Perennial hybrid Pennisetum

1. Botany characteristics of hybrid Pennisetum

perennial. Fibrous root system, deep and dense roots, strong drought and flood resistance. A single plant can form many branches, the more soil is cultivated and the more cut, the more branches, up to 200 branches. Seedlings emerge 5-7 days after sowing, with high temperature, sufficient fertilizer and water, rapid plant growth, strong regeneration ability, and continuous cutting and utilization. The critical temperature for the growth of hybrid Pennisetum is 10-15°C. Therefore, in tropical and subtropical regions, it grows throughout the year and produces grass throughout the year. The grassland can be used continuously for many years.

The suitable seed germination is 28-30°C. In early spring, it is necessary to sow when the ground temperature is stable above 15°C, not too early. The most suitable growing season is summer, with an average daily temperature of 25-30°C and the fastest growth.

Hybrid Pennisetum is very sensitive to quick-acting fertilizers, especially nitrogen fertilizer. The recommended dosage is 40kg/mu. Organic fertilizer has no obvious effect on increasing production.

Hybrid Pennisetum is perennial and can be cut continuously for 8 years, cut 5-8 times a year, and produce 12-15 tons of fresh grass per mu per year. In the high-temperature areas of the south, it can grow to 1.2 meters in 30 days after sowing, and it can be cut for the first time. After each mowing, it is recommended to fertilize 10kg/mu of urea after rain to promote the growth of sprouts.

Hybrid Pennisetum is tender and juicy. It is fond of food such as cattle, sheep, horses, fish, and fish. It has high nutritional value, high yield, drought-tolerant and flood-resistant extensive management. It can be used continuously for 8 years after a perennial planting. Popularization has gradually become the first choice for high-yield, high-quality forage species in the southern aquaculture industry.

Second, the excellent characteristics of hybrid wolf tail vehicles

1. Plant once, use for many years

Hybrid Pennisetum is a perennial gramineous forage, which has the characteristics of one-time planting and multi-year utilization. When used as forage grass, it can usually be used for at least 5 years, and some can last as long as 10-15 years, or even longer. In order to obtain sustained high and stable yields, in actual production, it is often necessary to raking the pasture field once after the rain after the first 4 to 5 years to obtain high yields.

2. Good product quality

Hybrid Pennisetum fully combines the characteristics of high yield of elephant grass and good palatability of Pennisetum americanum, and its heterosis is very obvious.

First, the output is high. When used to raise herbivorous large animals such as cattle and sheep, the output of hybrid Pennisetum in the first year after planting can reach 10,000~15,000 kg, and some can even reach 20,000 kg. The output is higher than the first year's output, with an average annual increase of 30%-50%.

Second, the quality is good. Compared with elephant grass, hybrid Pennisetum is more nutritious, and its crude protein content can reach 13.18%.

Third, it has good palatability and safe feeding. The stems and leaves of hybrid Pennisetum are tender, the outer sheath of the leaf is smooth and hairless, the grass is thick and soft and delicious, all kinds of livestock, poultry, fish, etc. Hairy, thin and hard grass, poor palatability and low utilization rate.

Fourth, the amount of leaves is abundant, and the ratio of stem to leaf is small. Hybrid Pennisetum has thin stems, many leaves, and abundant leaf quantity. The leaf division level of a single plant can usually reach 20. After multiple X! J cuttings, the number of division leaves can be doubled; when light, fertilizer, and water conditions are sufficient, There are more than 200 branches per plant. According to the measurement, the stem-leaf ratio of hybrid Pennisetum fresh grass was 0.84, while that of elephant grass was 1.01.

3. Strong regeneration ability and resistance to cutting

Hybrid Pennisetum has strong regenerative ability and is very resistant to mowing. Generally, it can be mowed once a month, and can be mowed 6 to 8 times a year. It can be cut when 60~80cm, the cutting time is shortened, and the number of cuttings is more.

4. Strong adaptability, wide sowing area

Hybrid Pennisetum is very adaptable, and the sowing area is also very wide. Generally, it can be cultivated in mountains, hills, terraces, plains and coastal areas below 800m and the lowest temperature above 0~5°C. At the same time, hybrid Pennisetum is suitable for cultivation. The requirements for soil are not strict, and it can grow on all kinds of soil. But it is warm and humid; the smelly climate and fertile sandy soil are the most suitable for its growth, which is conducive to obtaining high yields.

