马尾松壮苗培育技术试验初报

通过控制播种时间、定苗时间和苗木保留密度可以有效地控制马尾松大田苗的抽梢，以达到培育壮苗、提高单位面积合格苗产量的目的。龙岩地区马尾松大田苗播种时间可选择在３月５—３０日之间，定苗时间可选择在７月中、下旬，苗木保留密度，苗圃土壤条件较好的可控制在２７０—３００株／ｍ２，苗圃土壤条件较差的可控制在３１５—３４０株／ｍ２左右。

Preliminary Experimental Report on the Cultural Techniques of Vigorous Seedlings of Pinus massoniana

Several techniques are adopted to culture vigorous seedlings of Pinus massoniana.In Longyan Pre- fecture,the sowing time of field seedlings of P.massoniana can be selected between March 5 and March 30,the time of fixing seedlings can be selected between July 11 and July 31,and the retained seedling density can be controlled:270 300 seedlings per m2 for the better soil conditions and 315 340 seedlings per m2 for the relatively poor soil conditions in nurseries.