多年生香豌豆在河北省引种试验

为解决水保功能和经济效益兼有的植物资源短缺问题,"948"项目从美国引进的水土保持优良植物和牧草—多年生香豌豆。经过河北省多点试种研究表明,其具有适应性强、生长迅速、耐干旱、耐瘠薄、产草量高、覆盖度强、再生性好等特点。多年生香豌豆生长迅速,当年生枝条可达150cm以上;抗旱能力强,在土壤含水量2%的情况下持续4天,仅地上部枯萎,复水后可重新萌发植株;再生能力强,6月上旬刈割后经过45天即可达到100%的覆盖度。多年生香豌豆在河北省属于首次引种,适合于在河北省中南部地区种植推广。

Experimental Study of Introduction of Perennial Pea in Hebei Province

In order to solve the shortage of plant resources which have both water conservation function and economic efficiency,the perennial pea(Lathyrus latifolius),a high quality plant for water and soil conservation,was introduced from USA through the "864" project.Many experimental studies of introduction of this type of pea have been conducted in Hebei province,which showed that it has several advantages including strong adaptability,high growth rate,drought tolarence,barren tolarence,high grass yield,large coverage,and good reproducibility.The perennial pea has a rapid growth rate,and it can grow branches which can reach more than 150 cm in length at the same year.It also has a strong drought tolarence such that only the overground part of the pea wilts with a soil water content of 2% for 4 days,and it can germinate again after rewetting.Furthermore,the perennial pea has a strong ability of reproduction.For instance,it can achieve a 100% coverage in 45 days after harvesting in June.The introduction of perennial pea was the first time in Hebei province,and its success suggested that its cultivation is suitable to popularize in the central and southern parts of Hebei province.