TY - JA AU - Kimber,R.W.L. TI - Phytotoxicity from plant residues III. The relative effect of toxins and nitogen immobilization on the germination and growth of wheat SN - 0032-079X PY - 1973/// CY - Dordrecht (Netherlands) PB - Springer KW - AGROVOC KW - Nitrogen KW - Plant growth KW - Immobilization KW - Plant physiology KW - Straw N1 - Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0032-079X N2 - Proximity of new wheat straw residues to sown wheat seed has an effect on germination, plant growth and ultimate yield. Decomposition of wheat straw may produce toxins or it may cause immobilization of nitrogen in, or applied to the soil. In pot experiments, it has been shown that germination of wheat was depressed when large amounts of straw were decomposed on the surface for up to 18 days; after 54 days it had no effect on germination. Immobilization of nitrogen occurred mainly when the straw was mixed with the soil, or when surface-rotted straw was ploughed into the soil just before seeding. The latter effect could not be overcome by the addition of mineral nitrogen T2 - Plant and Soil ER -