and, even where there are large amounts of straw and plant residues, the coulters run without blocking. the combination of the sowing disc on the one side and the furrow former on the other creates the perfect seed furrow and allows optimum seed depth control. the elasticated, plastic disc prevents soil...
deficiency symptoms: leaf margins, veins and stems show purple tints which may spread over the whole blade. older leaves of the young plants are affected first. affect: the reddish discolouration is usually visible in the juvenile stage only. solution product:fertimax : : gm/lit, fertimax : : ( - gm/lit) soil...
of pahs in the plants. strong correlations were found for phenanthrene between plant accumulation and extractability under very mild extraction conditions. for naphthalene, accumulation did not correlate with its extractability in the industrial soils. the possibility exists that bioavailability in soil...