Is Puyang suitable for planting Zhangqiu scallion?

Puyang area is suitable for planting Zhangqiu scallion. Puyang city is located in the mid-latitude zone, which is controlled and influenced by the southeast monsoon circulation all the year round, and belongs to the warm temperate semi-humid continental monsoon climate. It is characterized by four distinct seasons, dry and windy in spring, hot and rainy in summer, sunny in autumn and less rain and snow in winter.

1 Zhangqiu Welsh Onions are afraid of waterlogging and drought, so we should choose plots with good drainage to plant Welsh Onions. The site selection can be based on whether the rainwater can seep and drain within four hours. Avoid continuous cropping, continuous cropping for three years has seriously reduced production, and almost completely reduced production.

During this period after planting, the weather is hot and rainy, and the growth of onion seedlings is slow, so there is no need to water and fertilize, and there is no need to water and fertilize in case of drought. One application of herbicide killed the grass. After beginning of autumn, green onions entered a vigorous growth period. From the late August of 10 to the early October of 10, scallion needs water and fertilizer most, lasting about 10 days, and the land is wet but not dry. This is the key technology for high yield over 10,000 kg. During the period from mid-August to late September, topdressing should be done twice, each time not less than 100 kg (special compound fertilizer is the best). Combined with topdressing and two times of soil cultivation, the height is subject to not burying the heart leaves.

3. A large number of male moths were lured and killed by sex pheromones, which destroyed the normal ratio of pest population. At the same time, because the male moth is stimulated by high concentration of sex pheromone for a long time, it can not complete normal mating activities, thus reducing the mating probability, egg production and effective egg production of the female moth, and achieving the purpose of controlling pest population. Sex attractants do not kill natural enemies of pests, and have the advantages of high sensitivity, biological activity and selectivity, no pollution to the environment, and no drug resistance of pests.

4 After harvesting, dry in the sun for several hours, remove the soil from the roots, remove the diseased and injured plants, bundle them into bundles of about 10 kg, and put them in a well-ventilated place for about 6 days; Let the water on the surface of green onions dry completely in the shade. Choose a leeward ventilated place with a ditch spacing of 50 ~ 70cm. If the humidity at the bottom of the ditch is low, you can water it once. After all the water seeps down, put the onions in the storage ditch one by one, and then bury them with soil. Before the cold comes, cover it with straw curtains or corn stalks. This can be kept until March of the following year.