Pruning, reaching for the frame and tying the vine: put a herringbone frame after the first ear fruit bears. There are two main pruning methods. One is to leave only the trunk and remove all the side branches (it is advisable to remove the side branches when they are 4-7 cm long), which is called single stem pruning.
The other is to leave side branches under the first inflorescence except the trunk, and all other side branches are removed, which is called double trunk pruning. No matter which pruning method is adopted, attention should be paid to tying vines in time.
Extended data:
Introduction of other cultivation techniques
1, temperature
From sowing to the appearance of the first real leaf (heartbreak). This period is 7-9 days at room temperature; Seedling stage refers to the period from the appearance of the first true leaf to the appearance of the first inflorescence. The suitable daytime temperature is 25-28℃, and the nighttime temperature is 13- 17℃. The ground temperature in this period has a great influence on the growth of seedlings, and the suitable ground temperature should be kept at 22-23℃; The first flowering and fruit-setting period refers to the period from the first inflorescence to fruit-setting.
2. Timing
Early-maturing cultivation in Qiandongnan should be planted in the middle and late October of 165438+ 10, and in other places it should be planted in the middle and late February of 65438+and in the middle and late May as autumn extension cultivation.
3. Land
Tomatoes can tolerate drought, but not waterlogging, and the requirements for soil are not very strict. To obtain high yield, we must choose soil with deep soil layer, loose and fertile soil and strong water and fertility conservation.
Step 4 apply fertilizer
After deep ploughing and harrowing, open boxes with a width of 80cm, a height of 16-24cm and a width of 33cm, and plant two rows in each box. When applying fertilizer, the reasonable ratio of nitrogen, phosphorus and potassium is 1: 1:2, and 3000-5000 kg of decomposed organic fertilizer, 25 kg of calcium superphosphate and 20 kg of potassium fertilizer (or 80 kg of plant ash) are applied in combination.
Baidu encyclopedia-tomato
Baidu encyclopedia-tomato