High-yielding planting techniques of Sorghum

Sorghum is one of the ancient crops in China, it has a wide range of uses, according to different uses, it can be divided into edible sorghum, sugar sorghum and forage sorghum, which has high economic value and planting value. However, how to achieve its high yield and high yield when planting is a problem, which is directly related to the income of farmers.

1. Rational rotation

Rotation is one of the important measures to achieve high yield of sorghum. Continuous cropping of sorghum will not only greatly reduce its yield, but also prone to diseases and insect pests. The plant of sorghum is taller, its root system is developed, and its ability to absorb water and nutrients is strong, so reasonable rotation is the best, and the best crop is legume.

2. Soil preparation and fertilization

Turn the soil deeply before planting, which is to use the sun to whiten and sterilize the soil for a while, the second is to loosen the soil to keep the soil loose, pay attention to uniform and uniform soil preparation, do not miss ploughing, re-ploughing. Before planting after cultivated land, apply sufficient base fertilizer to the soil, so that the seedlings can grow rapidly, and fertilize the fertilizer and soil evenly.

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 order to ensure the seed germination rate, select the seeds with full grains and large size, remove the dried and small seeds, and then put them in the sun for 2-3 days, which can kill the bacteria on the seed epidermis, make the seed germination rate high, and sprout neatly. 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 the seeds when the tip of the bud is exposed.

4. Sowing seeds at the right time

Sorghum has 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, and generally miss the best sowing time, resulting in poor plant growth, thus affecting yield. Generally, the best sowing time is in the first ten days of May, strip sowing or on-demand sowing can be used, sowing should be uniform, cover soil should be filled after sowing, reasonable close planting should be paid attention to, and plant spacing should be controlled.

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 strengthening seedlings. When 2-3 true leaves grow after sorghum emergence, the weak seedlings, diseased seedlings and small seedlings are pulled out, leaving strong sorghum seedlings. In the middle stage, it mainly promotes plant growth, strengthens fertilizer and water management, weeding and weeding, promotes the growth of stems and leaves, ensures the normal differentiation of panicles, in order to achieve the purpose of high yield, timely ploughing and weeding, and avoids weeds to seize nutrients. In the later stage, it is mainly maintenance to prevent plant premature senescence, promote precocious maturity and increase grain weight.

The above are the high-yield planting techniques of sorghum brought by the pro-agricultural network. In order to achieve high yield and high yield of sorghum, pest control is also an important point. Pest and disease protection work is based on prevention, combined with agricultural control and chemical control.