How to apply fertilizer skillfully to promote high yield of eggplant?

Eggplant is a popular vegetable, which is delicious, soft and glutinous. In recent years, the planting efficiency of eggplant has been improved, and more and more growers use it as a planting variety. So when does eggplant usually grow? How to apply fertilizer skillfully to promote high yield of eggplant?

When is the eggplant usually planted?

When eggplant is cultivated in early spring, whether in open field or protected field, the seedling age is mostly 80-90 days. The seedling raising time is determined according to the planting time, and the planting time is determined according to the cultivation environment and ground temperature.

Generally cultivated in early spring, the lowest ground temperature of 10 cm is stable at more than 13 ℃ before it can be planted. It can be planted in solar greenhouse when the ground temperature is more than 15 ℃ and the air temperature is more than 20 ℃. After determining the planting time, it is estimated that about 80-90 days is the time of sowing and raising seedlings.

Second, how to apply fertilizer skillfully to promote high yield of eggplant?

Eggplant is a deep-rooted vegetable, which has a long growth and fruiting period and needs a large amount of fertilizer in its lifetime. According to research, for every 1000 kg of eggplant, it is necessary to absorb 3.0kg of nitrogen, 0.9kg of phosphorus and 4.0kg of potassium. From the perspective of nutrient absorption of eggplant at each growth stage, the absorption of nitrogen, phosphorus and potassium at seedling stage only accounted for 0.05%, 0.07% and 0.09% of the total absorption, respectively. From the early stage of flowering, the absorption of eggplant accounted for about 7.0%, 7.0% and 6% of the total absorption, respectively. From the full fruit period to the end of harvest, the absorption of eggplant accounts for more than 90%. Therefore, the full fruit period is the period when eggplant needs the most nutrients in its life.

According to the standard of light application of seedling fertilizer, steady application of flower fertilizer and heavy application of fruit fertilizer, after planting slow seedlings, combined watering, thin application of manure or 5 kg of your compound fertilizer, you will apply thinly every 10 days to meet the needs of seedling development. The application of vegetable and fruit Zhuangtieling before flowering, young fruit stage and expansion stage can activate the positive energy of plant ecological growth, broaden the path of plant ducts, enhance the intensity of water and fertilizer absorption, improve fruit yield and quality, and reduce the rate of fruit drop. Reduce the incidence of cracked fruit, stiff fruit and abnormal fruit. After the first harvest, it is necessary to re-apply topdressing, you can combine ploughing and soil cultivation to bury the fertilizer in the soil, and you will apply it every 10 days or so to meet the needs of the continuous development of the fruit. The most prosperous era of fruit harvest is also the time when the most fertilizer is needed, and the amount of fertilizer should be increased. In the middle and early stage, the plant aging, fertilizer absorption decreased, can accept the main points of topdressing outside the root, as usual foliar spraying photosynthetic nutrient film fertilizer and foliar fertilizer can be.

In order to meet the requirements of long growth period and large nutrient requirements of eggplant, eggplant base fertilizer should be based on organic fertilizer, generally applying organic fertilizer 57.7 tons per mu, and properly mixed with 45% nitrogen, phosphorus and potassium compound fertilizer 1015kg, so as to coordinate the supply of nutrients in the early and later stages.

Generally, the eggplant begins to be topdressing after planting, and the planting combined with watering slow seedling water can apply a thin fertilizer. When the flower buds of "men eggplant" open and bear fruit, topdressing fruit-promoting fertilizer in time, 2-3 kg of nitrogen fertilizer can be used per mu; when "men eggplant" is fully expanded and "opposite eggplant" begins to expand, eggplant enters the peak of fertilizer demand period, topdressing should be re-applied, and 45% compound fertilizer will be applied by 15-20 kg per mu. After that, with the increase of eggplant harvest, nitrogen fertilizer was applied to the seedlings every 10 days to prolong the harvest period.