All posts by thump2022

As there are currently ten ALS inhibitor-resistant weed species in Ontario, dry bean growers will have difficulty controlling these weeds without another mode of action . This study aimed to determine the tolerance of white bean to tank mixes of sulfentrazone + s-metolachlor + halosulfuron and to determine if a low dose of halosulfuron added…

The current study’s results support the tendency of herbicide treated plots’ soil temperatures to have a more direct relationship with local air temperatures, whereas mulched plots were more insulated to ambient conditions . Generally, landscape fabric and woodchip mulch tended to perform similarly, having high August temperatures and the ability to retain higher soil temperatures…

This phenomenon was attributed to 2,4-D which stimulates uncontrolled cell growth and proliferation in treated plants. This may have also skewed the control data on the larger sicklepod plants which would lower the control rating by 2,4-D alone treatments and to a lesser extent, the dicamba alone treatments. These effects were not observed with the…

This leads to decreased levels of plastoquinone in plant tissue and reduced photosynthetic yield . Indirect inhibition of phytoene desaturase as a consequence of blocked plastoquinone biosynthesis subsequently leads to a decrease in carotenoids and consequently prevents stabilization of the photosynthetic apparatus so that chlorophyll molecules are destroyed by excessive light energy. Inhibition of HPPD…

The bio-fertilizers, being alternative low-cost plant nutrient resources have gained prime importance in recent decades and they play a vital role in maintaining long term soil fertility sustenance. The SSNM avoids indiscriminate use of nutrients by preventing excessive and/or inadequate nutrient inputs and helps to maintain soil health over a long period of time. The…

These authors found that densities as low as 1 weed plant per linear m−1 is enough to significantly reduce crop yield. Beltrano and Caldiz  found similar results, caused by different densities of Johnson grass . The latter authors found that 17, 34 and 51 plants∙m−2 of Johnson grass decreased tuber yield by 80%, 85% and…

The majority of marijuana use studies focus on adolescents and attempt to delineate the causal mechanisms driving initial use, though some also attempt to explain continued use ; however, studies of adults who continue to use are relatively rare. This is due, in large part, to the history of funding by federal agencies,which tend to…

Higher rates has been reported in Benin,south-south Nigeria and Ile-Ife south west Nigeria.These studies were not only separated be several years but were also conducted in different regions of Nigeria and may suggest not only a possible decline in the use of the substance but socio-cultural influences. All these studies reported male dominance which is…

The higher richness and diversity in spring-summer observed for edges relative to field plots concurs with other studies which may be due to the absence of chemical control in edges as ocurred in an-other study .Crop fields are characterised by considerable herbicide applications which may partially explain why their weedy vegetation is different from edges…

The experiment was carried out at the Agronomy Field Laboratory and Weed Management Laboratory, Department of Agronomy, Bangladesh Agricultural University, Mymensingh during the period from February to June 2016. Geographically the experimental area is located at 24˚75’N latitude and 90˚50’E longitudes at the elevation of 18 m above the sea level. The experimental field was…