塘子镇某养殖基地猪消化道寄生虫初步调查

塘子镇某养殖场是寻甸县集约化养殖示范场。为今后寄生虫病防洽工作提供依据，于1996年9月对该场29头本地猪，17头四川长白杂交猪，进行药物驱虫后，作消化道寄生虫病调查。选用广谱驱虫药两硫苯咪唑片，按15mg／kg空腹随料投服。服后36～48小时，将所排粪便分厩舍收集，以沉淀法检出虫体用5％甲醛保存，在实验室进行分类鉴定。结果共驱出猪消化道寄生虫991条，其中猪蛔虫560条，猪毛首线虫347条，有齿蛔状线虫84条，隶属3科3属。猪蛔虫（AscarissuumGoeze，1782）属大型线虫。该场猪只的感染率不低于40％，尤其是本地仔猪，感染率可达70～…     

浅谈稻苗生理性烂秧

稻苗生理性烂秧症状：叶片上部外缘卷曲、黄化、枯死、生长停滞、根系腐烂，相伴多种病菌侵入、死苗。     

温室大棚黄瓜霜霉病的综合技术分析

正霜霉病通常在温度较高、湿度较大的环境中滋生和发展,大棚的环境有利于霜霉病的滋生,同时这样的环境也可以加快霜霉病的蔓延,出现大面积危害。霜霉病又有"火龙秧子"、"跑马干"、"干叶子"的俗称,这是一种常发性叶部病害,严重危害温室大棚黄瓜的生长和产量。这种病在苗期和成株期均有较高的发病率,苗期发病主要表现为叶片发黄,逐渐枯死;成株期发病主要表现为有水渍状失绿小斑点先出现在叶脉间,后期逐渐变黄,病斑扩大,由于大棚里     

裳凤蝶污斑亚种的生物学与规模化饲养的初步研究

The largest and most precious Chinese butterfly Troides helena spilotia Rothschild is occurring all year round with overlapping 6 generations in Hainan Jianfengling forest each year. The appropriate growth temperature for it is 25－30 ℃, and the humidity is 70%－80%. Large-scale artificial breeding of Troides helena spilotia Rothschild need to comply with the requirements of their breeding rooms by planting host plants for their eggs. Dilution of the concentration of honey and water is 10%－15% in summer and 5% in winter; the eggs should be moisturizing when collecting indoor and outdoor. The larvae should be transferred to the host plants planted in the field with net bags; and transfer them to different host plants timely according to their instars and food intake; the indoor population density should be controlled. Due to the 4－5 instars larvae will ingest a great deal of food, they need to be fed 3 times a day in the morning, afternoon and the evening. The ways to suspend the pupa when feeding indoor and outdoor vary according to the breeding facilities. The pupa should be collected and put in the emergence room and hung them up according to their natural shape. The suitable temperature for it is 25－28 ℃, and humidity is 60%－80%.     

农业技术推广在基层中的问题和解决对策分析

正农业是国家经济发展、社会进步的基础。农业建设工作是我国现代化建设中重要的组成部分,对此,必须加强农业技术在基层的推广。本文对农业技术推广部门存在的问题以及农业技术推广过程中的问题进行分析,并给出相关解决建议。以期提高我国农业技术推广水平,为农业现代化建设贡献一份力量。我国是一个农业大国,农业在我国经济社会发展中占据着重要地位。"三农"问题一直是党和国家最为关心的问题。近年来,随着科学技术的发展,农业