沙荒地文冠果播种育苗技术试验研究

Breeding Techniques of Xanthoceras sorbifolia on Sandy Wasteland

针对沙荒地文冠果种子育苗存在的出苗率低、出苗不整齐、苗木质量差等问题,选择播种时期、覆盖方式、种子处理方法、播种方式4个影响因素作不同处理组合对比试验分析,结果表明:春季文冠果种子育苗以4月25日播种,采用覆膜+沙覆盖方式,种子高温催芽,覆膜点播的组合方式最佳,其出苗率和生长量明显高于春播的其他处理组合,是沙荒地文冠果春季播种比较理想的组合方式;秋季育苗其出苗率比春播处理组合平均高22.8%,苗木地径比春播平均高31.6%,即10月28日播种,采用土覆盖,种子不处理,开沟条播的处理组合是秋季文冠果沙荒地育苗的最佳选择。

Aiming the problems (low seedling emergence,irregular emergence,and poor quality of seedlings)of Xan-thoceras sorbifolia on sandy wasteland,the four factors (the sowing period,covering methods,seed treatment,and sowing methods)were selected to analyze the different treatment combinations.Result shows that:the optimal com-bination mode for breeding by seeds of Xanthoceras sorbifolia in spring is :sowing in April 25th +using film &sand covering mode+ seed germination with high-temperature,spot sowing with film mulching;the emergence rate&growth are significantly higher than that of spring sowing;it is an ideal combination for spring sowing of Xantho-cerassorbifolia;the emergence rate in autumn are averagely 22.8% higher than that of treatment for spring sowing;DBH of seedlings are averagely 3 1 .6% higher than that of spring sowing,that is,the optimal selection is sowing in October 28th+ soil covering + seed without treatment + drill seedling with ditching.