I. Fertilizing the whole area
The fields prepared for the planting of the autumn are to be ploughed in a timely manner after the pre-harvesting, with 30 centimetres of deep tillage, in order to deepen the cortex, further defusing the soil and increasing soil conservation capacity. Before planting, the land was fine, flat, loose, soft and thin. The autumn needs to be more fat, with 5,000 kg of decomposition and 20 kg of compound fat per acre spread over the ground, and then deep into the ground, so that it can be ploughed, so that it can be mixed, and then can open a ditch to make a gutter. It is also not appropriate to pick fruit and vegetables as a front。
Ii. Requiring
The use of live broadcasting also allows for seeding. In general, planting took place in mid-may, planting was scheduled in mid-june and heavy harvests were made in august。
Iii. Fine seeding
Autumn seed skins are hard and should be seeded at 25°c after 12 hours of impregnation until 60% — 70% of the seed is seeded. The seeding takes place on a spot, 85 centimetres wide, 30 centimetres wide, 1 row per twilight, 30-35 centimetres apart, 2-4 grains per lair and 2-3 centimetres deep. First watering, then seeding, then soiling about 2 cm. More use is made of nutrients and dens, which sow two seeds per den and two or three real leaves。
Iv. Smizico
When the autumn is sprouts, it leaves two in each den when two or three real leaves are removed. After the seedlings are released, weeding is done in a timely manner, approximately once every 10 days. Before opening up, the first flower should be cultivated in china, with proper seedlings to promote root growth. Following the flowering results, the plant grows faster, and each time it is followed by fatting or watering, it should be cultivated. The land is cultivated before the seal to prevent the planting of plants. Weeds are fast growing and should be uprooted in a timely manner to prevent the emergence of grassland in july-august。
V. Fertilizer pipe care
Autumn sunflowers are drought- and wet-resistant and require high air and soil moisture during their growth, especially during flowering. Autumn growth and harvests are long, with a total fertility of about 100 days. Properly followed on the basis of the application of base fats, the first of which took place after the production of seedlings and applied 6 - 7 kg of urea per acre; the second of which applied urea fertilizers with 15 - 20 kg of compound fertilisation in a ditch following the planting of seedlings; and a double fertilisation with 25 - 30 kg of compound fertilization during the flowering period. After the questing period, many times less fertilization is applied to prevent inversion or premature decay, depending on the circumstances of the situation. During the summer, when the sunflower harvest is taking place, water is required in large quantities and the surface temperature is high, and water should be poured before 9 a. M. Or after the afternoon, to avoid watering the roots at high temperatures. During the rainy season, attention is paid to drainage to prevent the fallout。
Vi. Setup of leaf pickers #p# page title #e#
During the summer, the stairwells are set up and can support the plant with a 1-metre-long pole or branch. Pre-growing nutrients are prevented from leading the population and the timely removal of the leaves below the harvest can improve ventilation, reduce nutrient consumption and reduce the incidence of pests and diseases. The seeds should be left in a timely manner so that they can grow old enough to fill up with seed grains and improve their quality。
Vii. Combating the disease
Autumn has fewer diseases and more pests. Aphids, ostriches, viral diseases, etc., can be applied 10% of acre with a frethon particle agent of 1000-1500 mg at the time of fertilizing the gutter. In case of pests occurring later in life, 50 per cent of the spray can be used to prevent thiophos-methyl cream, avil, mites desolation, scavengers, etc., once every 5-7 days。
