贵州省林业学校结合贵州省开阳县从河南西峡县、南召县引种山茱萸栽培情况,进行山茱萸引种栽培研究.结合多年栽培经验,在病虫害防治上总结出一套行之有效的措施,以期对黔中地区引种栽培山茱萸的病虫害的预测预报与防治提供参考.

长葶鸢尾是贵州省的新分布种,具有耐寒、繁殖力强等优点,观赏价值高,是具有广泛应用价值的湿地植物.本文阐述了长葶鸢尾的生物学和生态学特性、繁殖栽培技术,并介绍其在切花市场以及湿地造景中的应用前景.

总结了紫金牛科观果植物纽子果的主要病害发生症状及为害情况,以根腐病、茎腐病、炭疽病、疫病、根结线虫病为例,针对性提出了防治措施,以供参考.

通过实地调查和采集标本,结合室内饲养观察分析,对银杏大蚕蛾与寄主发育的关系进行了研究,目的是为了弄清银杏大蚕蛾在贵州省潜在的分布区,科学评估该物种的危害,为及时采取有效应对措施提供依据.根据银杏大蚕蛾在贵州省内的分布点数据以及环境数据,建立Maxent生态位模型,采用受试者工作特征曲线(ROC曲线)分析法,对Maxent生态位模型预测的银杏大蚕蛾潜在分布区结果进行准确性验证.

总结了纽子果的播种育苗技术,包括苗床建设、种子处理、播种、苗期管理、移苗等方面的内容,以供参考.

银杏大蚕蛾在贵州分布较广,以幼虫为害银杏、檫木、桦木、枫香等多种林木叶片.总结了银杏大蚕蛾的生物学特性,并提出了防治措施,以供参考.

发达国家结合特有的资源禀赋条件和现代科技手段，不断改造传统农业，形成了具有不同特色的农业发展模式。本文以日本、瑞典和德国3个国家的特色农业经营模式为例，对比总结了这3个国家的精准农业、循环农业以及观光农业运行方式及特点，以期为中国发展特色农业提供思路与启示。

指出了望谟县为贵州省规划的油茶重要产区之一，具有栽培油茶的良好自然条件和优越的社会条件。分析了望谟县油茶产业存在的问题，针对这些问题提出了扩大油茶种苗供应渠道，试验示范林和优质丰产园栽培技术，多渠道积极资金筹措等发展对策。

In order to research the pollination and fertilization of Cycas guizhouensis Lan et R.F.Zou more fully, the biological characteristics were investigated. The results show that:(1)The plants of C. guizhouensis Lan et R.F.Zou are dioecious, and the blooming frequency of male plant is greater than that of female plant. The male plants are almost blooming annually, and most of the female plants are blooming overyear, also a small number of female plants are blooming 3-4 years interval, these affect sexual reproduction seriously.(2) The funnel-shaped structure of the stem and leave is benefit to the collection of pollen, and the structure of flower is closely associated with the pollination and fructification.(3) Artificial supplementary pollination may improve the fruiting rate and fruiting quantity, the method of fertilization is mainly in the complementary form of wind-pollinated and insect-borne. The insect plays an important role in the increase of pollination, and Apis cerana cerana is the direct communicator. A large abundant of animal groups play a promoting effects on the pollination fertilization. Furthermore, the co-existence mechanism with Tenebrionidae is needed further research.

通过测试不同野生居群贵州苏铁种子质量和形态性状特征,经方差分析、Tukey法多重比较、1％显著性检验,结果得到种子的长度显著性水平较高,其中去除外种皮后显著性更高,成熟贵州苏铁种子外形近圆球形;去除外种皮后种子特征能更好体现贵州苏铁种子型态特性,95％置信区间分析结果得到单粒重5.0822～5.5517g,种长、种宽、种高分别为22.832 7～23.606 3 mm、20.063 5 ～ 20.672 8 mm和18.481 4～ 19.028 6mm,呈卵圆形.研究结果为有效鉴定贵州苏铁物种种实特性提供基础数据.

The flowering frequency and seeding characteristics of different wild populations of Cycas guizhouensis were investigated,and the artificial pollination experiment was conducted. The results showed as follows: 1) the adult male plants blooms almost annually,while the female mainly blooms every other year and some blooms annually or blooms for an interval of 3 ~ 4years; 2) in the natural environment,an individual plant bears an average of 119. 4seeds with seed setting rate of 65. 78%; 3) artificial pollination can efficiently increase the amount of seeds(average 399. 3 seeds) and the seed setting rate reaches 86. 8%( higher than that of control by 21. 08%).

稻田养鱼是对稻田资源的综合利用,在农村具有推广价值。总结了稻田养鱼技术,包括稻田选择、田间工程建设、水稻品种与养殖对象选择、鱼类管理、农药选择与施用、稻田水管理、敌害与鱼病防治、鱼的收获等内容,以供农户参考。

A graduation thesis,the last step for adult student in higher education,can make a student integrate theory with practice,apply the knowledge and skills to solve the problem.It is also necessary to achieve the training objectives. According to awareness-raising,innovative paper evaluation model,the reform teaching method of thesis writing,it is significant to grasp the characteristics of adult students in higher education,improve thesis writing guide and management and improve the quality of thesis writing.

分析了国内外屋顶农业的发展状况,阐述了发展屋顶农业在缓解耕地流失、生态建设和社会影响上的重要意义和特点,就其存在的问题提出相应对策,以期为屋顶农业在我国的大力发展提供参考。

根据雷公山国家级自然保护区的生物多样性现状,从保护区内人为因素、偷猎、盗伐、项目建设、森林火灾等方面分析了生物多样性受干扰的情况,提出了生物多样性保护的对策.

Zunyi County is one of the original producing places for Eucommia in our country,and the Eucommia is excellent in quality,and it is hopeful for the Eucommia to be cultivated into a big industry.To choose Eucommia fine stand,through the base construction for collecting seeds,Eucommia seeds production regionalization,seeds supply all from the base,and the quality standardization are realized.The summary was made from such aspects as the Eucommia distribution zone and resource status determination,and seed collecting base design.And,the major operation measure for seed collecting base is put forward.

德江县地处乌江下游,乌江自西南向东北斜贯县城东南部,全县总面积2071.92km2,石漠化土地面积56060.1hm2,占27.1%,其中轻度、中度、强度、极强度石漠化面积分别为14958.4hm2、31075.3hm2、9734.8hm2、291.6hm2,分别占总面积的7.2%、15.0%、4.7%、0.14%,潜在石漠化面积30210.0hm2,占总面积的14.6%。喀斯特石漠化已成为德江县社会经济可持续发展的主要障碍因子,是影响解决"三农问题"的重要制约因素,威胁到长江上游生态屏障的构建和三峡库区的生态安全。文章对该县喀斯特山区喀斯特石漠化的现状分布特点进行了分析,探讨了喀斯特石漠化的成因,阐述了其危害,提出了开展喀斯特山区土地石漠化治理的有关建议。