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根据讯问调查,1963年滦县、定县、正定.邢台花生缺株率30—50%,早几年出苗更差些。花生种子发芽率低是缺苗的主要原因,1963年几个调查地点的花生种子发芽率在60—80%之间,差的50%以下,好的90%以上。但是,仍有20—50%具有发芽力的种子未能出土,所以播种后烂种也是缺苗的重要原因。根据试验,初步确定播种后烂种的病原菌有根霉(Rhiz-opus spp.),黑(麦曲)霉(Aspergillus niger)和镰刀菌(Fusarium spp.)。花生种子发芽率低,因而生活力也低,是播种后烂种的基础,早播和播种后遇阴天多雨均加重烂种。适时收获、充分干燥、合理贮藏,建立种子基本地,提高种子发芽率和生活力,是防治烂种的根本措施。用0.2%的赛力散拌种出苗率增加25.0%,(发芽率77%的种子),在早播和遇到不良气候条件时,效果可能更显著,是目前迅速提高出苗率简而易行的办法。
According to the interrogation survey, Luanxian County, Ding County, Zhengding County in 1963. Xingtai peanut absence rate of 30-50%, a few years earlier worse. The low germination rate of peanut seeds is the main reason for the lack of seedlings. In 1963, the germination rate of peanut seeds in several survey sites was between 60-80%, the difference was less than 50% and the good was more than 90%. However, there are still 20-50% of germinating seeds were unearthed, so seeding rotten species is also an important reason for lack of seedlings. According to the experiment, rhizobium (Rhizopus spp.), Aspergillus niger and Fusarium spp. Were preliminarily identified as pathogenic bacteria after seeding. Peanut germination rate is low, so vitality is also low, is the basis for seeding rotten, early seeding and seeding cloudy and rainy days are aggravating rotten species. Timely harvest, full drying, reasonable storage, the establishment of basic seeds, improve seed germination rate and vitality, is the fundamental measure against the rot. Saatchi with 0.2% Sailai seedling increased 25.0%, (77% of the germination rate of seeds), in the early sowing and encounter adverse weather conditions, the effect may be more significant, is the current rapid increase in germination rate simple and easy Approach.