搜索结果: 61-75 共查到“知识库 草原学”相关记录688条 . 查询时间(2.38 秒)
Nutritional Evaluation of Young Bulls on Tropical Pasture Receiving Supplements with Different Protein:Carbohydrate Ratios
Digestibility Grazing Intake Pasture Supplementation, Calf
2016/5/17
The objective of this work was to evaluate the nutritional parameters of young bulls supplemented with different ratios of protein: carbohydrate on tropical pastures from 4 until 18 months old. Fifty-...
Determination of Nutrient Contents and In vitro Gas Production Values of Some Legume Forages Grown in the Harran Plain Saline Soils
In vitro Gas Production Glycophyte Forages Legume sp. Relative Feed Value Salt Stress
2016/5/16
The aim of this study was to determine the nutritive value of some legume species in salt-affected soils of South-East Anatolian region using chemical composition and in vitro gas production kinetics....
严羽《沧浪诗话·诗评》说:“汉魏古诗,气象混沌,难以句摘;晋以后方有佳句。”的确,重视篇中的警句,是魏晋以后诗歌创作与评赏的一个重要特点。而谢灵运的“池塘生春草”,便是第一个被人们从全篇诗中拈出而广为传诵的佳句之“祖”。这五个字,不但播于当时人们的口中,而且在后世一代一代地流传下来,人们对它的赞扬几乎成为套语,从而使它带上了一种经典性。
Nutritive Value of Grasses in Semi-arid Rangelands of Ethiopia: Local Experience Based Herbage Preference Evaluation versus Laboratory Analysis
Semi-arid Rangelands Spatial Variation in Feed Quality
2016/5/11
We examined the nutritive value of common grass species in the semi-arid rangelands of Borana in southern Ethiopia using local experience based herbage preference (LEBHP) perception and laboratory tec...
夏季常见草坪病害及抗病品种推荐
夏季 常见草坪 病害 抗病品种
2015/2/4
七、八月份北方地区天气炎热多雨，是冷季型草坪病害多发季节，应该特别注意草坪的日常养护工作。养护管理工作主要以控制病害为主，北方地区草坪易发生的病害有褐斑病、白粉病、腐霉枯萎病、镰刀枯萎病、锈病等。
谈到草坪，人们多半会在脑海中勾画出高尔夫球场、足球场、公园绿地等场景——由绿色覆盖的致密植物群落。建筑草坪的具体定义是什么呢？生长致密的绿色苔藓地也能称为草坪么？什么样的草才叫做草坪划？现实生活中关于草坪的概念，存在一些误区，现将此类问题进行一一阐释。
草坪在园林景观中的重要性
草坪 园林景观 重要性
2015/2/4
草坪作为园林景观的重要组成部分，在现代园林建设中必不可少。在园林景观设计中，合理地利用草坪，可达到既经济、适用又美观宜人的园林景观效果，为人们创造出舒适优美、赏心悦目的学习、生活、工作、休息和游憩环境。所谓草坪，是指草本植物经人工建植或天然草地经人工改造后形成的具有美化环境作用与观赏价值的坪状草地。草坪的应用有着悠久的历史，最初被用于庭院的美化，随着社会的进步，它逐渐成为“文明生活的象征，游览休息...
从苜蓿在美国农业中的地位看中国苜蓿产业发展
苜蓿 美国农业 中国苜蓿产业发展
2015/2/4
自2008年爆发三聚氰胺奶粉事件以来，中国牛奶及其他食品的质量问题就一直成为民主和媒体关注的焦点。牛奶质量问题，使作为家畜（尤其是奶牛）最佳饲料的优质牧草（尤其是紫花苜蓿）被奶业和其他养殖行业所重视，国内优质紫花苜蓿干草近两年因此供不应求，苜蓿产业似乎又迎来了春天。但前些年苜蓿产业由盛而衰的惨痛教训又使许多投资者踌躇不前。俗话说，他山之石可以攻玉，本文试图通过剖析苜蓿产业在美国农业中的重要地位，求...
人工牧草—通往现代农业的桥梁
人工牧草 现代农业 桥梁
2015/2/4
种植业是农业的基础产业，生产人畜赖以生存的直接产品，在农业中的低位显而易见。从某种意义上讲，畜牧业又是种植业的加工业，而食品加工业又是畜牧业的加工业。植物通过生物加工变成为动物产品后，再进入食品加工业，是现代农业的一大特点。现代种植业是三元结构：粮食作物、经济作物和饲料作物。在饲料作物中人工牧草占主导地位。
研究了不同浓度代谢互补抑制剂碘乙酰胺(IOA)和罗丹明6G(R-6G)处理与里奥百脉根(Lotus corniculatus L. cv. Leon)、扁蓿豆(Melilotoides ruthenica (L.) Sojak)及清水紫花苜蓿(Medicago sativa L. cv. Qingshui)3种豆科牧草愈伤组织原生质体活力和再生力之间的相关性。结果表明,3~10mmol/L的IOA...
Mineral Status in Cattle Fed Rice Straw and Para Grass Combined with Different Levels of Protein Derived from Cassava Foliage
Digestibility Intake Retention Cassava Foliage Rice Straw Para Grass
2016/5/11
Eight male cattle of the Local Yellow breed with an average live weight of 121 kg and an average age of 18 months were used to evaluate the effects of different levels of sun-dried cassava (Manihot es...
Effect of Harvesting Frequency, Variety and Leaf Maturity on Nutrient Composition, Hydrogen Cyanide Content and Cassava Foliage Yield
Manihot esculenta Crantz Cassava Foliage Harvesting Frequency Variety
2016/5/11
The experiment studied the effect of harvesting frequencies and varieties on yield, chemical composition and hydrogen cyanide content in cassava foliage. Foliage from three cassava varieties, K94 (ver...
Effect of Cassava Hay and Rice Bran Oil Supplementation on Rumen Fermentation, Milk Yield and Milk Composition in Lactating Dairy Cows
Cassava Hay Rice Bran Oil Rumen Fermentation Milk Yield and Composition Lactating Dairy Cows
2016/5/10
Four crossbred (75% Holstein Friesian) lactating dairy cows, with an average live weight of 418±5 kg and 36±10 d in milk were randomly assigned according to a 2×2 factorial arrangement in a 4×4 Latin ...
中国农业科学院张掖牧草及生态农业野外科学观测试验站位于甘肃省张掖市甘州区党寨镇。地处东经100°26′，北纬38°56′，海拔1482.7米。位于张掖市城南8公里处，距党寨镇2公里，国道312线、省道227线紧邻基地，交通十分便利。
