1) farmland weed dynamics
农田杂草动态
2) farmland weed
农田杂草
1.
Floristic characteristics and ecological distribution of farmland weeds in Henan Province;
河南农田杂草植物区系特征及生态分布
3) farmland weeds
农田杂草
1.
The kinds, distribution, harm and growing periods of farmland weeds in Qinhuangdao area were given on the spot investigation.
实地考察了秦皇岛市下辖的三区四县 (北戴河区、山海关区、海港区、昌黎县、抚宁县、卢龙县、青龙县 )农田杂草的种类、分布、危害及主要杂草的生育期。
4) weeds
[英][wi:d] [美][wid]
农田杂草
1.
Twelve species of pathogenic fungi from the weeds in field in Guangdong province were found and described.
报道了广东农田杂草上的 12种病原真菌 。
2.
The paper presents the chevelopment in research and controlling of weeds in the fields of China,It mainly discusses the current problems and control tactics on weeds in the fields.
本文概述了我国农田杂草研究和防治进展、当前面临的问题及今后的对
3.
The micro-morphology of weeds (10 families, 22 species) seed testa, especially surface ripples ,was observed by the scanning electron microscope so as to compare the differences in different families , genera and species .
本文运用扫描电镜对内蒙古地区常见农田杂草（１０科２２种）种皮的微形态特征进行了观察，着重了解各科植物种皮表面纹饰的特征，比较不同科、属、种间的差异。
5) Farm field
小块农田杂草
补充资料：1,3-二氧杂草
CAS: 505-65-7
分子式: C5H10O2
分子质量: 102.13
沸点:119℃
中文名称:1,3-二氧杂环庚烷；1,3-二氧杂草
英文名称: 1,3-Dioxepane；tetramethylene formal；[1,3]Dioxepan
分子式: C5H10O2
分子质量: 102.13
沸点:119℃
中文名称:1,3-二氧杂环庚烷；1,3-二氧杂草
英文名称: 1,3-Dioxepane；tetramethylene formal；[1,3]Dioxepan
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条