Latest Technical Points for Summer Fertilizer and Water Management of Tomatoes
Tomatoes are surely a vegetable everyone is very familiar with, and they have a very wide planting area in our country. They contain rich nutritional value, and when growing tomatoes, fertilizer and water management is very important. Especially in summer, if fertilizer and water are insufficient, it will affect the tomatoes' ability to overwinter through summer. So how should fertilizer and water be managed for summer tomatoes? Below, the editor brings you summer tomato fertilizer and water management. Let's take a look!
1. Water thoroughly at transplanting
When planting tomatoes in summer, pay attention to watering thoroughly at transplanting. Then during the seedling recovery period, water about twice with seedling recovery water, and then begin the seedling hardening work. Before the tomato plants set fruit, pay attention to controlling the amount of watering, and do not water heavily. Avoid the plants absorbing too much water, which causes excessive vegetative growth and affects fruit setting. The seedling recovery water is generally applied two days and five days after transplanting. At transplanting, an appropriate amount of diammonium phosphate can be placed in the planting hole to supplement phosphorus for the plants, promote root growth, and speed up seedling recovery.
2. Management after fruit set
Fertilizer and water management after tomatoes set fruit in summer is very important. This is because after tomatoes set fruit, their demand for nutrients and water rises sharply, and they need sufficient nutrients. In addition, summer temperatures are high, and water evaporates quickly, so attention must be paid to watering. Generally, water once about every 5 days, and do not water at noon, otherwise it is not only ineffective but also likely to scorch the plants. At the same time, strictly control the amount and do not apply too much, to avoid adverse phenomena such as waterlogging damage and fertilizer burn, which would instead affect tomato growth.
3. Fertilizing tomatoes
When fertilizing tomatoes, the fertilizer is mainly nitrogen and potassium fertilizer. Pay attention to controlling the nutrient ratio in the fertilizer at each stage. For example, in base fertilizer, the ratio of nitrogen, phosphorus, and potassium should be kept at about 1:0.5:1.4. The topdressing method is mainly flushing fertilizer, and about 5 flush applications should be made throughout the growth period, with water-soluble fertilizer as the main type. Pay attention to controlling the amount, and each application should be kept at about 10kg/mu. In particular, do not apply nitrogen fertilizer alone, to avoid excessive vegetative growth. Then, when the fruit turns red, appropriately reduce the amount of fertilizer and water to avoid fruit cracking. When topdressing, it is best to combine it with watering, and it is best not to water without fertilizer.
4. Medium and trace elements
Supplementing medium and trace elements for summer tomato plants is also very important. After tomatoes set fruit, we should pay attention to supplementing medium and trace elements for them. Boron and calcium fertilizer should be supplemented by foliar spraying, about once every 10 days, and about 5 sprays are enough. In addition, pay attention to the supplementation of other medium and trace elements. When supplementing calcium for the plants, an appropriate amount of humic acid spray can be added, which can enhance the plants' ability to absorb calcium. It delays the aging rate of plant leaves, reduces adverse phenomena such as wrinkled skin and fruit cracking, and improves the quality of tomato fruit.
The above is a brief introduction to summer tomato fertilizer and water management. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!