It is the right time for autumn vegetables to grow seedlings

Recently, the temperature continues to rise, with sufficient sunshine, increased rainfall, high temperature and muggy heat. Most of the melon and fruit vegetables in the greenhouse entered the seedling pulling period, and some heat-resistant open-field vegetables entered the harvest period, which was also the key period for raising seedlings of cauliflower, cabbage and tomato, pepper and eggplant in autumn greenhouse. The suitable sowing time for carrots, precocious cabbage and cucumber in open field. At present, it is necessary to do a good job in harvesting, raising seedlings and sowing seeds under high temperature and extreme heat to ensure an annual increase in production and income.

A, cauliflower, cabbage, turnip, lettuce and other crops planted in the open field in autumn

The seedlings were raised from the end of July to the beginning of August. Cucumber in open field, selected heat-resistant, early-maturing and disease-resistant varieties, was sown in the first and middle of July and supplied to the autumn off-season market from late August to early October. It is necessary to apply enough organic fertilizer to make a high border of tile ridges, not covered with plastic film, and plant at a density of 70 cm 75 cm × 30 cm 33 cm.

B, chili peppers, sweet peppers and colored sweet peppers planted in solar greenhouse in autumn

If the seedlings are raised in late July, the greenhouse with poor thermal insulation should be bred 5-10 days earlier, and the color sweet pepper should be properly bred early, and the suitable sowing time is in mid-July; generally, the seedling age is 45-50 days, planted from late August to early September, and harvested and put on the market during the early November to the Spring Festival. In the greenhouse with good ventilation and low temperature, 50-hole plastic hole plate was used, and the special substrate or peat, vermiculite and perlite were used as substrates. Soak seeds in warm soup and accelerate germination in 25 ℃ ~ 30 ℃ for 6-7 days, and sow seeds when they germinate.

C, greenhouse tomato in autumn and winter

Generally, seedlings are raised in mid-late July, planted in mid-late August, and harvested from mid-November to mid-January. Greenhouse with poor thermal insulation performance should raise seedlings early. In recent years, tomato yellow leaf curl virus disease has occurred seriously. once the infection occurs, it often leads to a significant reduction in production, or even no harvest. The best prevention method is from the seedling stage, using sunshade net, greenhouse film anti-rain, anti-insect net and other "full protection" measures to cultivate strong seedlings, strictly prevent Bemisia Tabaci transmission.

D, cucumber in autumn greenhouse

Cucumber was planted in late July, and cucumber varieties such as "Zhongnong 16" with early maturity, disease resistance and good quality were selected to raise seedlings in the middle of July and in the first ten days of August, using 72-hole plastic hole trays and peat, vermiculite and perlite as substrates. Cucumbers can also be sown directly in late July.

E, celery in autumn greenhouse

When planted in the first and middle of September, the seeds must be accelerated by low temperature before sowing. After soaking the seeds for 24 hours, rub the seeds with hands to remove the germination-inhibiting substances from the seed coat, and then put them in the environment of 17 ℃ ~ 20 ℃ for 6-7 days, which can be placed in a place 50 cm above the water surface of the machine well to accelerate germination. When the seeds begin to sprout, sow the seeds and cover the seedling shed with shade and rain.

F, precocious Chinese cabbage

Precocious and heat-resistant varieties such as "Xiaoza 56" and "Betty" are selected to be harvested and listed before and after the National Day and Mid-Autumn Festival. It is necessary to apply sufficient basic fertilizer, fine soil preparation, watering between rows to cool down after sowing, and to prevent diseases and insect pests such as virus diseases, aphids and cabbage pests from the seedling stage.

G, autumn stubble open field carrots

Sowing began in mid-late July, selecting high-quality and high-yield varieties such as "Hongxin 228" with beautiful root shape and three red peel, pulp and core. 4000 kg of rotten and fine-crushed high-quality organic fertilizer or 3000 kg of commercial organic fertilizer are applied per mu. After fine ploughing and fine finishing, the seeds are sown in high beds and sowed evenly, using about 300g per mu. (gan Min)