Planting technique of Gaodan grass

Gaodan grass is a hybrid of sorghum and Sudan grass, which has higher yield and higher digestibility. And the resistance is relatively strong, let's take a look at the planting techniques of Gaodan grass.

I. planting techniques of Gaodan grass

Gaodan grass has no strict requirements on sowing time and utilization period, but it can start sowing when the soil temperature reaches 12 ℃ 16 ℃ for soil 10cm. In order to ensure the supply of green fodder in the whole summer, it can be sowed every 20 / 25 days, turn the land deeply and apply enough organic fertilizer before sowing, and it can also be mixed with legume forage. 6 Mel can be cut for the first time 8 weeks after sowing, and the stubble height should be higher than that of 15cm. Too low will affect regeneration.

II. Planting methods of Gaodan grass

Sowing time: Gaodan grass suitable soil temperature 15 degrees, suitable for spring sowing, Qingming Festival to Grain Rain is suitable.

Sowing method: Gaodan grass can be sowed by strip or hole. The sowing capacity of 667 square meters is 1.5-2.0 kg, the sowing depth is 3 cm, and the row spacing is 15-30 cm.

III. Management of Gaodancao

Gaodan grass should prepare the soil carefully and apply sufficient basal fertilizer before sowing. After emergence, interseedling and fixed seedling were carried out according to the requirement of density, and 30-50,000 seedlings could be retained in 667 square meters. The first cutting should be carried out 35-45 days after emergence, and the early yield was low, and the late stem aging affected the recurrence, and then it could be cut again every 20 days or so. It can be cut 4-7 times a year. In order to ensure the high yield of fresh grass all the year round, the stubble height should not be too low for each cutting. Generally, the stubble height should be 10-15 cm, and 1-2 nodes should be left on the ground. Topdressing should be carried out after each cutting, usually about 8 kilograms of urea per 667 square meters. After emergence, the seedlings should be ploughed for 1 or 2 times, and the weeds should be ploughed in time after each cutting. The pests of Gaodan grass are mainly aphids. If the recurrence after cutting is not controlled in time, aldicarb or omethoate is mainly used in the field.

IV. Matters needing attention in the cultivation of Gaodan grass

Before the height of Gaodan grass is 50 cm, do not graze or green feed, do not let livestock feed on an empty stomach for the first time, have sufficient water, salt and minerals with sulfur can reduce the harmful effects of hydrocyanic acid, when the soil is particularly dry or lack of fertility, and the temperature is relatively low, special attention should be paid to hydrocyanic acid poisoning. In the process of producing silage forage and hay, hydrocyanic acid is mostly volatilized, so it will not cause livestock poisoning.

Gaodan grass contains crude protein and high carbon content, so it is very suitable for green storage and can be used to raise cattle, sheep, rabbits, chickens and other livestock and poultry.