水稻超早育秧试验总结

Experimental Summarization on Ultraearly Seeding Nurturing in Rice

选择活动积温比虎林地区多150～200℃的12～15叶越区晚熟品种,通过提早扣棚,增加活动积温,使其正常成熟。结果表明:在虎林区选择12～13叶品种才能安全成熟,其中株高过高的品种要注意肥水调控,防止其倒伏,增施磷钾肥,使茎秆粗壮,提早成熟;秧苗管理要防止徒长和干枯,更要防止因育苗时间过长引起早穗。

The late rice variety with 12 to 15 leaves, which need more active accumulated temperature byl50 to 200℃ than that of Hulin area, was chosen as entries, the experiment was carried out to increase active accumulated temperature through the early building of plastic tunnels to ensure the rice mature normally. The results showed that in Hulin area, it is save to select rice variety with 12 or 13 leaves. The phosphorus and potash fertilizers should be used to strengthen the culm against lodging and to cause maturity in time. The vain growth of seedlings had to be controlled; otherwise, the long growing period could result in preheading.