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浏览/检索结果: 共12条，第1-10条 帮助 限定条件 发表日期：2013    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 County-Scale Changes in Soil Organic Carbon of Croplands in Southeastern Gansu Province of China from the 1980s to the Mid-2000s 期刊论文 SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 2013, 卷号: 77, 期号: 6, 页码: 2111-2121 作者:  Li, ZT;  Li, XG;  Li, M;  Yang, JY;  Turner, NC 收藏  |  浏览/下载：5/0  |  提交时间：2015/12/14 Conventional tillage increases soil microbial biomass and activity in the Loess Plateau, China 期刊论文 ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE, 2013, 卷号: 63, 期号: 6, 页码: 489-496 作者:  Guo, D;  Li, XD;  Li, XD;  Wang, J;  Fu, H 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/10 cropland  grassland  metabolic quotient  soil basal respiration  soil organic carbon   Two perennial legumes (Astragalus adsurgens Pall. and Lespedeza davurica S.) adapted to semiarid environments are not as productive as lucerne (Medicago sativa L.), but use less water 期刊论文 GRASS AND FORAGE SCIENCE, 2013, 卷号: 68, 期号: 3, 页码: 469-478 作者:  Guan, XK;  Zhang, XH;  Turner, NC;  Xu, BC;  Li, FM 收藏  |  浏览/下载：4/0  |  提交时间：2015/12/14 bush clover  growing season water use  milk vetch  pasture  water use efficiency   Visualization of the three-dimensional water-flow paths in calcareous soil using iodide water tracer 期刊论文 GEODERMA, 2013, 卷号: 200, 页码: 85-89 作者:  Hu, B;  Han, CL;  Jia, Y;  Zhao, ZH;  Li, FM 收藏  |  浏览/下载：2/0  |  提交时间：2015/12/14 Water-flow paths  Calcareous soil  Iodide water tracer  Three-dimensional   Characteristics of global potential natural vegetation distribution from 1911 to 2000 based on comprehensive sequential classification system approach 期刊论文 GRASSLAND SCIENCE, 2013, 卷号: 59, 期号: 2, 页码: 87-99 作者:  Feng, QS;  Liang, TG;  Huang, XD;  Lin, HL;  Xie, HJ 收藏  |  浏览/下载：4/0  |  提交时间：2015/11/10 Comprehensive sequential classification system  potential natural vegetation  shift distance and direction   Evaluation of six methods to predict grassland net primary productivity along an altitudinal gradient in the Alxa Rangeland, Western Inner Mongolia, China 期刊论文 GRASSLAND SCIENCE, 2013, 卷号: 59, 期号: 2, 页码: 100-110 作者:  Lin, HL;  Zhang, YJ 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/10 Climate-vegetation interaction  forecast efficiency  integrated orderly classification system of grassland  model-data comparison  productivity modeling   Na compound fertilizer promotes growth and enhances drought resistance of the succulent xerophyte Haloxylon ammodendron 期刊论文 SOIL SCIENCE AND PLANT NUTRITION, 2013, 卷号: 59, 期号: 2, 页码: 289-299 作者:  Kang, JJ;  Duan, JJ;  Wang, SM;  Zhao, M;  Yang, ZH 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/10 drought resistance  ecological environment  Haloxylon ammodendron  Na compound fertilizer  succulent xerophyte   Allometric analysis of the effects of density on reproductive allocation and Harvest Index in 6 varieties of wheat (Triticum) 期刊论文 FIELD CROPS RESEARCH, 2013, 卷号: 144, 页码: 162-166 作者:  Qin, XL;  Weiner, J;  Qi, L;  Xiong, YC;  Li, FM 收藏  |  浏览/下载：3/0  |  提交时间：2015/12/14 Harvest Index  Allometry  Yield  Size variation  Cereals   Yield-increase effects via improving soil phosphorus availability by applying K2SO4 fertilizer in calcareous-alkaline soils in a semi-arid agroecosystem 期刊论文 FIELD CROPS RESEARCH, 2013, 卷号: 144, 页码: 69-76 作者:  Liu, CA;  Li, FR;  Liu, CC;  Zhang, RH;  Zhou, LM 收藏  |  浏览/下载：8/0  |  提交时间：2015/12/14 Potato  Spring wheat  Soil organic carbon  Available phosphorus  Semi-arid Loess plateau   Forage Yield and Water Use Efficiency of Alfalfa Applied with Silicon under Water Deficit Conditions 期刊论文 PHILIPPINE AGRICULTURAL SCIENTIST, 2013, 卷号: 96, 期号: 4, 页码: 370-376 作者:  Liu, HX;  Guo, ZG 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/10 alfalfa  Medicago sativa L.  silicon  soil moisture condition  water use efficiency  yield component