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地黄为喜阳植物,要求整个生育期有充足的阳光。黄淮流域年光照2500小时,年均温度13～14℃,很适宜地黄生长。一、选地整地栽培地黄应选向阳,土层深厚、肥沃的砂质壤土,周围不种高秆作物的地块。春栽地黄前茬可选玉米、大豆、甘薯、棉花或蔬菜地块。夏栽地黄,可于麦收后立即整地栽种。不论春裁还是夏栽,均以高垄种
Rehmannia xiyang plants, requiring adequate sunshine throughout the growing season. Huanghuai basin annual light 2500 hours, the average annual temperature of 13 ~ 14 ℃, it is suitable for yellow growth. First, the election site preparation Cultivation Rehmannia should be selected sunny, deep soil, fertile sandy loam, surrounded by high-stalk crops plots. Spring planted yellow stubble optional corn, soybeans, sweet potatoes, cotton or vegetable plots. Summer planted yellow, wheat harvest can be planted immediately after planting. Regardless of the spring cut or summer planting, are high ridge type