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目的:研究确定宁夏贺兰山东麓梭梭育苗的适宜播种期。方法:设6个播期,播种38天后调查各播期梭梭苗生长情况,同时记录气温变化;1年后调查各播期梭梭株高、根长、茎基粗。结果: 播种38天后调查,5月初播种的梭梭苗生长速度较快;3月下旬至4月上旬播种的梭梭苗生长量显著高于其它播期;结论:在宁夏进行梭梭育苗,3月下旬至5月上旬均可播种,3月下旬至4月中旬播种,梭梭苗生长量最大;4月下旬至5月上旬播种,梭梭苗生长速度最快。
Objective: To study and determine the appropriate sowing date of Haloxylon ammodendron pastoral foothills in Helan Mountain of Ningxia. Methods: Six sowing dates and 38 days after sowing were conducted to investigate the growth of Haloxylon ammodendron during each sowing date. The changes of air temperature were also recorded. One year later, the plant height, root length and stem diameter of Haloxylon ammodendron were studied. Results: After seeding for 38 days, the seedlings of Haloxylon ammodendron planted in early May grew faster; the growth of Haloxylon ammodendron seedlings sowed in late March to early April was significantly higher than that of other sowing dates; Conclusion: Seeds can be planted from the end of May to early May, and from late March to mid-April. The growth of Haloxylon ammodendron seedlings is the largest. From late April to early May, Haloxylon ammodendron grows fastest.