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(续第7期第17页)1.选择优良品种杨梅优良品种很多,全国主栽品种30多个,大面积栽培时必须注意早、中、迟熟品种合理搭配,尽量延长采收期。早熟品种有早荠蜜梅,中熟品种有荸荠种、木洞光叶杨梅等,迟熟品种有东魁、晚荠蜜梅和晚稻杨梅,生产中可根据各地实际情况择优选用。2.园地杨梅喜温暖湿润多云雾气候,不耐强光,不耐寒,杨梅树冠大,根系分布广。栽植地要求年平均温度15~20℃,最低绝对温度大于-9℃,大于10℃的年有效积温4500~5000℃,年降雨量1000毫米以上。土壤要求质地疏松,活土层60厘米以上、地下水位1米以下,有机质含量1%以上,pH值在4~6之间。
(Continued on the 7th page 17) 1. Selection of excellent varieties Many varieties of bayberry, more than 30 varieties of cultivars nationwide, large-scale cultivation must pay attention to early, middle and late varieties of a reasonable match, try to extend the harvest period. Premature varieties are honey and honey chestnuts, medium-maturing varieties have water chestnut species, Mukoudongguang bayberry, late varieties are Dongkui, honey and late nights chestnut Yangmei, production can be based on the actual situation around the preferred choice. 2. Park warm and humid bayberry hi cloudy fog climate, intolerance glare, not cold, bayberry crown, root widely distributed. Planting land requires annual average temperature of 15 ~ 20 ℃, the minimum absolute temperature is greater than -9 ℃, more than 10 ℃ annual effective accumulated temperature of 4500 ~ 5000 ℃, the annual rainfall of 1000 mm or more. Soil requirements loose texture, living soil above 60 cm, groundwater level below 1 m, organic matter content of 1% or more, pH value between 4 and 6.