Planting management of autumn cabbage

In the seedling stage, the root system is underdeveloped and its absorption capacity is weak. It is often hot and dry in autumn. Therefore, it is necessary to supply enough water in time, insist on small water and frequent watering to promote root growth. When the heart is broken, topdressing is carried out once, each time the seedlings are thinned, combined with field tillage, and thin application of topdressing to raise seedlings.

The lotus stage is a period of rapid growth of Chinese cabbage. During this period, water and fertilizer management must be strengthened to promote vigorous plants. After setting the seedlings or after the plants have slow seedlings, open holes or small furrows between rows or plants to fertilize. Apply 20 kg of compound fertilizer or 20 kg of ammonium sulphate per acre. After topdressing, water once and then water according to the dry and wet soil. .

The heading period is the period when the Chinese cabbage products are formed, and a lot of fertilizer and water are needed. The water and fertilizer management during the heading period focuses on the beginning and the middle of the heading period, that is, "pumping tube fertilizer" and "filling heart fertilizer". Use fast-acting fertilizer and apply it in advance. Topdressing should be done immediately when the core is started. 15-20 kg of ammonium sulfate should be topdressed per acre. The topdressing should be done again after the plant is pumped. The topdressing should be combined with irrigation. The irrigation method should be slow. Slow irrigation method is better. Stop irrigation 10 days before harvest to prevent the leaf bulbs from being stored due to excessive water content.

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