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营养杯育苗,特别适合土质瘠薄的石质山区,它可以一次育苗,多季造林,是加快绿化速度的一种好办法。北票县类家店公社生金皋大队,连续两年用塑料营养杯育苗,造油松林500亩,1982年造林成活率达92.4％,保存率达73.1％。制做营养杯,首先要选土配料。黄土要占41.5％,松根土占41.5％,羊粪占16.6％,过磷酸钙占0.4％。羊粪要腐熟后倒细过筛,松根土要去掉草根、碎石等杂物,过磷酸钙也要粉碎过筛,配料要混合搅拌均匀。
Nutrition Cup nursery, especially for infertile stony mountainous areas, it can be a nursery, multi-season afforestation, is to speed up the rate of greening a good way. Beipiao County class shop commune Sheng Jingao Brigade, for two consecutive years with plastic nutrition cup nursery, oil-yielding pine forest 500 acres, 1982 afforestation survival rate of 92.4%, the preservation rate of 73.1%. Making nutrition cup, first of all to choose soil ingredients. Loess accounted for 41.5%, pine root soil accounted for 41.5%, sheep dung accounted for 16.6%, superphosphate 0.4%. Sheep manure to decanting carefully sifted, loose roots to remove grassroots, gravel and other debris, superphosphate have to crush sieve, ingredients to be mixed and stirred evenly.