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中宁县种子公司自８０年代初开展杂交玉米制种至今已有近２０年的历史。在这漫长的制种实践中，我们不断学习外地先进的技术措施和经验，结合本地实际，逐渐摸索出一套较完整的、适合本地的制种技术措施，制种产量不断提高，品质亦有所改善，产量由最初的６０００ｋｇ／ｈ...
Zhongning County Seed Company since the early 80s to carry out hybrid corn seed production has been nearly 20 years of history. In this long seed production practice, we continuously learn advanced technical measures and experiences in the field and gradually explore a set of more complete and suitable technical measures for seed production according to the local conditions. The seed production is continuously improved and the quality is also improved. Improved, the output from the first 6000kg / h ...