How is highland cropping of open field eggplant? The early-maturing varieties of eggplant include Lujia No. 1, Jinan early small long eggplant, Beijing six-leaf eggplant, and Dezhou small flamingo. The middle and late-maturing varieties include Jinan long-large eggplant and Gaotang purple round eggplant. When planting eggplant, it is most suitable. Variety, the next small series will specifically talk about eggplant seedling planting, field management points, I hope to help everyone.
First, the selection of open field eggplant varieties
Selection requirements for open field eggplant varieties: The appropriate eggplant varieties should be selected according to the local market consumption habits and planting environment.
Second, the open field eggplant seedling method
1. Breeding time: In the middle and late January, it is carried out in a hotbed or well-preserved impotence. In mid-March, the impotence is divided into seedlings.
2. After planting and emergence, the temperature of the seedbed should be controlled within the range of 25-30 degrees and the surface temperature of 16-22 degrees. The temperature of the seedbed should be controlled at 25 degrees during the day and the temperature of the seedbed should not be lower than 15 degrees at night.
3, 7-10 days before planting, you need to increase the ventilation, while keeping the daytime temperature within 20 degrees, the night temperature is not less than 12 degrees
4. If you raise the seedlings by heating the greenhouse or electric hotbed, you need to water them in time to avoid the emergence of dead seedlings.
5, when using seedlings to raise seedlings, because the basement is easily cut off by the nursery, it needs to be watered in time.
Third, planting and finishing
1. Requirements for planting land: soil with abundant organic matter, deep soil layer and good drainage.
2, eggplant planting taboos: avoid heavy sputum, the first sputum is best 3-4 years without the solanaceae crops of beans, onions and garlic and other vegetables in the field.
3, the use of polyethylene transparent film, soil surface temperature can be increased by 2-4 degrees, but also help to maintain soil moisture, protect plant roots, enhance root activity and promote plant growth.
4, spring dew eggplant needs to be at a temperature above 15 degrees, 10cm low temperature can be fixed at 12 or more.
5, cover the film should be tightly covered, so as not to be blown by the wind to tear.
6, eggplant seedlings should choose the large flower buds of the seedlings planted, planted after planting water.
7. When planting, you can use the method of increasing the line spacing and reducing the plant spacing, and widening the dense planting.
8. The number of planting plants per mu of eggplant is 2500-3000 for early maturing varieties, 2000-2500 for medium-maturing varieties, and 1500-2000 for late-maturing varieties.
Fourth, open field eggplant field management considerations
1. The fruit development process of eggplant: bud stage, flowering stage, blinking stage, commodity maturity stage and physiological maturity stage.
2, 15 days after the spring dew eggplant planting, pay attention to the preservation of flowers and fruits.
3, the results of eggplant in the early stage need less water and fertilizer, the results need more water and fertilizer in the later stage, scientific and reasonable watering and fertilization.
4, eggplant plants are not prone to prolonged phenomenon, so the requirements for seedlings are not high.
5. The underlying weeds covered by the mulch film are basically no longer germinated, so there is no need to carry out weeding, cultivating and cultivating soil.
6, eggplant leaf mites have poor branching ability, so no pruning is required.
7. The use of growth regulators can effectively prevent falling flowers caused by temperature discomfort and promote fruit setting.
8, malformed fruit sometimes occurs in the process of eggplant planting, common double-bottled eggplant, dull fruit, zombie and cracked eggplant.
9. After the autumn turns cold, some vegetable fields and eggplants are easy to get fruit rust, which seriously affects the commercial value of the fruit.
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