榆林沙区沙芥人工栽培试验研究

Artificial Cultivation Experiments of Pugionium cornutum in Sand Area of Yulin City

通过在榆林沙区不同立地条件下进行沙芥栽培试验,结果表明:高垄整地种植沙芥,出苗率高,出苗整齐。穴内留苗2~3株产量较大,高垄整地沙芥年产量最大,是平沙地和背风坡脚的4.52倍和3.42倍;穴内留苗株数与立地条件对沙芥产量的影响均达到差异极显著(P<0.01)水平,但两者交互作用影响较小,作用大小依次为留苗数量>立地条件>立地条件×留苗数量;沙芥产量年变化为单峰曲线,可划分为缓慢生长期、旺盛生长期和衰退期。

Pugionium cornutum was cultivated by different ground conditions in the Sand Area of Yulin City.Result shows that the seedlings of Pugionium cornutumcame out evenly and the seedling rate is high which were planted in high rows.The yield of Pugionium cornutumis higher when there are 2-3 strains of seedling in the cavity.And the annual yield of Pugionium cornutumis the highest,which is 4.52 times of plain sand and 3.42 times of leeward slope.Two-way ANOVA shows that the effects of the number of seedlings left in the seedbed and the standing conditions on the yield of Pugionium cornutum are significant(P<0.01),but the interaction between the two groups is as follows:the number of seedlings left in the seedbed> site conditions>site condition ×the number of seedlings left in the seedbed.The annual variation of its yield is single peak curve,which can be divided into slow growth period,strong growth period and recession period.