Introduction of Sweet Potato 25 varieties
Yanshu 25 is a new edible variety with high quality, high yield and good disease resistance, which was selected by Yantai Academy of Agricultural Sciences through hybridization technology. This variety has the characteristics of high yield, stable yield, drought tolerance, fertilizer and water tolerance, wide adaptability, strong disease resistance and good taste. It is suitable for fresh food cultivation and is very suitable for commercial production. The general yield is 3500-4000kg/ mu.
Key planting points of Yanshu No. 25:
1. Plant in the hilly land with good drainage, do not plant in the flat land as far as possible, otherwise it is easy to cause ribs and split skin, try to raise a high ridge, the ridge height is about 30 cm.
two。 It can be watered appropriately in the early stage of growth to promote the survival of seedlings, and not watered as far as possible in the middle and later period of growth (after July), otherwise it will easily lead to sudden tendon and split skin.
3. Cut off the root 1-2 cm, to be cut after the wound healing (usually the second day) planting density per mu 4000-4500 plants, generally required ridge distance of 75 cm, plant spacing of 19-21 cm.
4. The growth period is maintained at 145-155 days, and excessive growth can easily lead to excessive potato shape, over-round, cracked skin and violent tendons, which can be appropriately extended for low-yield plots.
5. Scientific fertilization, generally per mu of fermented finished chicken manure 60 kg, potassium sulfate 15 kg, mixed, along with ridging machinery scattered into the ridge, or artificial ditch application into the bottom of the ridge, try not to apply soil and miscellaneous fertilizer (too many miscellaneous bacteria), if you must fully ferment and mature, it is appropriate to apply 400-500 kg per mu and concentrate on the bottom of the ridge.
Yanshu 25 is a delicious baked sweet potato, which is currently planted in Shandong, Hebei, Henan, Anhui, Jiangsu, Liao, Shanxi, Shaanxi, Inner Mongolia, Xinjiang, Jilin, Beijing and Tianjin and other regions in China.
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