Three key points in the management of parsley in open field

At present, it is the sowing time of autumn coriander, but because it is the rainy season, some vegetable farmers do not know how to manage the seedling stage of autumn coriander. This paper introduces the three main points of the management of autumn coriander seedling stage as follows: first, the germination period of autumn coriander is longer, and it takes about 9 to 10 days from sowing to emergence. In the sprouting period of coriander, if the weather suddenly clears up after rain, it is easy to form a layer of "pot cake" in the seedling bed, which seriously affects the emergence rate of coriander. Vegetable farmers can ensure the air permeability of the soil by watering a small amount of water to facilitate seedling emergence. Second, when parsley grows to a height of 4 to 5 centimeters, seedlings should be carried out. Vegetable farmers can carry out seedlings according to the plant spacing of 3 cm to 4 cm to ensure that there is enough room for the growth of parsley and keep the seedlings of the same size for easy management. At the same time, the seedlings should be combined to remove weeds in the field. Third, the disease of coriander is less. Because it is planted in the open field, and now is the period of high incidence of insect pests, vegetable farmers should give priority to the prevention of insect pests, which can be prevented with 0.5% methylvitamin salt 4000 times solution or 2.5% vegetable Xi suspension 1000 times solution, which can be prevented every 5 to 7 days.