论文部分内容阅读
一、病害防治白术病害严重,主要病害有:立枯病、伤水病。铁叶病、锈病、根腐病、白绢病等。1.立枯病(Rhizoctonia solani),又叫“烂茎瘟”,是白术苗期的主要病害。多发生在早春多雨季节和粘性较重的土壤中。症状:早春为害幼苗,发病多在土表下干湿土交界处的基部。幼苗被害后,使白术幼苗近土面基部出现黄褐色病斑,扩大后病部蓝黑褐色干缩凹陷,逐渐侵入茎内,腐烂,隔断输导组织,严重的最后倒伏枯死,根部亦随之腐
First, the disease prevention and treatment of Atractylodes serious disease, the main diseases are: Blight, wounds. Iron leaf disease, rust, root rot, Sclerotium. 1. Rhizoctonia solani, also known as “Rotten Stalk,” is a major disease at the seedling stage of Atractylodes. Occurred in the early spring rainy season and more viscous soil. Symptoms: Early spring damage seedlings, the incidence of mostly wet and dry soil at the junction of the base. Seedlings were killed, the Atractylodes macrocephala seedlings near the surface of the ground there brown spots, expand the Department of disease dark blue dry shrinkage depression, and gradually invade the stem, decay, cut off the conduction tissue, the last serious serious fall, the root also will follow Rot