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沾益县低干丰产桑园树形养成技术

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摘要 沾益县气候适宜,属北亚热带与中亚热带半湿润山地气候,日光充足,太阳辐射强,年平均日照时数为2 108-2 308 h,年平均温度13.7-14.5℃,年平均总积温5 305℃,冬无严寒、夏无酷暑,无霜日数240-254 d,年降雨量900-1 100 mm,以5-10月最多,占全年降水量的87%,空气新鲜,气候干燥,土壤肥沃,利于蚕、桑树生长,产优质茧,素有养蚕“天堂”之称。
作者 龚云来
出处 《云南农业科技》 2015年第6期24-26,共3页 Yunnan Agricultural Science and Technology
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