What happened next (indeed, what was probably already happening) was the deliberate planting of wild seeds, in order to make the gathering process less onerous.
接下来发生的(或是已经存在的)是为了减轻繁重的采集工作,有意识地栽培野生植物。
The protective strategies of collecting seeds for breeding and enlarging planting area should be carried out.
对粘木的保护应采取采种育苗,扩大其种植面积的保护措施。
The experiments proved that the planting quality of cotton seeds can be improved, that are delinted by the home —made foam sulfuric acid delinter.
并证明棉子经我国自行研制的泡沫酸脱绒机处理,能有效地提高播种品质。
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