The latest course of planting Management techniques and methods of Sweet Corn at Seedling stage

Corn is an important food crop in China, which can not only be used as a staple food but also can be eaten in cooking. In recent years, more and more people grow sweet corn. In the seedling stage of sweet corn, its stems and leaves grow slowly and its root system develops rapidly. in order to cultivate strong seedlings, we should pay special attention to the process of seedling management, so how to manage the sweet corn seedling stage? Let's get to know it with the editor.

1. Check seedlings to fill the gap

Maize seedlings should be checked and filled in time at seedling stage, because the planting quality and soil differences of maize are different, and the information of lack of seedlings and broken strips appears after sowing, thus affecting the yield and quality of corn. Therefore, it is very important to check and fill the deficiency of seedlings, in the case of more lack of seedlings, it is best to use seeds soaked to promote germination; but if there are few seedlings, they can be transferred and replanted, and transplanting should be carried out in rainy days or sunny afternoons now, and less in time after transplanting to ensure the survival of seedlings. Transplanting seedlings as far as possible partial to water and fertilizer, shorten the slow seedling time, in order to achieve the purpose of strong and uniform seedlings.

2. The seedlings are fixed

The seedlings should be fixed in time at the 3-leaf stage of maize, at the same time, the seedlings of diseases and insect pests should be removed and the strong seedlings should be retained. The time of interseedlings should be early and should be carried out before the seedlings take root. If the seedlings are too late, it will cause the seedlings to compete for water and fertilizer, resulting in poor root growth, which will affect the growth of the aboveground parts. The seedling setting time should also be early rather than late. In places with serious underground insect pests, the seedling setting time should be appropriately increased and delayed, but it should not exceed 6 leaves at the latest.

3. Ploughing and weeding

Timely ploughing weeding and breaking soil consolidation can loosen the soil, eliminate weeds, promote the root system of maize to tie down smoothly, play an important role in promoting lodging, and lay a good foundation for lodging prevention in the later stage. In general, the secondary roots of maize with 2 feet ploughing at the seedling stage are 5-6 more than those without ploughing, and the yield is increased by about 10%. Attention should also be paid to the shallow ploughing of the seedlings when weeding, so as not to hurt the seedlings.

4. Cultivate strong seedlings

For those without base fertilizer, seedling fertilizer can be applied at the 5-leaf stage, with 40 kg of ternary compound fertilizer per mu. Foliar fertilizer of zinc sulfate can be sprayed at the seedling stage, or zinc sulfate can be applied to the roots. For large and small seedlings of serious land, to apply eccentric fertilizer, for the density is too high, the growth of the plot, we should pay attention to prevent lodging.

The above is the introduction of sweet corn seedling planting management technology, hope to help you, want to know more related knowledge, please follow us.