Where is suitable for planting in the hilly area of Xintai area, Tai 'an City, Shandong Province

The hilly area of Xintai area in Tai 'an City, Shandong Province is suitable for planting apples. Tai 'an belongs to temperate monsoon climate, with four distinct seasons, suitable cold and hot, synchronous light and temperature, and the same season of rain and heat.

Apple is a deciduous tree with strong polarity. It usually grows vigorously and has a tall crown, which is usually about 3 ~ 5 meters high under cultivation conditions. The trunk is grayish brown, the old bark has irregular longitudinal cracks or flaking, and the branchlets are smooth. Fruit is a kind of kernel, and its color and size vary with varieties. Like light, like slightly acidic to neutral soil.

Apple tree is a temperate fruit tree that likes low temperature and dryness. It requires no cold in winter and no heat in summer. The suitable temperature range is the annual average temperature of 9 ~ 14℃, the extreme low temperature in winter is not lower than-12℃, the highest monthly average temperature in summer is not higher than 20℃, the annual accumulated temperature is ≥ 10℃, and the average temperature in the growing season (April ~ 10) is about 5000℃.

Apple is a light-loving tree, and it can grow normally only when there is enough light. According to the measurement of Shandong Agricultural University, the light compensation point of Jinguan and emerging areas in Tai 'an is 600 ~ 800 m candle, and the saturation point is 3500 ~ 4500 m candle. In this range, the light intensity increases and photosynthesis is also strengthened. Insufficient sunshine will cause a series of reactions, such as excessive growth and weakness of branches and leaves, poor resistance to pests and diseases, less flower bud differentiation, less nutrient storage, low flowering and fruit setting rate, and the growth of roots will also be affected. Soil has a great influence on the growth, yield and quality of apples. The main factors are soil layer, soil ventilation and soil quality. In short, apples need deep soil, good drainage, rich organic matter, slightly acidic to slightly alkaline.

Apply more phosphorus and potassium fertilizer instead of nitrogen fertilizer, cultivate strong seedlings and improve the disease resistance of plants themselves. Appropriate irrigation, rainy days or afternoon should not be watered to prevent freezing injury.