How to Grow Eggplants for High Yield? A Detailed Guide to Practical Cultivation Techniques
Eggplant is a major vegetable during the autumn off-season. To harvest in autumn, sowing must begin in summer. However, under the high temperatures and heavy rain of summer, eggplants face threats from heat, wind and rain, as well as pests and diseases, which can cause unstable yields. In fact, during the cultivation of eggplants, as long as the corresponding management is done well, the yield can be gradually increased. So how should eggplants be managed? How can they be managed to achieve high yields? Let's take a look below!
1. Transplanting Strong Seedlings
The best time to sow autumn eggplants is from May to June, generally using varieties such as the purple long eggplant. For open-field seedling raising, seed soaking and germination should begin about a week in advance. Soaking requires warm water at around 50°C, stirring continuously in the warm water until the temperature drops to around 30°C, then soaking the seeds for 9 hours. After soaking, wrap the seeds in a wet towel and place them in an environment above 30°C to begin germination, washing the seeds at least twice a day. After a week, once half of the seeds have sprouted, they can be sown. When the seedlings grow to 15cm with 8-10 leaves, after about a month, they can be transplanted. Select strong, well-growing seedlings for planting out, with a planting density of 50-50cm. It is best to do this around 4 p.m. After planting out, water thoroughly, then water again the next day.
2. Topdressing and Watering
After successful planting out and normal growth, fully decomposed farmyard manure should be applied immediately as a topdressing, with the amount depending on the planting area, or a total of 20 jin of compound fertilizer per hole. When the eggplants begin to swell, at the early swelling stage, 1450-1550 kg of farmyard manure or a total of 30 jin of compound fertilizer per hole should be applied as a topdressing. Finally, at the fruit ripening stage, 1950-2050 kg of farmyard manure or 40 jin of compound fertilizer should be applied as a topdressing. Eggplants also have a high water requirement, needing large amounts of water at every stage. Whether during the sepal stage, the stem-strengthening stage, or the final harvest stage, about 3 days before harvest, water should be flushed through once to facilitate fruit swelling and give the skin a bright, glossy appearance.
3. Pruning and Removing Shoots
Eggplant flowering and fruiting at each stage follows a strong pattern, so generally the branches at each layer should be retained. Using the open-center pruning method, retain branches growing toward the opposite fork's slanted surface or growing horizontally, and cut off all the rest. After all the young eggplants have set firmly, all the shoots that grow afterward should also be removed completely. The same applies after flowering: regularly top and pinch out the growing tips of the eggplants. This helps the eggplant absorb nutrients and is more conducive to normal growth and development.
4. Disease and Pest Control
Summer and autumn happen to be the peak period for pests and diseases, so at this time pests and diseases must be strictly guarded against. Combined with intertillage, weed and earth up the soil, carrying out intertillage at least twice to completely eliminate the weeds. Pests and diseases such as cotton blight and eggplant stem borer, when severe, can cause eggplant yield reduction or even total crop failure, losing its commercial value. Therefore, a series of pesticides can be used to prevent and treat pests and diseases. However, pesticide use should be stopped one week before harvest to prevent pesticide residues from harming human health.
The above are the management methods for achieving high yields in eggplants. The main things are to do a good job with fertilization and pest and disease control. As long as these two things are done well, the yield and quality of eggplants can be greatly improved. Eggplants require special attention to pests and diseases, because if they are not handled well, they can cause yield reduction or even total crop failure, having a huge impact on farmers.