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我市在1988年11月从江苏省农科院土肥所引进1000个杂交狼尾草种根进行越冬保种试验,去冬今春又进行自留种根的越冬和栽培利用试验,均取得了一定的成效,并在全市逐步推广。我们从实践中体会到,要进行大面积的推广,关键要做好越冬保种管理,解决苗种来源。1.越冬时间宜提前。前两年种根进入越冬苗床的时间,一般选择在立冬后一星期内(11月8日～16日)。这时候的天气变化大,气温都曾到达零度以下,造成未进池和刚进池的种根受冻死亡,而立冬前进苗床的和留在越冬池内的老根就没有冻坏,去冬
The city in November 1988 from the Jiangsu Provincial Academy of Agricultural Sciences soil fertilization by the introduction of 1000 hybrid Pennisetum seedling overwintering seedling maintenance test, winter and spring this year for the self-sustaining seedling overwintering and cultivation and utilization tests, have achieved certain The effectiveness of the city and gradually promote. We have learned from practice that to carry out large-scale promotion, the key is to do a good job of winter species management to solve the seed sources. 1. The winter time should advance. The first two years of planting roots into the winter seedling bed time, the general election within one week after winter (November 8 to 16). This time the weather changes, the temperatures have reached zero below, resulting in not into the pool and just into the pool of seedlings were frozen death, and the winter advance seedbed and stay in the overwintering pool in the old root no frost damage, winter