Green onion planting time and environmental requirements
Planting conditions of green onions
1. Soil: Green onion is suitable for loam cultivation with pH 6.5-7.5. The nursery field requires fertilizer to be loose and loose, and the bottom sputum is sufficient. The topsoil should be prevented during the emergence period. The seedlings should be topdressed once when the seedlings start to grow rapidly. The soil moisture should be controlled 10-15 days before planting. To prevent the child from falling down.
2, fertilizer: green onion hi fertilizer, and requires balanced application of nitrogen, phosphorus, potassium. In the early stage of growth, there are more requirements for nitrogen fertilizer, and in the later stage, more phosphorus and potassium fertilizer are needed. Pay special attention to the application of phosphate fertilizer, because the lack of phosphate fertilizer will lead to poor plant growth and reduced yield. At the same time, it is necessary to pay attention to the content of sulfur in the onion, and the lack of sulfur in the soil will affect the yield increase effect.
3, temperature: green onion has resistance, both cold and heat. Although the temperature does not have much effect on the growth of green onions under normal conditions, suitable temperature conditions are conducive to high quality and high yield.
4, moisture: green onion root hair less, poor water absorption capacity. Most of the roots are distributed in the surface layer of the soil. It is recommended to have high soil moisture, but the root system is afraid of phlegm. High temperature and high humidity are likely to cause root death.
5, light: green onions require moderate light intensity. Because the tubular leaves of the green onions can still get good light conditions under the conditions of dense planting, there is no need for strong light. Strong light has an adverse effect on the growth of green onions, which will cause the leaves to age, the fiber to increase, the quality to decline, and even the loss of edible value.
Growing time of green onions
1. Autumn planting time: The first year of autumn is planted in early September, the seedlings will be wintered, the second year will be planted in mid-May in May, harvested before winter, and the winter will be harvested in the third year. . The seedlings at the time of planting can be listed as scallions from early May to late June; they can also be used as scallions or scallions in the stalks before or after the summer, or as the early spring after wintering. Shofar onion supplies.
2, spring planting time: early spring on the soil after thawing, as early as the summer comes as a supply of shallots, or harvested as a dry onion or scallions after the planting. Can also be winter as a squash or as a seed plant.
3, summer planting time: more in the late July to early August sowing, it is also known as the onion. When the winter was over, the plants were larger. It was easy to complete the vernalization process, and the spring germination was early and it was convulsive and flowering. Usually listed after the squash.
Method of planting green onions
1. Before the planting, the seedlings are separated, and the diseased seedlings, weak seedlings, over-small seedlings and obviously curved seedlings are removed. The plant spacing is 35-40 per meter, the row spacing is 1 meter, and the planting is about 23,000. Avoid colonization of onion when planting, the depth of planting should not be buried in the heart, it is not suitable to seedling too deep, too shallow to affect the length of the scallion. When planting, the leaf surface should be arranged in a vertical direction with the planting ditch, which is conducive to close planting and management.
2. The planting tool can use a garden iron or garden wood rod with a diameter of about 1.5 cm. When planting, first make a shallow hole, perpendicular to the ground, then insert the seedling, and then lift it up slightly, so that the roots should be lowered and kept. straight. If it is bent, the stem will bend when it is harvested later, which becomes a defective product.
3, planting should be planted on the same side of the onion ditch, which is conducive to drainage after the rain.
4. After the planting, the loose soil on both sides of the onion plant is compacted and then watered.
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