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在柞蚕生产中,养小蚕用自然蚕场,面积大、条件差,小蚕损失多,收蚁保苗率仅50%左右,收蚁结茧率仅20%左右,是柞蚕生产上存在的一个重要问题。为此,我所在1960年即着手研究,取得一定进展。1970年以来,本着简易密植速成的原则,从保苗场的树种评选、建设管理和养蚕等方面,开展了试验研究。一、保苗场树种的评选主要选用易于种植,资源丰富,适应性较强的蒿柳(Salix Viminalis L.)、麻栎(Querousacutissima Carr.亦称尖柞)、辽东栎(Q.liaotungensis Koidz.亦称辽东柞)、蒙古栎(Q.mongolica Fisch.亦称蒙古柞)及山荆子(Malus baccata Borkn)等柞蚕饲料树种。通过种植和养蚕及物候生长观察、叶质分析、资源调查等进行评选。(一)蒿柳:叶片狭长,且多,叶质软、
In the tussah production, raise silkworms with natural silkworm farms, large area, poor conditions, loss of small silkworms, ant harvesting rate of only 50%, received ants cocoon rate of only about 20%, is an existing tussah production important question. For this reason, I started to study in 1960 and made some progress. Since 1970, in accordance with the principle of quick success and quick succession, experimental research has been carried out on tree species selection, construction management and sericulture in the seedling conservation field. First, seedling selection of seedlings mainly use easy to plant, rich in resources, strong adaptability Artemisia (Salix Viminalis L.), Quercus acutissima Carr (Quercus acutissima Carr), Quercus liaotungensis (Q.liaotungensis Koidz. Known as Liaodong oak), Q. mongolica Fisch (Mongolian oak) and Malus baccata Borkn. Through planting and sericulture and phenological growth observation, leaf quality analysis, resource investigation, etc. were selected. (A) Artemisia Willow: narrow and long leaves, and more, leaves soft,