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浏览/检索结果: 共5条，第1-5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 Optimal harvest timing vs. harvesting for animal forage supply: Impacts on production and quality of lucerne on the Loess Plateau, China 期刊论文 GRASS AND FORAGE SCIENCE, 2015, 卷号: 70, 期号: 2, 页码: 296-307 作者:  Robertson, M;  Shen, Y;  Philp, J;  Hou, F;  Yang, D 收藏  |  浏览/下载：4/0  |  提交时间：2017/01/10 lucerne  China  harvest  biomass  protein   Effect of precision feeding high- and low-quality forage with different rumen protein degradability levels on nutrient utilization by dairy heifers 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:  Ding, LM;  Lascano, GJ;  Heinrichs, AJ 收藏  |  浏览/下载：3/0  |  提交时间：2017/01/18 forage quality  heifer  rumen protein degradability   Influences of dietary nitrogen and non-fiber carbohydrate levels on apparent digestibility, rumen fermentation and nitrogen utilization in growing yaks fed low quality forage based-diet 期刊论文 LIVESTOCK SCIENCE, 2012, 卷号: 147, 期号: 1-3, 页码: 139-147 作者:  Zhang, Y;  Zhou, JW;  Guo, XS;  Cui, GX;  Ding, LM 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/10 Rumen fermentation  Digestibility  Protein  Non-fiber carbohydrate  Yak   The effect of conversion of cropland to forage legumes on soil quality in a semiarid agroecosystem 期刊论文 JOURNAL OF SUSTAINABLE AGRICULTURE, 2008, 卷号: 32, 期号: 2, 页码: 335-353 作者:  Zeng, ZX;  Liu, XL;  Jia, Y;  Li, FM 收藏  |  浏览/下载：3/0  |  提交时间：2015/12/14 light fraction C  Loess plateau  semiarid area  soil microbial biomass C  total nitrogen (TN)  total organic C   Vigor tests used to rank seed lot quality and predict field emergence in four forage species 期刊论文 CROP SCIENCE, 2004, 卷号: 44, 期号: 2, 页码: 535-541 作者:  Wang, YR;  Yu, L;  Nan, ZB;  Liu, YL 收藏  |  浏览/下载：4/0  |  提交时间：2015/12/11