施肥对核桃黑斑病田间防控作用研究  

Effect of Fertilization on the Prevention and Control of Black Spot Disease of Walnut in Field

作　　者：陈邦清 王黎明 易尚源 彭刚志 李纯琼 Chen Bangqing;Wang Liming;Yi Shangyuan;Peng Gangzhi;Li Chunqiong(Forest Seedling Promotion Center of Yichang City,Yichang 443005;Forestry Bureau of Zigui County,Yichang 443600;Management Office of Three Gorges Botanical Garden,Yichang 443111;Management Bureau of Dalaoling Nature Reserve in the Three Gorges,Yichang 443000)

机构地区：[1]宜昌市林木种苗推广中心,宜昌443005 [2]秭归县林业局,宜昌443600 [3]三峡植物园管理处,宜昌443111 [4]宜昌三峡大老岭自然保护区管理局,宜昌443600

出　　处：《湖北林业科技》2021年第1期39-41,70,共4页Hubei Forestry Science and Technology

摘　　要：通过田间施肥措施,观察核桃叶片指标(长度、宽度、厚度、重量)的变化情况与黑斑病病害侵染情况,分析其关联程度。结果显示,施肥后叶片长度增量和病害侵染率变量呈显著性正相关,叶片宽度增量和病害侵染率变量呈极显著性正相关,叶片厚度和重量变化与病害侵染均不相关。在田间防控核桃黑斑病过程中,施肥可以引起叶片变大,可抵抗病害侵染,延缓侵染程度。By taking fertilizing measure in the field,the change of walnut leaf index(such as length,width,thickness and weight)was observed,as well as the infection of black spot disease,and the correlation degree between them was analyzed.The results showed that there was a significant positive correlation between leaf length increment and disease infection rate,and a extremely significant positive correlation between leaf width increment and disease infection rate after fertilization.The changes of leaf thickness and weight were both not related to the disease infection.In the prevention and control of walnut black spot disease in the field,fertilization can cause the leaves to grow larger,resist the disease infection,delay the infection degree.

关 键 词：核桃 黑斑病 施肥 病害侵染 防控 

分 类 号：S664.1[农业科学—果树学]