期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
简化棉铃虫查卵方法的研究与应用 被引量:1
1
作者 刘定忠 余昌喜 王荣龙 《植保技术与推广》 2002年第2期5-7,共3页
摘要:棉田棉铃虫的卵株率与卵密度间相关极显著,因而利用有卵株率取代卵密度来进行棉铃虫发生期的分析和确定防治指标,易于被接受和掌握。同时,简化棉铃虫的查卵方法,对于棉铃虫的测报调查和指导大面积的防治具有重要意义。
关键词 棉铃虫 查卵方法 简化 株率 密度 预测预报
原文传递
棉铃虫卵在棉株上的分布与查卵方法的改进
2
作者 韩明 王学平 宋汝国 《植保技术与推广》 1999年第4期9-10,共2页
江苏沿江棉区棉铃虫在棉田发生以三、四代为主,其中四代是主害代。查准田间卵量对决策防治及准确反映当年棉铃虫发生量等具有重要意义。国家标准《棉铃虫测报调查规范》规定三代查棉株群尖和嫩叶上的卵量(实际调查中发现漏查率较高)... 江苏沿江棉区棉铃虫在棉田发生以三、四代为主,其中四代是主害代。查准田间卵量对决策防治及准确反映当年棉铃虫发生量等具有重要意义。国家标准《棉铃虫测报调查规范》规定三代查棉株群尖和嫩叶上的卵量(实际调查中发现漏查率较高),而对四代查卵未有明确规定。为此,... 展开更多
关键词 棉花害虫 棉铃虫 棉株 分布格局 查卵方法 田间
原文传递
Large solitary ovarian metastasis from colorectal cancer diagnosed by endoscopic ultrasound 被引量:2
3
作者 Bhavani Moparty Guillermo Gomez Manoop S Bhutani 《World Journal of Gastroenterology》 SCIE CAS CSCD 2008年第32期5096-5097,共2页
A case is presented of rectal carcinoma in which during staging by endoscopic ultrasound (EUS) a second large extra recta l mass was seen not otherwise visualized on computer tomograghy (CT) that was a solitary ov... A case is presented of rectal carcinoma in which during staging by endoscopic ultrasound (EUS) a second large extra recta l mass was seen not otherwise visualized on computer tomograghy (CT) that was a solitary ovarian metastasis. The surgeon was alerted to the EUS finding prior to the planned laparoscopic colectomy. On retrospective review of the CT pelvis after surgery, the radiologist could still not diagnose the ovarian lesion separated from the primary rectal tumor due to their close proximity. However, on EUS we were able to clearly see on real-time imaging that there was a distinct peri-rectal mass apart from the primary rectal tumor. 展开更多
关键词 Colorectal Cancer Endoscopic ultrasound OVARY Ovarian metastasis Endoscopic ultrasound ENDOSONOGRAPHY
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部