腾冲县农业科技干部刘东才钻研３０余年 ,其载种胞覆块栽培技术、多功能喷雾器和化肥深施器的发明与运用等获得国家专利 ,并在局部地方试验推广成功。到目前 ,他的科技发明已有１１项申报国家专利局 ,其中１０项已授权。１９９３年 ,获国家专利的载种胞覆块栽培技术 ,在东北的? Liu Dongcai, an agricultural science and technology cadre of Tengchong County, studied for more than 30 years and won the national patent for its invention and application of multi-functional sprayer and fertilizer deep-planting device, and successfully popularized it in local trials. Up to now, he has declared 11 state patent offices for technological inventions, of which 10 have been authorized. In 1993, the national patent-covered cell cover block cultivation techniques, in the northeast?