Quick frozen sweet corn is a storage method of corn. Quick frozen sweet corn kernels have high sugar content. It is mainly used to produce canned food and has high planting value. In order to ensure the successful sowing and stable high yield of sweet corn, the management of sweet corn sowing date is the basis. Key management techniques for sowing date of quick-frozen sweet corn:

1. Isolated planting in order to ensure the edible quality of quick-frozen sweet corn, it should be different from other varieties when planted in selected areas. Space isolation and time isolation are used, but the effect of space isolation is good. Spatial isolation requires that no other maize varieties are planted within 300-400M beyond the planting area. If there are forests, hills and other obstacles, the isolation distance can be appropriately shortened.

2. Time isolation. If spatial isolation is not possible, temporal isolation should be used to interleave sowing dates to avoid flowering dates of other varieties. The sowing interval between two different varieties is usually 20-25 days. If sweet corn is planted in a large area, the isolation standard can be appropriately reduced.

3. Fine soil preparation. The seeds of quick-frozen sweet corn manufacturers (especially super sweet corn) are usually dry and small. The germination, arching and emergence of seeds are more difficult than ordinary corn seeds, so the ground should be carefully prepared. During planting, plots with loose and fertile soil and convenient drainage and irrigation shall be selected. After harvesting the previous crops, plough and plough 20-30cm in time, combine farming and apply sufficient base fertilizer, usually 1000-1500kg organic fertilizer, 30-40kg calcium superphosphate, 20kg potassium sulfate and 1-1.5kg zinc sulfate per acre. If conditions permit, it can be planted by transplanting seedlings.

4. Sowing and planting sweet corn by stages is mainly to sell fresh ears in the market or provide processing plants to produce canned food, which is completely different from planting ordinary corn. At the same time, sweet corn should not be released for a long time after harvest. Therefore, sweet corn should be planted in stages and batches according to market demand and factory processing capacity. Early, medium and late varieties should be used together to improve economic benefits. When sowing, 3-4 seeds shall be sown in time for each hole. The sowing depth is shallower than ordinary corn, and the covering layer is usually about 4 cm. 4. The reasonable dense planting density depends on the characteristics of varieties, soil fertility, sowing date and planting method.

At the same time, pay attention to the commercial performance of the ear. In general fertile soil, 3500-4000 plants per mu are suitable. Early maturing varieties can be densely planted. Based on 4000-5000 plants per mu, late maturing varieties are sparse, and 3000-3500 plants per mu is appropriate. The management of sowing date of sweet corn is related to the normal growth, stability and high yield of quick-frozen sweet corn, which should attract the attention of growers. The above quick-frozen sweet corn production enterprises introduced the key points of management technology of quick-frozen sweet corn during sowing, hoping to help you!