大豆田杂草抗性调查

1、大豆田杂草抗性调查表调查目的：通过调查大豆产区田间杂草发生规律和当地用药情况，了解大豆田抗性杂草分布和发生情况并结合当地实际和相关试验制定合理的化学防治方法，更好的防治大豆田杂草实现大豆增产增收。调查县市（地点）：木兰县调查项目具体情况大豆品种黑农48土壤情况黑土 肥力中等前茬作物玉米施肥情况玉米专用复合肥25kg用药时间5月15日常用大豆除草剂种类、剂量及防除效果乙草胺170ml+噻吩磺隆5ml/亩耕作情况旋耕不同耕作制度对田间杂草的影响杂草种类（见附表）抗性杂草种类（见附表）杂草发生密度（株/平方米）（见附表）杂草频率（见附表）抗性杂草出现前（用药水平用药剂量）乙草胺170ml+噻吩磺隆5

2、ml/亩现用药水平（用药量）乙草胺170ml+噻吩磺隆5ml/亩大豆田杂草调查表调查日期序号杂草种类是否为抗性（难防）杂草杂草均度杂草密度杂草频率杂草相对均度杂草相对密度杂草相对频率相对多度危害程度6.51稗草否77380902014.72050.4二级2铁苋菜是16170206.34.84.614.5二级3苍耳是716305019221657二级4苣荬菜菜否31330308.510.98.027.6二级5问荆是16220204.27.04.015.2二级6狗尾草否16120304.33.88.016.1二级7蓟菜是1280203.22.64.010.1二级8苘麻是642308017.07.7

3、16.030.7二级9蓼否16130304.34.28.016.3二级10黎否557505014.924.312.051.2二级6.251稗草否8075010022.222.123.869.4二级2铁苋菜是16380204.7114.820.8二级3苍耳是524505015.113.714.343二级4问荆是12120203.53.64.811.9二级5苣荬菜否12220203.56.54.814.8二级6狗尾草否31280309.38.59.527.1二级7蓟菜是16180204.75.44.814.9二级8苘麻是763908022.111.619.052.7二级9蓼否31150309.34

4、.89.523.6二级10黎否16420204.712.54.822.0二级7.151铁苋菜是28650309.518.410.037.9二级2问荆是8120202.03.45.011.4二级3苣荬菜否4120201.43.45.09.8二级4苍耳是28330309.59.610.029.1二级5狗尾草否363303012.29.610.031.8二级6蓟菜是16230305.46.810.022.2二级7苘麻是555805018.916.415.050.6二级8蓼否311903010.85.410.026.2二级9稗草否8895010029.726.925.080.6二级7.251苍耳是20

5、130306.93.79.520.1二级2问荆是480201.42.14.88.5二级3苣荬菜否490201.42.44.88.6二级4稗草否96105010033.327.823.884.9二级5狗尾草否365205012.513.814.330.6二级6蓟菜是313003011.57.99.528.5二级7苘麻是526508018.117.519.054.6二级8蓼否16220205.65.84.816.2二级9铁苋菜是28720309.719.09.538.1二级大豆田抗性杂草调查表调查日期序号杂草种类抗药种类杂草均度杂草密度杂草频率杂草相对均度杂草相对密度杂草相对频率相对多度危害程度6

6、.51苍耳苍耳726808019.121.716.055.8二级2问荆问荆16220204.27.04.015.2二级3蓟菜蓟菜1280203.22.64.010.1二级4苘麻苘麻642308017.07.716.030.7二级5铁苋菜铁苋菜16180204.35.84.014.1二级6.251苍耳苍耳524505015.113.714.343二级2问荆问荆12120203.53.64.811.9二级3蓟菜蓟菜16180204.75.44.814.9二级4苘麻苘麻763908022.111.619.052.7二级5铁苋菜铁苋菜16380204.7114.820.8二级7.151苍耳苍耳28330309.59.610.029.1二级2问荆问荆8120202.03.45.011.4二级3蓟菜蓟菜16230305.46.810.022.2二级4苘麻苘麻555805018.916.415.050.6二级5铁苋菜铁苋菜28650309.518.410.037.9二级7.251苍耳苍耳20130306.93.79.520.1二级2问荆问荆4802