Patents by Inventor Qina HUANG

Qina HUANG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • ORGANIC FERTILIZER FOR CONTROLLING POLLUTION OR ACCUMULATION OF HEAVY METAL CADMIUM IN RICE AND PREPARATION METHOD AND APPLICATION METHOD THEREOF
    Publication number: 20220220042
    Abstract: A organic fertilizer for controlling pollution or accumulation of heavy metal cadmium in rice and a preparation method and an application method thereof are related to the technical field of fertilizers. The fertilizer is, based on 100 kg of organic material with a water content of 15%, added with 0.05-5 kg of iron salt calculated as iron, and is also added with manganese salt, zinc salt and copper salt, wherein a mass ratio of the iron salt calculated as iron, the manganese salt calculated as manganese, the zinc salt calculated as zinc and the copper salt calculated as copper is 1: 0.2-8: 0.08-2: 0.001-0.5.
    Type: Application
    Filed: November 20, 2019
    Publication date: July 14, 2022
    Applicant: CHINA NATIONAL RICE RESEARCH INSTITUTE
    Inventors: Guosheng SHAO, Qina HUANG