【摘 要】
:
种植肉芥菜会出现叶片变短,植株萎缩,新根不发,新叶不长,越种越小,最后形成老化苗,并逐渐枯萎死亡的现象,这是由于感染了病毒病所致,在冬季发生比较严重。肉芥菜病毒病借蚜
【机 构】
:
广西玉林市园艺技术服务中心 537000
论文部分内容阅读
种植肉芥菜会出现叶片变短,植株萎缩,新根不发,新叶不长,越种越小,最后形成老化苗,并逐渐枯萎死亡的现象,这是由于感染了病毒病所致,在冬季发生比较严重。肉芥菜病毒病借蚜虫、害螨传播,当蚜虫、害螨为害严重时,感染病毒病而产生畸形的肉芥菜也多。 具体防治技术措施:在肉芥菜生长期间,要注意防治蚜虫、害螨为害叶片,特别是为害生长点,要经常检查叶
Growing meat mustard will appear short leaves, plant atrophy, no new root, new leaf is not long, the more the smaller, the final formation of aging seedlings, and gradually wilt death phenomenon, which is due to infection caused by the virus in the Winter is more serious. Meat mustard virus disease by aphids, spread of harmful mites, when aphids, pests damage serious, infected with virus disease and produce more deformed mustard. Specific control measures: during the growth of meat mustard, we should pay attention to the prevention and treatment of aphids, pests mite damage leaves, especially for the growth of harmful spots, we should always check the leaves
其他文献
芦笋是最高效的经济作物之一,一次种植可采收10年以上。每亩年采笋量一般达2300公斤,年亩产增值达万元以上。鲜笋不仅是食用名菜,含有丰富的蛋白质、纤维素及人体必须的多种
农家利用冬闲田接种猴头菇,333平方米(0.5亩)可种5000袋。60~70天即可收干品350~400公斤,比室内瓶栽或纸袋栽培产量提高15%~20%,产品合格率达90%以上,纯利7000~8000元。 一、栽培季
关于铅对脂质过氧化的影响已有报道,但在接触铅的工人中动态观察血铅,GSH和脂质过氧化的关系未见国内外报道。本文通过人体接触空气中铅180d的动态观察,以血铅为基准研究铅
菌株选择及菌种制备 1.供试菌株三峡7号、草丰1号(本协会选育)。两个菌株在稻草中均具有发菌迅速,抗杂能力强,出菇适温广(4~32℃),产量高,菇形好等特点。 2.原种培养基配方棉
In the last 10-15 years,after an implementation of the ICH-E9 guideline entitled "Statistical Principles for Clinical Trials",there has been an increasing a
Tadalafil is a phosphodiesterase-5 inhibitor.It has the disadvantage of poor aqueous solubility.Therefore,it is important to develop an effective method to
本文探讨李飞跃名中医治疗冻结肩经验.李飞跃认为冻结肩病机为本虚标实,标为风、寒、湿、热、气滞血瘀,本为气血、肝肾亏虚.临证以内服、外敷、手法结合治之.中药内服以祛风
Regulatory T cells (Tregs) have recently taken the limelight as a therapeutic target,because they regulate virtually most adaptive immune responses.In autoi
红色高棉的兴起细究柬埔寨的历史,实在是悲惨而又令人尴尬。越南战争期间,美国要求柬埔寨助战,遭到西哈努克的拒绝。美国对西哈努克政府的偏左政策深为不满,从1969年3月起,派
Dès mon enfance,mes parents,mes matres et tous les autreséducateurs m’ont inculquéque la langue,tel un outil,avait pour but de faciliter la communication.