Pruning and rejuvenation of eggplant in mountainous area can increase yield skillfully

Eggplant is a temperature-loving crop with high temperature tolerance, and the suitable temperature in fruiting period is 25-30 ℃. Making use of the habit of strong regeneration ability and quick recovery of eggplant, the pruning and rejuvenation technology of mountain eggplant was carried out in the period of high temperature and humidity in summer and autumn and frequent occurrence of diseases and insect pests. In late summer and early autumn, eggplant quickly recovered its growth and development, effectively improved its yield and quality, prolonged the growth and cultivation period, avoided the peak listing period of mountain eggplant, and realized the batch listing of the products in the off-season in summer and autumn, and achieved good economic and social benefits. The average yield of eggplant in mountainous areas is more than 6000 kg per mu, and the output value is as high as 15000 yuan.

First, pruning and picking leaves

Using double-trunk pruning, the door eggplant (the fruit on the main stem of eggplant) sat firmly and erased the lower axillary buds, and then erased the lower axillary buds respectively after flowering, leaving only two upward main branches. After closing ridges, the old leaves, diseased leaves and yellow leaves on the branches were removed in time, and the 8th ~ 9th fruits were plucked in time after sitting, and the branches and leaves were cleaned at the same time, so as to facilitate ventilation and light transmission, reduce the spread of diseases and pests, concentrate nutrients, and promote the rapid coloring and early ripening of fruits.

2. Pruning treatment

The fruit was pruned in the middle and later stage of fruit growth in the Bamianfeng (the fruit on the primary side branch), and when the weather turned to the early incubation period, choose sunny day before 10:00 or after 4 pm or cloudy day, and keep 3 cm pruning in the first and second side branches. If there are conditions, you can use wax to seal the cut, while cleaning the ground branches and leaves and concentrated burning. After pruning, half-ditch water was irrigated and irrigated at night and drained during the day to keep eggplant fields moist.

III. Post-cutting management

After pruning, the axillary buds germinated and began to grow on the 2nd to 3rd day, and 50% carbendazim wettable powder or 77% carbendazim (copper hydroxide) 1500-fold wettable powder should be sprayed 2 times and 3 times in time to control leaf diseases of new shoots and aphids. Excessive germination of axillary buds is often caused by pruning stimulation. When the new shoot grows to about 10 cm 5-7 days after pruning, the excess axillary buds should be removed in time, and only 1-2 new shoots are retained in each side branch. After that, it will be transferred to routine management. Eggplant can be harvested 35-40 days after planting or 25 days after pruning. When the white or light green band of eggplant eyes is not obvious, the fruit shows the inherent color of the variety, and it is the right time to harvest when it feels soft and sticky. The yield per mu can reach 2900 kg in the early stage and 3200 kg in the later stage, with a total yield of more than 6000 kg. Fruit picking should be carried out in the morning, when the eggplant is the fullest and the luster is the brightest. Packaging should be graded before listing and shipment, and high quality and high price should be implemented.