Chinese name: Silphium perfoliatum

Latin name: Silphium perfoliatum L.

Alternative name: Silphium perfoliatum

Subclass : Subclass of Synaptophyll

Order: Platycodon

Family: Compositae

1. Morphology of Coniferous Herbs

Pine vulgaris is a perennial herb, originally produced in the highlands of North America, with very fat and sturdy rhizomes. Horizontally multi-segmented. Stems developed from buds formed on rhizomes in the first year, erect, quadrangular, square or diamond-shaped. Plant height 200-300cm, upper branches. The leaves are oblong, shriveled, slightly rough, and the leaf margins are notched and serrated. Capitulum, disc diameter 2-2.5cm, seeds are achenes, heart-shaped, flat, brown, with winged edges. Each inflorescence has 8-19 seeds, and the thousand seeds weigh about 20g.

2. The value of pine cone vanilla

The pine cone leaf herb has high yield and crude protein content, and has strong adaptability. The highest yield per mu in the third year can reach 10,000 to 15,000 kg. According to the analysis and determination, the water content is 85.85%, the nutrients (% of dry matter): crude protein 26.78%, crude fat 3.51%, crude fiber: 26.27%, crude ash 12.87%, nitrogen-free extract 30.57%. The digestible energy of each kilogram of fresh grass is 418 kcal and the digestible protein is 33.2 grams. Grass can be fed to cattle, sheep and rabbits, and can be used to raise pigs and poultry through silage; hay powder can be used to make compound feed.

3. Planting of Coniferous pine vanilla

Coniferous pine vanilla can be sown directly or transplanted. Propagation is generally based on seeds. But it is better to transplant seedlings. The row spacing is 1.3 meters wide, the ditch is 0.3 meters wide, the row spacing is 0.5 meters, and there are 600 to 1000 plants per mu. The general plant spacing of green feed is 0.3 meters, and the others are the same as above, with 2000 to 2500 plants per mu. Before the spring buds germinate or the leaves are slightly yellow in late autumn, transplant when there are 5 to 6 true leaves. After planting, water and fertilizer should be used to keep it moist; fertilization: Pine pine and vanilla have strong fertilizer tolerance. Before transplanting, apply 2500 kg of bar fertilizer, 50 kg of phosphate fertilizer, and 15 kg of standard nitrogen fertilizer as base fertilizer. Every green mowing time, topdressing standard nitrogen fertilizer 10 kg/mu. After one year, it is necessary to continue to apply pen fertilizer, phosphorus fertilizer and nitrogen fertilizer to continuously supplement and maintain the fertility in the soil.

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