The (J,K) = (1,1) metastable ammonia line was searched for in the direction of more than one hundred southern HII regions located between 270◦and 15◦ in galactic longitude, resulting in new detections toward 21 of them. Ammonia detection rate was about 30 % towards all directions except in the longitude interval 270◦–290◦ where no ammonia lines were found in the 15 selected HII regions. A high ...

little information is available on the effects of applying compost tea to species in dry regions. compost from agricultural waste can promote drought resistance in plants and increase their growth by improving soil structure and providing nutrients and enhancing the capacity of the soil to store moisture. in order to examine these effects, compost tea was tested on two species growing in dry re...

Determining longitude is incredibly difficult--for humans. Are animals fooling us into thinking that they have bicoordinate maps? New experiments show that at least some creatures effortlessly solve the seemingly insoluble problem of longitude.

dormancy of eastern dodder and african rocket seeds makes the controlof them very difficult in orchards and farms. in order to study the effective factors in dormancy breaking of these two weeds species, a factorialexperiment based on crd with three replications was conducted at the research laboratory of birjand faculty of agriculture in 2008 and 2009. treatments were: control, soaking in sulf...