山东退休专家农业科技开发部向您推荐玉米、小麦良种一、玉米良种１９９４年度，我部配制玉米杂交种１０个组合，６０００余亩，同时定购全省区试早熟组达标的泰单９１泰单９２等。约可提供良种１５０万公斤。关于种子质量，我部采取“专人分管；抓关键环节，如选自交系、... Shandong retired experts Agricultural Science and Technology Development Department to recommend to you corn, wheat varieties, corn varieties In 1994, the Ministry of preparation of 10 combinations of corn hybrids, more than 6,000 acres, while ordering the province pre-trial group reached the standard Taiyoun 91 Tai Shan 92 and so on. Approximately 1,500,000 kilograms of elite seeds can be provided. Regarding the quality of seeds, I take the "special person in charge; grasp the key links, such as selected from the intersection, ...