Tomato seedling management should grasp the word "control"

After the tomato was planted, some vegetable farmers suspected that the seedlings grew weak, and increased the supply of fertilizer and water during the seedling stage, resulting in serious tomato growth, and the first to second ear fruits were obviously small and deformed. Therefore, tomato seedlings should be watered as little as possible or not, and not fertilized. When the first spike of the tomato has a walnut size, the ternary high potassium compound fertilizer is applied to promote the fruit expansion. After applying twice high potassium fertilizer, the NPK balance fertilizer was applied once to avoid high nitrogen and potassium in the soil and affect plant growth.

The stalks of the early seedlings are thin and not hollow, the leaves are small and thick, and the leaves are dark green. Such tomato seedlings can obtain high yield in the later stage; on the contrary, the seedlings have sufficient fertilizer and water, the seedling stalks are thick and hollow, the leaves are large and tender, and the leaves are more Light, such tomato seedlings are long seedlings, but not strong, often the first to third ear of the plant fruit set rate is low, the fruit is small, resulting in low yield in the early stage.

The main reason for the growth of tomato seedlings is that the vegetative growth in the seedling stage is too strong, affecting reproductive growth, resulting in an imbalance between vegetative growth and reproductive growth. The management of tomato seedlings should focus on the word "control" to increase production, especially in the early stage.

In addition to water control and fertilizer control, you should also pay attention to temperature control. It is found that the plants have signs of lengthening, and the temperature in the shed should be adjusted in time to avoid excessive temperature. At the same time, pull the temperature difference between day and night, the temperature difference should be at 10 ° C, or with plant growth regulators such as piperazine control, pay attention to the concentration of liquid can not be too large.

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