At this critical time of spring production of vegetables in our province, the provincial agricultural institutes have provided guidance on the production of yellow autumn in the light of the climatic characteristics of this spring and the results of many years of technological innovation。
Climate projections
According to the provincial meteorological service, it is expected that the spring will return to warmer early this year, with slightly higher temperatures and a moderate low temperature period; precipitation will be minimal, with a clear low rainfall period between april and may in the mid-western region, with a potential for a phased drought. It is expected that the end of spring will be a little early, that the first heavy rains in the centre-west will be close to the year or a little later, that the amount of peach water in the eastern mountains will be similar to the year, and that there will be slightly more wind days in the province than in the year。
Specific measures
Diversity selection. The selection has been made through the registration of varieties (filed), locally appropriate, high-quality, productive and disease-resistant varieties. At present, the main crops in our province are h5f and h5f。
Seed treatment. Select the seeds that are full of grains, without damage. The seed is immersed in warm soup before seeding, immersed in warm water of 50°c ~ 55°c and continuously mixed for 15 minutes. Naturally reduced to room temperature, 20-25 degrees celsius and 12 hours leaching. The leachate is washed clean and sprung into a thermostat of 25-30 degrees celsius for 24 hours, so that half of the seeds can be planted when they are white。
Fertilizing the whole place. Before seeding, the land is cultivated at depths of 20 to 30 centimetres, with the application of foot-based fertilisers of 600 to 700 kilograms of potassium sulphate per hectare, in the form of flat or high cultivation。
And sowing. When outdoor temperatures are stable at above 18°c, 10 cm of ground temperature is stabilized at above 10°c by water sowing, which is appropriate around mid-may. The range of the line is 40 cm x 60 to 65 cm (one per cent per 5 cm). 2 to 3 grains per den and 2 to 3 cm of covered soil。
Field management. When the first leaf spreads, the first sapling is carried out to remove the sick and weak. When two to three leaf leaves spread, a seedling is left in each den. The planting of seedlings should be done in a timely manner to prevent the planting of plants. Autumn is a wet-resistant plant with frequent watering and soil humidity during flowering. In addition, urea should be administered three times during the seedlings, primary fruits and fruits to promote production. In late july, a whole branch (approximately four times every 10 days) was removed from the old, sick and invalid side branches, which facilitated ventilation and reduced nutritional consumption。
Pest control. Autumn sunflowers are highly resistant, and few pests and pests occur, so that they can be grown in unharmed vegetables. Prevention is the main focus。
Harvest. The best pick-up period for yellow acorns is when the fruit is approximately 8 to 10 cm in length, the first fruit is harvested the following day and the fruit is harvested daily。
