Detailed Explanation of Key Management Techniques for Eggplant at the Seedling Stage
Eggplant is a fruit vegetable that many people enjoy eating very much, and its planting area in our country is very large. When growing eggplant, we need to carry out management work well according to the growth stages of the eggplant. Especially during the eggplant seedling stage, its management work is particularly important, so attention must be paid to doing a good job in eggplant seedling stage management. So how exactly should it be managed? Today, the editor brings you the management techniques for the eggplant seedling stage. Let us take a look together below!
1. Temperature management
Before the eggplant emerges, its daytime temperature should be maintained at about 25°C, and the film should be kept sealed. Every morning, pay attention to covering the straw mat well, and then uncover it every evening. This can speed up the time for eggplant seedlings to emerge. During the period from eggplant emergence to seedling separation, the daytime temperature must not exceed the range of 25-28°C, and the day-night temperature difference should be maintained at about 10°C. After the seedlings emerge, remove the plastic film to provide them with light. After seedling separation, the temperature remains unchanged, but one week before planting, pay attention to appropriately lowering the temperature to harden the seedlings. When the heart leaves of the eggplant seedlings grow, increase ventilation and gradually lower the temperature to avoid seedling flash.
2. Soil covering in stages
When sowing, we need to cover a layer of fine soil. Then during the eggplant seedling stage, we should also pay attention to doing a good job of covering soil in stages. Generally, after the eggplant seeds push through the soil and emerge, and after the seedlings are fully up, appropriate soil covering should be done. In addition, every time thinning and watering are done, a layer of fine soil should also be appropriately covered. Before covering with fine soil, we first need to prepare it in advance. The fine soil to be used for covering should be preheated in the greenhouse before use, and then attention should also be paid to the thickness of the soil cover. It must not be too thick and should be maintained at about 0.2 cm.
3. Thinning and weeding
During the eggplant seedling stage, we should also do a good job of thinning. Usually, thinning should be done about twice throughout the entire seedling stage, and the first should be carried out before seedling separation. When the seedlings have grown about two cotyledons, carry out the first thinning. The seedlings that are too densely grown should be separated, and the spacing between each robust seedling should be maintained at about 1 cm, with no double plants left. Then, when the first true leaf of the seedlings unfolds, carry out the second thinning, following the principle of keeping the good and removing the poor, with the spacing between seedlings controlled at about 2 cm. Then, when thinning, we should also pay attention to doing a good job of weeding to prevent weeds from taking away the nutrients for eggplant growth.
4. Timely seedling separation
When the eggplant seedlings have grown about 3 leaves, we need to do a good job of seedling separation. If seedling separation is done too late, it will cause the eggplant seedlings to grow too crowded and affect flower bud differentiation. About three days before seedling separation, we should water once to facilitate full emergence later and prevent damage to the roots. Then, when lifting the seedlings, carry out grading according to the size of the seedlings and plant them separately. Also, before seedling separation, prepare the soil in advance, level it, control the row spacing at about 10 cm, dig planting furrows about 3 cm deep, and then pour in an appropriate amount of warm water to begin seedling separation.
The above is a brief introduction to eggplant seedling stage management techniques. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!