How to Grow Sorghum for High Yield? Latest Cultivation Technique Tutorial

Sorghum is one of China's ancient crops, and it has a wide range of uses. According to different uses, it can be divided into grain sorghum, sugar sorghum and forage sorghum, with high economic value and cultivation value. But how to achieve high and quality yield when growing it is a question, directly related to farmers' income. Below, Qinnong Web brings you the high-yield cultivation technique for sorghum.

1. Reasonable crop rotation

Crop rotation is one of the important measures for achieving high yield in sorghum. Sorghum should not be continuously cropped; continuous cropping will not only greatly reduce its yield, but also easily lead to pests and diseases, and disease outbreaks are also more serious. Sorghum plants are relatively tall, with well-developed root systems and a strong ability to absorb water and nutrients, so reasonable crop rotation is best, and the previous crop is best a legume crop.

2. Land preparation and fertilization

Before planting, deeply plow the soil. This serves, first, to use the sun to bleach and sterilize the soil, and second, to loosen the soil and keep it in a loose state. When preparing the land, pay attention to uniformity, without missing any area or plowing twice. After plowing and before planting, apply sufficient base fertilizer to the soil so that the seedlings can grow quickly. When fertilizing, mix the fertilizer and soil evenly.

3. Seed treatment

To achieve the goal of high yield, when selecting seeds, combine them with the local growing environment and choose varieties with strong drought resistance, lodging resistance and disease resistance. To ensure the seed germination rate, select plump, large seeds, remove the shriveled and small ones, then place them in the sun to expose them for 2-3 days. This can kill bacteria on the seed surface, increase the seed germination rate and make germination uniform. Then treat the seeds by soaking them in warm water to promote germination. After soaking the seeds in warm water for 12 hours, wrap them in a wet gauze and place them in a greenhouse to promote germination, taking them out once a day to rinse with clean water. Once the seeds show sprouting tips, they can be sown.

4. Timely sowing

Sorghum has different temperature requirements at each growth stage. For example, the minimum germination temperature is 6-7 degrees, while the emergence temperature is 20-25 degrees, so the sowing time must be controlled well. Generally, missing the best sowing time leads to poor plant growth and thus affects yield. The best sowing time is generally in early May, and drilling or dibbling can be used. Sowing should be uniform, and after sowing, cover with soil and press it down. When sowing, pay attention to reasonable close planting and control the plant and row spacing.

5. Field management

Field management is divided into early, middle and late stages. The early stage is mainly seedling management, promoting the growth and development of the seedling root system to achieve the goal of strong seedlings. When sorghum seedlings have grown 2-3 true leaves after emergence, pull out the weak, diseased and small seedlings, leaving the robust sorghum seedlings. The middle stage mainly promotes plant growth, strengthens fertilizer and water management, and carries out intertillage and weeding, etc., to promote the growth of stems and leaves, ensure normal panicle differentiation, and achieve the goal of high yield. Carry out intertillage and weeding in time to avoid weeds competing for nutrients. The late stage is mainly maintenance, preventing premature aging of the plants, promoting early maturity and increasing grain weight.

The above is the high-yield cultivation technique for sorghum brought by Qinnong Web. To achieve high and quality yield in sorghum, pest and disease control is also an important point. Pest and disease protection work should focus on prevention, combined with agricultural control and chemical control.