摘要
通过在河北馆陶、宁晋两地设置播种日期、播量及施肥试验,明确以上3种农业栽培措施对小麦纹枯病的防控效果。结果表明,适宜的农业措施可有效控制小麦纹枯病的发生发展。其中,适期晚播可使小麦纹枯病的病株率及病情指数显著降低,对于河北中南部病害较重的地块,选择10月中旬播种,可在不影响产量的基础上有效降低纹枯病危害;穗数45万/667 m2,折合播种量7~8 kg/667 m2可显著降低病情指数、提高产量;在高氮肥(施用15 kg/667 m2)情况下,适量增施钾肥也可显著降低小麦纹枯病病情指数,并有增产效果。
Through setting up sowing date,sowing amount and fertilization experiments in Guantao and Ningjin of Hebei Province,the control effects of the above three agricultural cultivation measures on wheat sharp eyespot were clarified.The results showed that appropriate agricultural measures could effectively control the occurrence and development of wheat sharp eyespot.Of which.The diseased plant rate and disease index of wheat sharp eyespot can be significantly reduced by late sowing at the appropriate time.For the plots with serious disease in the central and southern part of Hebei,sowing in the middle of October can effectively reduce the damage of wheat sharp eyespot without affecting the yield;The number of ears per mu was 450000,which was equivalent to 7~8 kg of sowing amount per mu,which can significantly reduce the disease index and improve the yield;Under the condition of high nitrogen fertilizer(15 kg per mu),the incidence of wheat sharp eyespot can also be significantly reduced and the yield can be increased by adding appropriate amount of potassium fertilizer.
作者
马继芳
陈立涛
王永芳
李志勇
董志平
Ma Ji-fang(Institute of Millet Crops,Hebei Academy of Agriculture and Forestry Sciences/Key Laboratory of Genetic Improvement and Utilization for Featured Coarse Cereals(Co-construction by Ministry and Province),Ministry of Agriculture and Rural Affairs/Key Laboratory of Minor Cereal Crops of Hebei Province,Shijiazhuang,Hebei 050035)
出处
《农业灾害研究》
2023年第6期4-6,21,共4页
Journal of Agricultural Catastrophology
基金
河北省农林科学院基本科研业务费包干制项目资助(HBNKY-BGZ-02)。
关键词
小麦纹枯病
农业栽培措施
病害防控
Wheat sharp eyespot
Agricultural cultivation measures
Disease prevention and control