5. Strong stress resistance

1.) Resistance to drought and lodging. Hybrid Pennisetum has deep and dense roots and developed fibrous roots. The root system is mainly concentrated in the 0-30cm soil layer. It is very resistant to drought and has strong lodging resistance.

2.) Cold and heat resistant. The hybrid wolftail grassland is produced in tropical and subtropical regions, so the warm and humid climate is extremely conducive to its growth. It starts to grow when the average daily temperature reaches 15°C and above, and grows fastest at 25-35°C, and it can withstand temperatures above 40°C. High temperature and low temperature below 10°C and light frost for a short time. Generally, when the temperature is lower than 10°C, the growth is obviously inhibited, but when other summer and autumn forages stop growing at 7~8°C, it can still grow slowly. In our province, hybrid Pennisetum can overwinter naturally, but in some areas, if the temperature of 0°C lasts for too long, it is necessary to use film to protect the sprouts overwintering in these areas.

3.) Strong resistance to pests and diseases, easy to manage. Hybrid Pennisetum has a very strong ability to resist diseases and insect pests. According to relevant reports, after hybrid Pennisetum was introduced into my country for large-scale planting, no obvious pest damage has been found for many years.

4.) Strong salt and alkali resistance. According to experiments, hybrid Pennisetum grows well on soils with a chloride salt content of 0.3%, and its seedlings will not die on soils with a chloride salt content of 0.5%. This feature is extremely conducive to its planting on saline-alkali soils.

6. Fast coverage, strong ability to intercept sediment

Hybrid Pennisetum is not only an excellent pasture, but also an excellent ecological and water-conserving grass species. Hybrid Pennisetum grows fast, has deep and dense roots, and has well-developed fibrous roots, which can quickly cover the ground and effectively intercept sediment.

7.Long utilization period, wide application range, and obvious breeding benefits. Guangdong hybrid pennisetum can be sown in March, and generally can be used in May. It can be used continuously until December, and the utilization period is as long as seven to eight. moon. The grassland established with hybrid Pennisetum can be used directly for grazing or mowing fresh grass. The cut fresh grass can be directly used for green forage or silage. Hybrid Pennisetum can raise all kinds of livestock, poultry, fish, etc., and has a wide range of applications. At the same time, it also shows outstanding advantages of high efficiency and high innovation efficiency, and the breeding benefits are obvious. According to calculations by Zheng Chenzhong and others from the Agricultural Bureau of Raoping County, feeding cows with hybrid Pennisetum, compared with feeding weeds, a cow can increase milk production by about 3 50 kg during a lactation period and reduce costs by 400 yuan; Hybrid Pennisetum fish grows fast, and the feeding is safe and labor-saving; compared with cabbage feeding, hybrid pennisetum raises geese, the weight gain of the geese is obvious, it can be released in advance, and the profit is high, at the same time It can also replace part of the feed grain to save food. In recent years, the application of hybrid pennisetum in pig raising has attracted the attention of pig farmers and the application range is getting wider and wider. Using hybrid pennisetum to raise pigs can not only reduce the environmental pollution of pig farms, but also It can also improve the efficiency of pig raising. For example, Xiamen Guorong Institute of Bioeconomy, under the guidance of experts and professors from Fujian Agriculture and Forestry University and Chinese Academy of Agricultural Sciences, has achieved successful research on "high-quality ecological pig production technology" through years of experiments and discussions. The "pig, marsh, and grass" engineering model is the center, using hybrid pennisetum as the main green fodder to raise pigs, using pig excrement to produce biogas, and the biogas slurry is used to fertilize the soil and promote the growth of hybrid pennisetum. A virtuous recycling system was created. The ecological pork produced by this technology is on the market. Although the price is 20% to 30% higher than that of ordinary pork, and the offal and ribs are 50% higher than that of ordinary pork, ecological pork is still famous for its hygiene, health, nutrition and delicious taste. Such characteristics have won the favor of consumers, and the social response has been great.