without bacterial fertilizer. generally, Gymboree microbial fertilizer can be applied as base fertilizer, and topdressing can be applied to Gymboree root seedling or seedling, if Gymboree Zengtianling is sprayed, it will make it look better. For individual greenhouse element deficiency phenomenon is more serious, can be sprayed Gymboree tonic to encourage the spirit (promote growth and increase yield), has a special effect.

3. Pick the fruit at the right time. There are four stages of tomato ripening: green ripening, discoloration, ripening and ripening. Storage and preservation can be harvested in the green ripening period. The transport sale can be picked during the discoloration period (the fruit turns red at 1pm 3). On-the-spot sale or self-feeding should be picked during the ripening period, that is, when the fruit turns red above 1 / 3. It should be picked and handled gently when harvesting, and it is best to pick without fruit stalks, so as to prevent the fruits from being stabbed each other during shipment. In the fruit ripening period, it is not suitable to use hormone to stimulate fruit coloring, after selection, it is packed for sale. Its advantage lies in that it not only reduces the production cost, improves the fruit quality, but also ensures the food safety of consumers. Wei Junjie