How to plant cucumbers after autumn delay

1. Select heat-resistant and disease-resistant varieties

The main heat-resistant varieties are Jinyan 7, Jinza 2 and 4, Xiafeng 1, Xiaqing 4, Lu Cucumber 9 and 4, Zhongnong 8, Jinyou 1, Zhongnong 1101 and so on.

two。 Sowing at the right time

Shandong, Hebei, Tianjin and other places generally begin from late July to early August, and the growth period is generally about 100 days. The sowing density should be controlled at row spacing of 60 cm and plant spacing of 20 cm to 30 cm. Direct seeding and transplanting can be used for about a week from sowing to emergence, except for time seedlings, 200g compound microbial fertilizer (600g / mu) is irrigated per plant at seedling stage, or soil improver (100g / mu) is used to irrigate roots, which is beneficial to the early root development of cucumber and prevent the occurrence of root rot and quenching disease at seedling stage.

3. Scientific selection of fertilizer

Autumn delay cucumber growth period is relatively short, so water and fertilizer should be sufficient. Because the direct seeding cucumber could not apply enough base fertilizer in the early stage, it began to apply humic acid when the cucumber blossomed and fruited, using 20-40 kg per mu, and then each time the cucumber was picked, combined with watering, fertilizing and no empty water. Combined with topdressing, Fengshou No.1 and inducer should be sprayed once every 10-15 days for 3 times in a row, which is very necessary to prevent melons and curved melons and increase the yield. Cucumbers like organic fertilizer, especially to use a large number of rotten chicken manure and cow manure, it is recommended that 4000-5000 kg per mu, mixed with 400 kg-480 kg bio-organic fertilizer and 30 kg potassium sulfate (3 × 15) compound fertilizer as base fertilizer.

4. Strengthen the management of melon and seedling

The growth period of autumn delayed cucumber is short, and the fruiting period is only more than 40 days, so it is necessary to promote seedlings and not be too prosperous in the early stage. Through the cultivation of strong seedlings to promote the differentiation of flower buds. In the early stage of melon fruiting, the main vine is mainly melon, and more than 12 lateral branches are removed. After waist melon, 3 or 4 side branches should be left, and each side branch should leave one melon leaf to pick the heart, so as to achieve the effect that the main and side branches bear melon at the same time. In the later stage of melon, it is suitable to remove the old and diseased leaves at the bottom, reduce the nutrient consumption and ensure the growth of melon strips. In order to increase the number of female flowers, growth hormone ethephon treatment can be used, the concentration should be controlled in 100ppm, spray cucumber plants in the morning, spray once every two days, a total of 3 times. Note that the concentration should not be too high. If the concentration is too high, it is easy to cause flower topping and drug damage. Melon significantly increased after spraying, fertilizer and water should be closely followed to ensure adequate fertilizer and water in order to increase the yield.