Protecting the roots and promoting the roots. After transplanting and planting, the green onion is used to protect the root and promote the root in the high temperature stage, mainly to prevent drought and waterlogging, and the green onion that has just been transplanted should be watered with drip irrigation in order to promote the growth of the root system; Green onions that have entered the peak stage of leaf growth can be combined with watering, and functional fertilizers can be applied with less chemical fertilizers. You can apply some well-decomposed organic fertilizer. At this stage, green onions are most afraid of flooding, and attention should be paid to waterlogging and drainage during the rainy period to prevent the occurrence of "ditches".
Soil cultivation at the right time. Soil is generally not cultivated before the beginning of autumn to avoid the appearance of dead seedlings. After the weather becomes cooler after the beginning of autumn, choose to lightly break the ridge and shallow soil in the afternoon when the leaves are soft, the general thickness is 3-5 cm, and the leaf sheath is not buried, so as to avoid the thick soil layer around the root traces under the sheath of the green onion leaves and the high temperature burns the plant and rots.
Control pests and diseases. Green onions are prone to soft rot in high temperature weather, and 1000 times of liquid such as thiometone and chunleimycin can be sprayed alternately. If fungal diseases such as downy mildew and blight occur in the mix, 600 times of Jinlei or Kelu can be added at the same time.
Thrips and spotted loon flies can be sprayed with 21% thiamethoxam suspension 10-18 ml/mu or 10% cyantraniliprole suspension 40-50 ml/mu sprayed. In the early stage of maggots, 200-300 ml/mu of 5% fluoropyridine urea emulsifiable concentrate can be used to stir evenly with 30 kg of fine sandy soil, evenly sprinkled on the soil surface along the green onion ridge, and then watered along the ridge, and watered with sufficient water to ensure that the agent penetrates into the green onion bulb.
The management measures of summer green onions in the open field are introduced here, I hope it will be helpful to everyone. If you want to buy high-quality and high-yield green onion seeds, you can download the seed bank App, and the country's excellent green onion varieties are available for everyone to choose.
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