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柑桔生长期需要常温16℃。黄岩年平均温度有18℃,最高温度在7、8月,达42℃,最低温度在1月,为-9℃;年雨量2,200毫米。6月中旬是梅雨期,9月上旬则有干旱现象。全年温度雨量正适宜于柑桔的生长。柑桔产区的澄江沿岸,土质为冲积土(粉砂质壤土),呈微硷性,PH值7—7.8,排水佳良;其余都是幼年水稻田土,为粘质与粉砂质的壤土,反应微酸性到中性,表土深厚,地下水位较高,化学分中等。各种自然环境都提供了栽培柑桔的优越条件。
Citrus growing period needs room temperature 16 ℃. The average annual temperature of Huangyan 18 ℃, the maximum temperature in July and August, up to 42 ℃, the minimum temperature in January, -9 ℃; annual rainfall of 2,200 mm. Mid-June is a period of rainy season, while drought occurs in early September. Annual rainfall is suitable for the growth of citrus. Citrus producing areas along the coast of Chengjiang, alluvial soil for the soil (silty loam), was slightly alkaline, PH value of 7-7.8, good drainage; the rest are young paddy soil, clay and silty loam , The reaction slightly acidic to neutral, deep topsoil, high water table, chemical points and so on. A variety of natural environments provide the best conditions for growing citrus.