How to diagnose Fusarium wilt and Verticillium wilt in cotton field?怎样根据当地病害发生程度,提出棉花枯萎病和黄萎病的综合治理策略?Fig . 1 . Symptoms of Fusarium wilt of wax gourd at a field.图一、冬瓜萎凋病在田间的病徵.Quarantining FOC 4 is the key method to avoid...
Active carbon deoxidizer has been developed on the principle of electrochemical oxidation.作者根据电化学氧化原理研制出活性炭脱氧剂.A dehumidifying deoxidizer containing oxygen - deficient cerium oxide and a dehumidifier is provided.本发明提供一种除...