The results of different type which mulberry orchard intercropping soybean indicated that: the output increasing 15.
桑树定植前2~3 a产叶量及产茧量低,单位桑园效益低。
Therefore ,the method is well worth spreading in mulberry fields in mountainous regions.
对攀西桑园省力化培桑技术进行了研究和实践,结果表明,用地膜覆盖技术可以减少杂草生长,降低桑园病虫危害,节约桑园除草施肥工日,降低生产费用,提高劳动生产率。
Comment on Urban Afforestation and Park Management in Beijing and Europe;
京欧城市绿化公园管理之我见——赴荷兰等欧洲数国绿色群落培训和考察所感
New Trends in the US Type Park Management;
美国公园管理的最新发展趋势
The author introduces the general situation of the landscape protection at home and abroad,studies the reasonable model of the park management and the planning through the comparison of two theme parks in the east coast in Shenzhen,compares the difference of the planning in two theme parks to protect the natural environment in the park and improve the ecological environment.
介绍了国内外景观保护的概况,通过对比深圳东海岸两大专题公园的规划要点,研究了公园管理与规划的合理模式,比较了两大公园规划上存在的区别,从而更好地保护公园区内的自然资源,达到改善生态环境的目的。
An Analysis of the Whole Process School Management Mode——A Revelation of the Successful Development of Jilin Huaqiao For-eign Languages Institute;
全过程校园管理模式的评析——吉林华桥外国语学院成功发展的启示
Design and Realization of the School Management System of Secondary Schools Based on .NET;
基于.NET的中学校园管理系统的设计与实现
SWOT analysis and marketing strategy research on Bosun mulberry juice
宝桑园桑果汁SWOT分析及营销策略研究
A comparison on Leaf Yield and Benefits Between Shoot-harvesting and Leaf-picking Methods in Mulberry Field
桑园条桑收获和片叶收获的产量和效益比较
Ecological Protocol on the Identifying Resistance to the Mite and an Acaricide Research in Mulberry
桑树抗螨生态指标体系的构建及桑园专用杀螨剂的研究
Study on Nutrients Limited Factors and Prescription Fertilization Techniques of Mulberry Orchards in Hubei;
湖北省桑园养分障碍因子及配方施肥研究
Studies on the Community Structures and Population Dynamics of Mulberry Insect Pests-natural Enemies;
桑园害虫、天敌种群动态及群落结构研究
Effect of 40% Chlorpyrifos Emulsifiable Concentrates to Silkworm with Spraying Application in Mulberry Field
40%毒死蜱乳油在桑园使用后对家蚕的影响评估
Input-output Method and Application in the Land-value Evaluating of Mulberry Field --A Case of County AnHai,JiangSu Province;
投入产出法及其在桑园地价评估中的应用——以江苏省海安县为例
Specialized Mulberry Orchards and Their Ecological Economical environment in Jiaxing and Huchou Plain in the Late Ming and Early Qing Dynasties
明末清初嘉湖平原的专业化桑园及其生态经济环境
Research on Comprehensive Prevention of Snail and Slug in Mulberry Field;
桑果园蜗牛、蛞蝓综合防治技术研究
Lecture des romans champêtres de George Sand;
赤子的诗意——乔治·桑田园小说解读
History and Prospects of Mulberry and Catalpa Kaempferi Applied in Landscape Greening
试论桑梓在园林绿化中应用的历史与前景
A Survey to Hibiscus rosa-sinensis Cultivar Resources in Hainan and Their Application in Landscaping
海南扶桑品种资源调查及其园林应用研究
"From primitive barbarism to agro-farming, from the industrial age to information society, mankind has gone through countless hardships."
从茹毛饮血到田园农耕,从产业时代到信息社会,历尽沧桑。
IOC Headquarters is set up in Switzerland Lausanne fitting of having the world "garden city ".
国际奥委会总部设在有世界“花园城市”之称的瑞士洛桑。
A la recherche de 1 《Eden》.;
寻找“伊甸园”——从《月下小景》看沈从文对莫泊桑的接受
A well-dressed man came leisurely strolling toward him out of Stuyvesant Park.
一个衣冠楚楚的人从施托伊弗桑特公园里出来,正不慌不忙地朝他踱过来。
"Pastoral" and "Family" in the Late Writings of George Sand;
乔治·桑后期创作中的“田园”与“家庭”——又及与陀思妥耶夫斯基创作之一瞥
A golden lioness and her cub bask in the warmth of a savanna sun in Tanzania's Serengeti National Park.
在坦桑尼亚的塞伦吉地国家公园里,一只金色的狮子和它的孩子正沐浴在热带大草原温暖的阳光中。
本网站所收集内容来自网友分享仅供参考,实际请以各学校实际公布信息为主!内容侵权及错误投诉:1553292129@qq.com
CopyRight © 2020-2024 优校网[www.youxiaow.com]版权所有 All Rights Reserved. ICP备案号:浙ICP备2024058711号