1992年9月国务院作出“大力发展高产优质高效农业”的决定后,我们为加快小麦优良品种的推广步伐,研究试行了“两级繁育、两级供种,一年一更新”的种子繁供体系。经过二年的实践,现已取得初步成果。针对我县小麦需种数量多供种难度大的特点,我们在产量质量并重的思想指导下,选择好高产优质品种的基础上,研究和试行了“两级繁育,两级供种,一年一更新”的做法。我们新开发 After the State Council made the decision of “vigorously developing high-yield, high-quality and high-efficiency agriculture” in September 1992, we have tried our best to speed up the popularization of fine varieties of wheat, and tried and tested “two levels of breeding, The seed multiplication system. After two years of practice, preliminary results have been achieved. In view of the fact that the quantity of wheat needed in our county is large and difficult for supply, under the guidance of giving equal weight to yield, we have selected and researched the high-yield and high-quality varieties, Yearly update ”approach. We have newly developed