摘要
衰弱病是杨梅产业上的严重病害,为开发杨梅衰弱病的关键防控技术,选择3种生物有机肥和挪威复合肥进行试验,不施肥病树为对照,研究施生物有机肥和复合肥对病树营养改良和树势的影响。结果表明,3种生物有机肥10~20 kg/株施用量防病以及营养改良效果较好,总体上优于复合肥,病害防效66.12%~82.64%,复合肥无防效,使病树土壤pH和有机质含量升高,土壤内的速效氮、有效钙、镁、有效硫、锌、铜、铁等7种元素以及叶片内的钙、硫、铁、锰、硼等5种元素含量显著增加,改善了病树营养生长和果实品质,单果重和可溶性固形物分别增加51.8%~77.0%和1.50~3.36个百分点,可滴定酸含量降低0.16~0.31个百分点。综上所述,生物有机肥对杨梅衰弱病有一定防效,可改善病树土壤和叶片营养元素含量,促进营养生长,提升果实品质。
The weak disease of bayberry is serious in the industry. To develop the key prevention and control technology to the disease, three kinds of bio-organic fertilizers and Norwegian compound fertilizer were selected for the experiment, and the diseased trees without fertilization were used as the control. The three kinds of bio-organic fertilizers with application amount of 10-20 kg per plant had 66.12%-82.64% disease control effect, better than that of compound fertilizer which had no obvious effect, and the bio-organic fertilizers increased the soil pH and organic matter content of the treated diseased trees. The contents of seven elements in soil such as available nitrogen, available calcium, magnesium, available sulfur, zinc, copper and iron, and five elements in leaves, such as calcium, sulfur, iron, manganese and boron, were significantly increased. The vegetative growth and fruit quality were improved, the single fruit weight and soluble solids were increased by 51.8%-77.0% and 1.50-3.36 percentage points, respectively, and the titratable acid content was decreased by 0.16-0.31 percentage points. In summary, the bio-organic fertilizer has a certain control effect on weak disease of bayberry tree, and could improve the content of nutrient elements in soil and leaves of diseased trees, promote vegetative growth and fruit quality.
作者
任海英
王剑
郑锡良
张淑文
邹秀琴
俞浙萍
戚行江
Ren Haiying;Wang Jian;Zheng Xiliang;Zhang Shuwen;Zou Xiuqin;Yu Zheping;Qi Xingjiang(Institute of Horticulture,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021;Shaoxing Economic Crop Technology Promotion Center,Zhejiang Province,Shaoxing Zhejiang 312000;Qingtian Crop Station,Qingtian Zhejiang 323900)
出处
《中国农学通报》
2021年第16期127-137,共11页
Chinese Agricultural Science Bulletin
基金
浙江省科技厅重点研发计划项目“特色经济作物爆发性病虫害防控关键技术-杨梅衰弱病病因与绿色防控技术研究”(2019C02038)
浙江省重点研发计划项目“基于作物健康的农产品提质增效关键技术研发与集成应用”(2020C02001)。
关键词
生物有机肥
杨梅衰弱病
土壤理化性质
叶片营养
营养生长
树势
果实品质
bio-organic fertilizer
bayberry weak disease
soil physical and chemical properties
leaf nutrition
vegetative growth
tree vigor
fruit quality
作者简介
第一作者:任海英,1974年出生,山东沂水人,副研究员,博士,研究方向为杨梅病害防控及栽培育种。通信地址:310021浙江省杭州市上城区石桥路139号浙江省农业科学院园艺研究所,Tel:0571-86410266,E-mail:renhy@zaas.ac.cn。
