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浏览/检索结果: 共8条，第1-8条 帮助 限定条件 学科主题：agriculture     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 The effect of plastic mulch on the fate of urea-N in rain-fed maize production in a semiarid environment as assessed by N-15-labeling 期刊论文 EUROPEAN JOURNAL OF AGRONOMY, 2015, 卷号: 70, 页码: 71-77 作者:  Liu, XE;  Li, XG;  Guo, RY;  Kuzyakov, Y;  Li, FM 收藏  |  浏览/下载：4/0  |  提交时间：2017/01/13 Plastic mulch  Fertilizer nitrogen recovery  Fertilizer nitrogen immobilization  Ammonia volatilization  Urea-nitrogen leaching   Urea kinetics and nitrogen balance and requirements for maintenance in Tibetan sheep when fed oat hay 期刊论文 SMALL RUMINANT RESEARCH, 2015, 卷号: 129, 页码: 60-68 作者:  Zhou, JW;  Guo, XS;  Degen, AA;  Zhang, Y;  Liu, H 收藏  |  浏览/下载：5/0  |  提交时间：2017/01/10 Feeding level  Nitrogen balance  Urea kinetics  Nitrogen requirements  Tibetan sheep   A comparison of nitrogen utilization and urea metabolism between Tibetan and fine-wool sheep 会议论文 Forages and Pastures Symposium on Use of Marginal Lands and Fibrous Byproducts in Efficient Beef and Dairy Production Systems held at the Joint Annual Meeting of the Amer-Dairy-Sci-Assoc, the Amer-Soc-of Animal-Sci, and the Canadian-Soc-of-Animal-Sci, Kansas City, MO, JUL 20-24, 2014 作者:  Zhou, JW;  Mi, JD;  Titgemeyer, EC;  Guo, XS;  Ding, LM 收藏  |  浏览/下载：5/0  |  提交时间：2017/01/17 adaptation  dietary nitrogen utilization  Qinghai-Tibetan Plateau  Tibetan sheep  urea recycling   Plastic Mulch Stimulates Nitrogen Mineralization in Urea-Amended Soils in a Semiarid Environment 期刊论文 AGRONOMY JOURNAL, 2015, 卷号: 107, 期号: 3, 页码: 921-930 作者:  Hai, L;  Li, XG;  Liu, XE;  Jiang, XJ;  Guo, RY 收藏  |  浏览/下载：1/0  |  提交时间：2017/01/13 Nitrogen metabolism and recycling in yaks (Bos grunniens) offered a forage-concentrate diet differing in N concentration 期刊论文 ANIMAL PRODUCTION SCIENCE, 2012, 卷号: 52, 期号: 5, 页码: 287-296 作者:  Guo, XS;  Zhang, Y;  Zhou, JW;  Long, RJ;  Xin, GS 收藏  |  浏览/下载：4/0  |  提交时间：2015/11/10 dietary N  protein  urea recycling  yak   Comparison of Nitrogen Metabolism in Yak (Bos grunniens) and Indigenous Cattle (Bos taurus) on the Qinghai-Tibetan Plateau 期刊论文 ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES, 2011, 卷号: 24, 期号: 6, 页码: 766-773 作者:  Wang, HC;  Long, RJ;  Liang, JB;  Guo, XS;  Ding, LM 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/10 Yak  Grazing Intake  Nitrogen Balance  Plasma Urea Nitrogen  Purine Derivative   Concentration of alpha-Linoleic Acid of Perilla Oil by Gradient Cooling Urea Inclusion 期刊论文 AGRICULTURAL SCIENCES IN CHINA, 2009, 卷号: 8, 期号: 6 - 收藏  |  浏览/下载：3/0  |  提交时间：2014/12/05 gradient cooling  alpha-linoleic acid  urea inclusion  fatty acid  perilla oil   Preparation and properties of a double-coated slow-release and water-retention urea fertilizer 期刊论文 JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2006, 卷号: 54, 期号: 4 - 收藏  |  浏览/下载：3/0  |  提交时间：2014/12/05 slow release  water retention  urea  coat