Key Points of Fertilizer and Water Management Techniques for Tomatoes in Summer
Tomatoes are surely a vegetable everyone is very familiar with, and they are grown across a very wide planting area in our country. They are rich in 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, be sure to water thoroughly at transplanting. Then, during the seedling recovery period, water about twice with seedling recovery water before starting the seedling hardening work. Before the tomato plants set fruit, be careful to control the amount of watering and do not water heavily. This avoids the plants absorbing too much water and growing excessively, which would affect 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 holes to supplement phosphorus for the plants, promote root growth, and speed up their recovery.
2. Management after fruit setting
Fertilizer and water management for tomatoes after fruit setting 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 be sure to do a good job with watering. Generally, water about once every 5 days, and do not water at noon, otherwise it will not only be ineffective but also easily scorch the plants. At the same time, strictly control the amount used and do not apply too much, so as to avoid adverse conditions such as waterlogging and fertilizer damage, which would instead affect tomato growth.
3. Fertilizing tomatoes
When fertilizing tomatoes, the fertilizer should mainly be nitrogen and potassium fertilizer. Be careful to control the nutrient ratio in the fertilizer at each stage; for example, in the 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. Be careful to control the amount used, 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 with plain water only.
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 spray, spraying about once every 10 days, and about 5 sprays are enough. In addition, pay attention to supplementing 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. This slows down leaf aging, reduces adverse conditions such as wrinkled skin and cracked fruit, 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 I hope it can help everyone!