| 摘要 |
<p>Composition and process for the treatment of field plants, mainly for regulating the growth of cereals, soya, maize or sunflower at their vegetative or generative stage of development which comprises containing in a total amount of 1-60% by weight 1 part by weight of 4-methyl-7-hydroxy-¨AD2H¨BDbenzopyran-2-one or a derivative of general formula (I) - wherein R stands for methyl, ethyl, isopropyl, acetyl, chloro-acetyl, propynyl or Cu-, Ni-, Co-, Na- or H - and optionally in the form of soluble salts or chelates - related to the metal ion - 0.00175 - 0.28 parts by weight of boron, 0.01 - 0.625 parts by weight of magnesium, 0.01 - 0.625 parts by weight of copper and 0.0075 - 0.83 parts by weight of zinc.</p> |
