and prevent erosion. drought resistance. gm crops that express drought resistance can grow in much drier areas, conserving water and other environmental resources. disease resistance. through genetic modification, the hawaiian papaya industry was able to overcome the papaya ringspot virus, which had...
"resistance to pests and disease allows farmers to reclaim prime cropland infected with verticillium wilt while, at the same time, reducing soilerosion by extending plantation life of their mint fields," said nemeth....
or soil cement.* natural geological liners occur when the hydraulic conductivity of the formation soils or rocks are sufficiently low that the rate of seepage is reduced to an acceptable value. mass permeability values of less than 1x10-8 m/s can typically be achieved. fractures in and heterogeneity...
نويسنده , issue information : روزنامه با شماره پیاپی سال pages : from page : to page : abstract : the shear resistance of muddy sediments directly governs the susceptibility of the sediment to erosion by tidal and wave induced currents. measurements of the natural erosion shear stress are important in...
conditioners seed identification building & construction high density concrete heavy weight ballast counterweights radiation shielding radiation shielding hospital radiation shielding nuclear floor screed portland cement alternative tunnels and underground structures bridges coastal erosion protection...
national parks. in fact a year old cedar was found growing on flowerpot island, making it the oldest known living tree in canada. even more surprising is how the ancient ecosystem survives at all. the cedars, lichens and mosses are growing on ledges and out of cracks in sheer rock faces, far from any soil...
elements (or micronutrients) with a role in plant nutrition: boron , chlorine , manganese , iron , zinc , copper , and molybdenum . in the past, both organic and inorganic fertilizers were called "manures," but this term is now mostly restricted to man-made manure. contents history key people industry soil...
borne pathogens. in latent affected plant material biohealth® th/bs wsg remains ineffective, due to the reason that the antagonist cannot follow the parasite into the inside of the plant. therefore biohealth® th/bs wsg has to be regarded as a soil conditioner or rather a plant intensifier and under...