There are late-maturing varieties and early-maturing varieties of edamame. Early-maturing varieties of edamame are usually sown in early spring each year, but many friends don’t know the key points of early-maturing edamame. Let’s learn a few briefly.

High-yield planting and management techniques of early maturing soybeans

1. Site preparation

Edamame is suitable for growing on high-quality soil with sufficient fertility, strong permeability, and good drainage. Before planting, we must first do the land preparation work, deep plough it about 25 cm, fine rakes, and improve the quality of the soil. Try to deep plow before winter, and then deep plow again in spring, and apply sufficient base fertilizer.

2. Base fertilizer

The amount of base fertilizer should be more, because the nutritional requirements of early-maturing soybeans are relatively large, especially for phosphorus and potassium fertilizer. The base fertilizer is generally farmyard manure, with a proper amount of superphosphate. The specific nutrient ratio of the base fertilizer should be determined according to the fertility of the soil. After the base fertilizer is applied, it should be shallowly plowed again to prepare for planting.

High-yield planting and management techniques of early maturing soybeans

3. Sowing in time

The planting method of early-maturing edamame is generally based on drill seeding, because early-maturing edamame has strong growth ability. Appropriate dense planting can effectively increase the yield. Control the row spacing to 40 cm and the plant spacing to about 15 cm. Control the amount of sowing according to the soil area. The sowing should not be too deep, just keep it at about 4 cm. Then dig the sowing holes, and put about 4 seeds in each sowing hole. If it is found that there is a lack of trees, replant them in time to ensure that the seedlings are all available. Cover a layer of plastic film after sowing, and do a good job of breaking the film when the seedlings emerge.

4. Temperature management

Temperature is also very important for the growth of early-maturing soybeans. After sowing, in order to promote seed germination, the temperature should be controlled at about 25 degrees. Increase the emergence rate to ensure that the seedlings are uniform, and then appropriately lower the temperature to about 22 degrees when the soybeans are growing. Early maturing soybeans have different temperature requirements in each growth period. For example, 20 degrees is the best when the flower buds differentiate, and the flowering period should be controlled at about 26-27 degrees. If the temperature is not suitable, the effect on its flowering rate will be relatively large. . Therefore, we must also pay attention to ventilation, control the temperature difference between day and night, and promote the growth of edamame.

High-yield planting and management techniques of early maturing soybeans

5. Thinning and replenishing seedlings

Thinning and replenishing seedlings is a key measure to ensure the yield of early-maturing soybeans. When the seedling grows about 7 cm in height and a true leaf grows, the plant spacing should be controlled for seedling setting. Attention should be paid to pulling out the weak growing seedlings that grow too densely, and keeping the strong seedlings. The seedlings of early-maturing edamame can be kept densely, and the growth of the seedlings should be observed during thinning. If there are missing seedling holes, it is necessary to fill up seedlings of the same growth in time to prevent gaps with the estimated planting number and yield, and ensure the rate of full seedlings.

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