施必丰在蚕桑生产上应用效果的研究

The Application of“Shi Bi Feng”in Sericultural Production

在桑树叶面喷施施必丰，有提高桑叶中叶绿素含量，增加光合作用强度的效果。可溶性糖、脂肪、蛋白质三种合成产物的总量。春秋季分别增加８．３１％和９．４７％；春季两点桑叶平均亩达１３０．８Ｋｇ，增产率为２７．１％；秋季桑树枝条比对照增长８．４５％，鲜叶增产率为３２％。蚕茧产量增加４．４７％。丝长增加１０３．４ｍ，解舒丝长增加１４．６７ｍ，茧丝量增加０．０４９ｇ，干毛茧出丝率增加１．６９％，纤度提高０．１０Ｋ。饲蚕试验结果说明，对幼虫体质和茧质无明显影响。

The effects of“shi Bi Feng”on the growth of mulberry and silkworm was studied. Afterthe application of“shi Bi Feng”on mulberry trees,the mulberry leaf yield was increased by27.1%in spring,and by 32%in Autumn,the total content of carbohydrates,proteins andfats in the leaf was increased by 8.31%in spring,and by 9.47%in Autumn. The cocoonyield increased by 4.47%,silk per cocoon by 0.049g,raw silk rate of dry gross cocoon by1.69%,and length of filament and non-broken filament by 103.4m and 14.67m,respective-ly,after the silkworms were fed on the leaves from“Shi Bi Feng”treated trees.