How many tons of high yield of sweet sorghum

The high yield of sweet sorghum stalk was 168 tons per hectare. The record of grain yield was 6 tons per hectare. In addition, the fiber content of sweet sorghum stalk is about 14-18%, and the fiber yield is 9-15 tons per hectare.

Planting techniques for High yield of Sweet Sorghum

1. Rational rotation

Continuous cropping of sorghum is avoided and rotation is appropriate. Continuous cropping will not only greatly reduce its yield, but also prone to diseases and insect pests. Because its plant is tall, its root system is developed, and its ability to absorb water and nutrients is strong, so reasonable rotation is the best.

2. Soil preparation and fertilization

Turn the soil deeply before planting to make the soil loose and pay attention to uniformity when preparing the soil. After soil preparation, sufficient base fertilizer is needed to make the seedlings grow rapidly.

3. Seed treatment

In order to achieve the purpose of high yield, the varieties with strong resistance to drought, lodging and disease should be selected according to the local planting environment. In seed selection, to select full particles, you first need to be exposed to the sun for 2-3 days, which can kill the bacteria on the seed epidermis and improve the germination rate of the seeds. Then soak the seeds in warm water to accelerate germination, soak the seeds in warm water for 12 hours, then wrap them in a wet gauze and place them in the greenhouse to accelerate germination. Rinse the seeds with clean water once a day, and sow when the seeds are exposed to the tip of the bud.

4. Sowing seeds at the right time

Sorghum should have different requirements for temperature at each growth stage, such as the lowest temperature for germination is 6-7 degrees, and the temperature for emergence is 20-25 degrees, so the sowing time should be controlled well. If the best sowing time is missed, it will lead to poor plant growth and reduce yield. Generally, the best sowing time is in the first ten days of May, and strip sowing or on-demand sowing can be used. when sowing, we should pay attention to reasonable close planting, control plant row spacing, and cover soil filling after sowing.

5. Field management

Field management is divided into early, middle and late management, and the early stage is mainly seedling management to promote the root growth and development of seedlings and achieve the purpose of strong seedlings. When 2-3 true leaves grow after the emergence of sorghum, weak seedlings, diseased seedlings and seedlings need to be pulled out. In the middle stage, it is mainly to promote plant growth, strengthen fertilizer and water management, mid-tillage and weeding, etc., to ensure the normal differentiation of panicles, in order to achieve the purpose of high yield. In the later stage, it is mainly maintenance to prevent plant premature senescence, promote precocious maturity and increase grain weight.

One of the important factors affecting the high yield of sweet sorghum is diseases and insect pests, and the protection of diseases and insect pests is mainly combined with some agricultural pesticides.