Pinus spp. is a perennial herb of the Asteraceae family that is a scented forage. Native to North America, it is known as the "King of Green Feed" abroad, and can be used for up to 15 years at a time. Introduced to China from North Korea in 1997, it is also called pine herb and bunched leaf grass. Fresh grass is rich in various nutrients, especially the high content of crude protein, good palatability of livestock and poultry, high digestibility, can be fed to cattle, sheep, rabbits, hay powder can be used to make compound feed.
The stem and leaf ratio of the stem and leaf of the pine herb is small, the fresh dry ratio is large, the stem is connected to the base of the raw leaves in a cup shape, the stem runs out from the middle of the two leaves, and the fresh grass has a special pine fragrance, so it is called the string leaf pine herb. It has wide adaptability, cold resistance, heat resistance, strong resistance to diseases and insect pests, strong regenerative properties, and high grass yield. It is not only suitable for large and medium-sized intensive production, but also can be planted sporadically on the vacant land in front of the house and behind the house, and is a high-yield high-quality forage variety with high value.
First, the biological characteristics of the string leaf pine herb:
The root system of the bunch of leaves of pine herb is developed and thick, the stem is oval or spherical, the stem is not pumped in the year of sowing, and the plant is lotus-shaped. Generally, the plant is 2-3 meters tall, and the leaves are wide and oblong-oval, 35 to 40 cm long and 28 to 32 cm wide. The cephalic inflorescence resembles an jerusalem artichoke inflorescence with a disc diameter of 2 to 3 cm. Prefer warm and humid climate, the average daily temperature grows rapidly at 20 to 28 degrees, and under suitable temperature conditions, as long as the supply of water and fertilizer is sufficient, it has a strong regenerative ability. Good hardiness, winter and spring cold season aboveground part withered, in the bad weather of -38 degrees celsius underground part will not freeze to death. Whether sown in spring or autumn, the string of leaves and pines only forms clusters of lotus branches and leaves in that year, and only after the second year of winter does it grow. There are no very strict requirements for the soil to grow, and it is better to grow it with fertile loam soil cultivation. It is highly reproducible, resistant to cutting and staining, and has no obvious pests and diseases during the entire growth period.
Second, the fine sowing of string leaf pine vanilla:
Pineflower can be sown all year round when the temperature is above 5, of which spring sowing and autumn sowing are the most suitable. It can be sown or sown on demand, and can also be transplanted, the sowing amount per mu (667 square meters) is about 200g, the amount of seedling transplanting seeds is 100g, the sowing depth is about 2 cm, the field sowing row spacing is 50 ~60 cm, and the plant spacing is 40~50 cm. Before sowing, the seeds should be carefully selected, and sunned for 2 to 3 hours, and then soaked in 25-30 degrees of warm water and drained to promote seed germination.
Bunch of leaves of pine herb seeds
Bunch of leafy pine herb seeds:
Bunch of leaf pine herb seeds ¥50 purchase
Third, the field management of skewered pine herb:
The leaves of the stringed pine herb are hypertrophied, it is difficult to unearth, and the surface of the field should be kept moist before sowing, and the furrow surface should be flat, and the seedlings can be emerged 7 to 10 days after sowing. After the seedlings are ready, it is necessary to irrigate and water in time and apply fast-available nitrogen fertilizer, and 10 kg of urea can be applied per mu to promote the rapid growth of seedlings. However, it is also necessary to pay attention to field drainage to prevent rotten roots and dead seedlings caused by continuous accumulation of water in the field. Before returning to green in early spring or after each cutting, it is necessary to carry out medium ploughing and loosen the soil in time, and water and fertilize. Before sowing the arable land, it can be sprayed with extinct herbicides such as sodium pentachlorate licorice phosphorus. After 7 to 10 days, the cultivated land is sown, which can effectively control the weed damage at the seedling stage of the skewered pine. Once the bunched leaves of pine herbs have grown taller, they can inhibit weed growth.
Fourth, the harvest and utilization of bunched leaf pine herbs:
Bunch of leaf pine herbs can generally be harvested in 40 to 50 days of planting, the number of harvests can reach 5 to 6 times a year, the first harvest stubble height should be more than 10 cm, and then every 20 to 30 days of cutting once, northern Gansu, Inner Mongolia and other places can also be harvested 4 to 5 times a year, after each harvest after the application of nitrogen fertilizer, timely irrigation during drought, will play a role in increasing yield. Not only is fresh grass yielding and of excellent grass quality, but it is also rich in various nutrients, especially the crude protein content. In that year, about 45 tons of fresh grass can be produced per hectare, and 150 to 350 tons of fresh grass per hectare the following year.
It has been reported that the crude protein content of pineflower fresh grass cut at the stemming stage accounts for 20.6% of the dry matter, and the digestible protein per kilogram of fresh grass contains 33.2 grams, especially the high content of lysine. The string of leaves pine herb contains a special pine flavor, and when feeding begins, the livestock are stopped for half a day, and some salt water is sprayed on the grass, and the livestock and poultry can adapt after a short period of domestication. According to the characteristics of different livestock, the length of the grass cutting section can be fed at about 5 to 8 cm, and the timely harvesting and drying is made into hay or dried by itself into hay or grass powder.
The leaves and flowers of the bunched leaf pine herb contain alkaline substances, the toxicity is weak, and it will not cause any harm if fed in an appropriate amount, and the daily feeding amount of fresh grass is 20kg for cattle, 6kg for sheep, 3kg for pigs, and 0.3kg for rabbits.
When spring comes, the skewered pine herb can begin to germinate at temperatures above 5 ° C, and the annual yield is amazing, if you are engaged in farming, you may wish to plant a piece of open space such as wasteland and house front and back!
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