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  • 1.
    [发明专利]JP19740078584 _ CHISSO CORP 1974年07月09日
  • [发明专利]US19740449322 _ TENNESSEE VALLEY AUTHORITY 1974年03月08日
    A process for applying a precisely uniform solid coating of fluid material onto solid substrate particles where in one embodiment the surface of the substrate material is smoothed by superficial fusion and rolling in a rotary drum, and multiple, thin,...
  • [发明专利]US19740475882 _ O. M. SCOTT AND SONS COMPANY 1974年06月03日
  • 4.
    [发明专利]US19740517452 _ 1974年10月24日
  • [发明专利]US19740512090 _ GENERAL PORTLAND, INC. 1974年10月04日
    A solid controlled release fertilizer of a discrete particle of a fertilizer material encapsulated within a coating of partially hydrated cement is provided. In a preferred embodiment, the partially hydrated cement coated fertilizer particle is encaps...
  • [发明专利]US19740510169 _ STANDARD OIL COMPANY 1974年09月30日
    Aqueous ammoniacal ionic solutions of zinc carboxylates, particularly zinc acetate, containing up to about 20 wt. % zinc, provide soluble zinc for plant nutrient purposes. The solution is at least 10% by weight water and includes at least 4 mols of am...
  • [发明专利]US19740451201 _ POSTRIHAC, RUDOLF 1974年03月14日
    A biological fertilizer is prepared by a process which comprises treating sewage sedimentation sludge with sulphite waste liquor, the treatment being carried out at a pH of no more than 6, followed by mixing the mixture of treated sludge and waste liq...
  • [发明专利]US19740446577 _ BAYER AKTIENGESELLSCHAFT 1974年02月27日
    Inorganic-organic compositions obtained from a mixture of components comprising:
  • [发明专利]US19740455967 _ AJINOMOTO CO., INC. 1974年03月29日
    The newly discovered alga Prototheca sphaerica grows readily on waste water discharged from many plants of the food industry, and compares favorably with Chlorella in its nutritive value.
  • [发明专利]US19740458631 _ CHEVRON RESEARCH COMPANY 1974年04月08日
    Hydroxy-aluminum nitrate polymer and ammonium nitrate are produced by reacting aluminum nitrate and urea in aqueous solution. The hydroxy-aluminum nitrate polymer is useful for consolidating soil in secondary oil recovery and for reducing the caking t...
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