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Deli-high dancao
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Deli-high dancao

Deli Gaodangrass is a hybrid of sorghum and Sudangrass based on the principle of heterosis. It is a new variety newly approved by the Third National Forage Variety Approval Committee. Deli Gaodangrass combines the advantages of sorghum stem thickness, leaf width and Sudangrass tilling power and strong regenerative power. It has low hydrocyanic acid content and is safe to eat, and its heterosis is very obvious. One planting and multiple cuttings, the total production capacity per mu is 8,000-10,000 kg, and the fertilizer and water conditions are sufficient, and the total output can reach 14,000 to 20,000 kg. The crude protein and crude fat in hay are higher than the parents, and the sugar content is higher, so it is suitable for silage. It can be used to raise cattle, sheep, animals, geese, fish and other livestock and poultry.
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1. Variety advantages

Deli Gaodangrass is a hybrid of sorghum and Sudangrass based on the principle of heterosis. It is a new variety newly approved by the Third National Forage Variety Approval Committee. Deli Gaodangrass combines the advantages of sorghum stem thickness, leaf width and Sudangrass tilling power and strong regenerative power. It has low hydrocyanic acid content and is safe to eat, and its heterosis is very obvious. One planting and multiple cuttings, the total production capacity per mu is 8,000-10,000 kg, and the fertilizer and water conditions are sufficient, and the total output can reach 14,000 to 20,000 kg. The crude protein and crude fat in hay are higher than the parents, and the sugar content is higher, so it is suitable for silage. It can be used to raise cattle, sheep, animals, geese, fish and other livestock and poultry.

Deli Gaodangrass is the latest hybrid combination of Sudangrass. It has a very high yield of fresh grass and fully demonstrates its heterosis. It is widely used in Hunan, Hubei, Jiangxi, Jiangsu and other places. It is a high-quality aquatic and fishery grass.

2. Introduction to Features

1. High yield: The yield of fresh grass per mu is about 10,000 kg, and the high yield can reach more than 20,000 kg.

2. Good quality: After analysis, the percentages of crude protein and crude fat anti-fresh weight of high salvia are 2.49° and 0.6% respectively, while the percentages of dry weight reached 14.07% and 3.39%. Feeding fish with fresh grass generally produces 0.5 kg of live fish with 12-15 kg.

3. Good palatability: After trial feeding in various places, it is reflected that the fish especially like to eat high dan grass. The high dan grass with a plant height of 1-1.2 meters can be eaten up by the fish, while the Sudan grass has left residual stems.

4. Strong resistance to adversity: due to hybridization, the newspaper system is developed. Absorptive capacity is strong.

3. Growth characteristics

Deli Gaodangrass has a well-developed root system, the stem height can reach 2-3m, the tillering ability is strong, and the leaf quantity is abundant. Deli Gaodangrass is a temperature-loving plant with longer vegetative growth time, higher digestibility and higher yield. It is also resistant to drought, heat and cold. It can be used in areas with moderate rainfall or irrigation conditions. To obtain high yield, the forage period is generally from May to October. The minimum seed germination temperature is 8-10°C, and the optimum germination temperature is 20-30°C. Gaodancao is a photoperiod sensitive plant, showing good maturity characteristics, and the long-term nutrition is longer than that of ordinary varieties. The soil requirements are not strict, and it can be planted in sandy soil, slightly acid soil and mild saline-alkali soil. The nutrient price is high, the palatability is good, the regeneration ability is strong, and the tillering ability is strong. Under irrigation conditions, the north can be cut 3-4 times, the south can be cut 6-8 times, and the maximum yield of fresh grass is 13 tons per mu. It is suitable for green forage and silage, and it can also be used for direct grazing and modulation of hay.

Four, planting points

1. Sowing period: the suitable soil temperature is 15°C, suitable for spring sowing, suitable for Qingming to Guyu;

2. Sowing method: can be drilled or drilled. The seeding amount per mu is 1.0-1.5 kg, the seeding depth is 2 -3cm, and the row spacing is 15-30 cm;

3. Fine management to prevent pests: Planting high dan grass, but also strengthening field management, timely and adequate supply of water and fertilizer is the guarantee of high yield. After the emergence of the seedlings, it should be cultivated for 2-3 times to prevent and control weeds in time; diseases rarely occur, and the main pests are aphids.

4. Cut at the right time to facilitate regeneration: The regeneration of high alpine grass depends on the buds on the tillers of the stubble on the ground. Therefore, the stubble should not be kept too low for each cutting. It is necessary to ensure that there are 1-2 knots on the ground. Generally, the height of the stubble is 10-15cm.

5. Change planting every year to ensure high yield: As high dangrass is a hybrid of sorghum and Sudangrass, its high yield is based on the advantages of the first generation of hybrids, so it cannot be reserved by itself.

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