Detailed Explanation of Sorghum-Sudangrass Hybrid Planting Techniques and Management Methods

Sorghum-Sudangrass Hybrid is a cross between sorghum and Sudan grass, with relatively high yield and relatively high digestibility. It also has relatively strong resistance. Let's take a look at Sorghum-Sudangrass Hybrid planting techniques below.

I. Sorghum-Sudangrass Hybrid Planting Techniques

Sorghum-Sudangrass Hybrid has no strict requirements for sowing time and utilization period. Sowing can begin when the soil temperature at 10cm reaches 12-16°C. To ensure a supply of green fodder throughout the summer, it can be sown every 20-25 days. Before sowing, deeply plow the land and apply sufficient organic fertilizer. It can also be mixed-sown with legume forage. After sowing, the first cutting can be done 6-8 weeks later. The stubble height should be above 15cm; too low will affect regrowth.

II. Sorghum-Sudangrass Hybrid Planting Methods

Sowing time: Sorghum-Sudangrass Hybrid prefers a soil temperature of 15°C and is suitable for spring sowing, preferably from Qingming to Guyu.

Sowing method: Sorghum-Sudangrass Hybrid can be drilled or hill-dropped. The seeding rate per 667 sq m is 1.5-2.0 kg, sowing depth is 3 cm, and row spacing for drilling is 15-30 cm.

III. Sorghum-Sudangrass Hybrid Management

Before sowing Sorghum-Sudangrass Hybrid, the land should be finely prepared and sufficient base fertilizer applied. After emergence, thin and finalize the seedlings according to density requirements; 30,000-50,000 plants can be retained per 667 sq m. The first cutting should be done 35-45 days after emergence; too early results in lower yield, and too late causes stem aging which affects regrowth. After that, cutting can be done again about every 20 days. It can be cut 4-7 times a year. To ensure high fresh grass yield throughout the year, the stubble should not be left too low at each cutting; generally a stubble height of 10-15 cm is appropriate, ensuring 1-2 nodes remain above the ground. After each cutting, topdressing should be carried out; generally about 8-10 kg of urea per 667 sq m each time. After emergence, clean cultivation should be done 1-2 times. Weeds tend to grow after each cutting, so timely intertillage is needed. The main pest of Sorghum-Sudangrass Hybrid is aphids. If not controlled in time, it will affect regrowth after cutting. Field control mainly uses pirimicarb or omethoate.

IV. Precautions for Sorghum-Sudangrass Hybrid Planting

Before Sorghum-Sudangrass Hybrid reaches 50 cm in height, do not graze or feed it fresh. When feeding livestock for the first time, do not let them eat on an empty stomach. Have sufficient water available; supplementing salt and sulfur-containing minerals can reduce the harmful effects of hydrocyanic acid. In cases of particularly dry soil, insufficient fertility, or relatively low temperatures, special attention should be paid to hydrocyanic acid poisoning. During the production of silage and hay, most of the hydrocyanic acid volatilizes, so it will not cause livestock poisoning.

Sorghum-Sudangrass Hybrid contains crude protein and has relatively high carbon content. It is very suitable for silage and can be used to raise cattle, sheep, rabbits, chickens and other livestock and poultry.