First, the application of "no deep ploughing" and "shuofeng 481" effect of tomato in autumn

Field trials in recent years have pointed out that the use of soil conditioners “avoiding deep plowing” and “Shuofeng 481” for autumn tomatoes have yielded 352-463 kg/mu and 211-363 kg/mu respectively for autumn tomatoes, with an increase rate of 8.7-11.5%. 5.2-6.5%.

II. Field Management of Fall Tomatoes

Autumn Tomato Field Management Technology includes:

1. Stretching and arranging vines: After planting and survival, it should be struck in a timely manner. Use bamboo rods or tree strips that are 1.6-1.8 meters long and with thick index fingers, and insert them firmly into the 8-10 cm groove side of the plants, and combine them into high-strength frames. . When the plants grow to a certain height, tie the vines with cloth or plastic ropes in order to ensure the normal growth of the tomato plants.

2. Pruning buds: Pruning buds are an important technical measure to manually adjust the vegetative growth and reproductive growth of plants. In the summer and autumn, the tomato generally adopts the double-pole pruning method, that is, in addition to leaving the main stem, leaving one of the strongest lateral buds in the lower first inflorescence, the resulting lateral branches and all other buds are removed. It is an unlimited production variety. In order to ensure uniform and consistent fruit, when the fruit setting rate reaches the output target, depending on the plant growth status, it can be topped in a timely manner. When the lateral buds are about one inch long, they should be promptly removed. Too early and too late are unfavorable for plant growth and development. It is not appropriate to pick buds in rainy days to prevent infection.

3, top-fat irrigation: Tomato topdressing with pig manure, compound fertilizer, urea and other fast-acting fertilizers as well, top dressing should be considered reasonable depending on the weather, seedlings, dry weather should be dilute fertilizer application, after rain or irrigation before the appropriate increase, Grasp the principle of light weight and light weight, that is, lightly promote seedling fertilizer before fruit set, especially to control nitrogen fertilizer, fruit expansion period and harvest period, should be top dressing regularly, each time 10-20 tens of leaching wastewater or compound fertilizer per acre. 6 kg, the top dressing should be 3-5 inches away from the root, spraying micro-fertilizer is an economic and effective measure to supplement plant nutrition, can be combined with spray fungicide, regularly spraying "high-energy red potassium" and other trials safe and effective leaf leaven. At the same time, with the application of “no deep plowing”, 200 grams of water per acre will be mixed with 100 kg of water and sprayed on the wet topsoil. This will increase the permeability of the soil, promote the growth of tomato roots and increase the fertilizer of tomatoes. The utilization rate reduces the soil-borne diseases of tomatoes in the planting area.

4, Baohua Baoguo: Autumn tomato flowering period, mostly in arid climate conditions, adverse pollination insemination, affecting fruit setting, most varieties are required on the day of flowering, spraying "Shuofeng 481" for flower protection, spraying Just spray it on the leaf.

5. Prevention and control of major diseases and insect pests: Diseases commonly occurring in tomato in the summer and autumn include diseases such as late blight, cotton blight, leaf mold, and black shank, and can be used for the inoculation of bacteriols, virucides, virucides, antivirals, neophytes, chlorothalonil, and chlorothalonil. Can be used to kill pesticides such as foliar spray control; bacterial wilt, ulcers available agricultural streptomycin, chlorothalonil and other agents spraying and rooting control; mosaic disease, fern leaf disease, streak disease available virus A, planting Diseases, bacteria, poison and other agents spray control. Insect pests mainly include: cotton bollworms and aphids. Cotton bollworm should be sprayed every 5-7 days in the flowering period, such as BT insecticide, instigator and other high-efficiency low-toxicity low residual insecticide, and often change the application, the locust can be used anti-inhalation, dimethoate spray poisoning.

6. Harvesting: Summer and autumn tomatoes ripen earlier than spring tomatoes, and the coloration is fast. Mature fruits are easy to soften and metamorphose. Near-sales should be harvested after the fruits begin to turn red, and transported at a long distance, should be harvested at the ripening stage or coloring stage. Received. (Institute of Soil and Fertilizer, Guangxi Academy of Agricultural Sciences)

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