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作 者:孙永泉[1] 侯立群[2] 赵登超[2] 刘忆谊[3]
机构地区:[1]山东师范大学生命科学学院,山东济南250014 [2]山东省林业科学研究院,山东济南250014 [3]泰安市林业局科教站,山东泰安271000
出 处:《绿色科技》2010年第10期44-47,共4页Journal of Green Science and Technology
摘 要:通过对核桃伤流发生规律的研究,掌握伤流发生的规律,分析影响核桃伤流的因素,包括品种、树龄、温度、土壤中水分含量等。通过对核桃休眠期伤流规律的研究为合理安排核桃修剪时期、嫁接时间,合理施肥提供了可靠的理论基础。Through the research on walnut injury flow , the regulation has been grasped as follows: walnut injury flow has diurnal variation and annual variation. The injury flow in the daytime is generally bigger than that at night, and the maximum appears at noon. During the annual variation, the walnut bleeding appears twice in the peak period of dormancy ( i.e. leaf falling period and leaf expand period). There are many influencing factors, such as species, age, temperature, soil moisture content, and so on. The xylem sap also contains large amounts of soluble sugar and 14 kinds of mineral elements. The research on walnut injury flow regulation during its dormancy provides reliable theoretical basis for reasonable arrangement of walnut pruning period grafting time, and rational application of fertilizer.
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