European red squirrel
European red squirrel size: about 30cm in length
Tail length is about 20cm
Origin: central Europe to West Asia
Eating habits: plant-based omnivorous
Big squirrel. The whole body is bright reddish brown and the abdomen is white. The ears have long hair. Large size, lively movements, feeding needs to have a fairly large cage.
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Artificial promotion of seed setting of Pinus koraiensis
As a tree species with long rotation period, it is very important to excavate seed economic potential, shorten capital return period and solve recent economic income besides considering timber income. There are 800 hectares of Pinus koraiensis plantation in Fengcheng area, of which 3600 hectares have entered the fruiting period. In the bumper year, the average seed yield per hectare is 350 kg, and the total output value can reach 13 million yuan. Further increasing the seed yield of these stands can effectively boost the development of forestry economy in mountainous areas. We February 1998 sap flow before existing into knots
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Seed treatment techniques of Pinus koraiensis
Pinus koraiensis (PonusRoraiensisSiebetZucc.), also known as Pinus koraiensis, Pinaceae. It is growing well in Kuandian area of Liaoning Province, and its wood material is soft and durable, edible and squeezable oil. it is a natural green food. In recent years, with the increase of the export volume of Korean pine seed kernel products, the commodity value of Korean pine is getting higher and higher, and the demand for Korean pine afforestation seedlings is also greatly increased, thus arousing the enthusiasm of the majority of seedling workers to raise Korean pine seedlings. Seed treatment is crucial in the process of seedling cultivation of Pinus koraiensis.
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