نتایج جستجو برای: soil resources
تعداد نتایج: 441754 فیلتر نتایج به سال:
Soil is one of our most precious natural resources. Proper soil management is a key to sustainable agricultural production. Soil management involves six essential practices: proper amount and type of tillage, maintenance of soil organic matter, maintenance of a proper nutrient supply for plants, avoidance of soil contamination, maintenance of the correct soil acidity, and control of soil loss (...
Terrestrial desert ecosystems are strongly structured by the distribution of plants, which concentrate resources and create islands of fertility relative to interplant spaces. Atmospheric nitrogen (N) deposition resulting from urbanization has the potential to change those spatial patterns via resource inputs, resulting in more homogeneous soil resource availability. We sampled soils at 12 dese...
In natural resources, economic evaluation is poor in terms of study due to the uncertainty of non-consuming value of resources. In the present study, the evaluation of water, soil and plant resources in watershed management projects and expert questioning was done to enable the projects to be evaluated and prioritized economically. Three sub-watersheds were selected from the Parcel A ...
We report on a Communication of the European Commission to the Council and the European Parliament in 2002, entitled ‘‘Towards a Thematic Strategy for Soil Protection’’, an operational framework for its implementation and an indicator approach, as a basis for the elaboration of priority research areas for soil protection and the management of Europe’s natural resources. From this, we draw the c...
Mozambique includes 10 agroecological zones with distinct climate and cropping systems (INIA, 1980). Agricultural production is more intensively practiced in the central and northern parts of the country where agroecological conditions are favorable. As a result of 16 years of civil war and low funding for agricultural research few assessments of soil nutrient status have been possible. To asse...
Plants in the field are exposed to varying light and moisture. Agronomic improvement requires knowledge of whole-plant phenotypes expressed in response to simultaneous variation in these essential resources. Most phenotypes, however, have been described from experiments where resources are varied singularly. To test the importance of varying shoot and root resources for phenotyping studies, sis...
a Zhejiang Provincial Key Lab of Subtropical Soil Science and Plant Nutrition, Institute of Soil and Water Resources and Environmental Science, Zhejiang University, Hangzhou 310029, China b Department of Land Management, Zhejiang University, Hangzhou 310029, China c Department of Land, Air and Water Resources, University of California, Davis, CA 95616, United States d College of Life and Enviro...
a State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China b State Key Laboratory of Environment and Resources Information System, Institute of Geographic Sciences and Resources Research, Chinese Academy of Sciences, Beijing 100101, China c Department of Geography, University of Wisconsin-Madison, Madison, WI 53706, ...
Agrogeology is a relatively new applied, problem-solving, interdisciplinary earth and agricultural science that aims at improving agricultural production using agromineral resources. There are two aspects of agrogeology: 1. The influence of parent material on soil development and soil fertility, and 2. The beneficial application of rocks and minerals to enhance soil fertility and crop productiv...
this research was carried out based on systematic analysis approach for evaluation of ecological resources capability of kasilian representative catchment for agricultural land use. the study area is located in southern of mazandaran province. in this study we used topography digital data, paper maps, climatology data, satellite images and gis, database and spreadsheet software. the process of ...
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